Free PDF guide: 6 key focus points for website success
Download now
Written by Aditya Raj Singh on February 4, 2024

219+ SEO Acronyms & Terms Explained

Skip to What You Need show

Welcome to the essential guide of SEO and digital marketing acronyms. From AJAX to YTD, this concise glossary covers key terms you'll encounter in the world of online marketing and web development.

AJAXAsynchronous JavaScript and XML
AOVAverage Order Value
APIApplication Program Interface
ARAugmented Reality
ASArticle Submission
ASPApplication Service Provider
ASP.NETApplication program that runs inside IIS which allows web programmers to build dynamic websites on Microsoft servers.
ATDAgency Trading Desk
B2BBusiness to Business
B2CBusiness to Consumer
BHWBlackhat World
BLBright Local
BRBounce Rate
ccTLDCountry Code Top-level Domain
CAPTCHACompletely Automated Public Turing Test to Tell Computers and Humans Apart
CFCitation Flow
CGICommon Gateway Interface
CLVCustomer Lifetime Value
CMSContent Management System
COACost of Acquisition
CPACost per Acquisition
CPCCost per Click
CPICost per Impression
CPLCost per Lead
CPMCost per Thousands
CPOCost per Order
CPVCost per View
CRConversion Rate
CRMCustomer Relationship Management
CROConversion Rate Optimization
CSEComparison Shopping Engine/Custom Search Engine
CSSCascading Style Sheet
CTACall to Action
CTRClick-through Rate
CWVCore Web Vitals
CXCustomer Experience
DADomain Authority
DCData Center
DFOData Feed Optimization
DKIDynamic Keyword Insertion
DLPDirectory Listings Page
DLRDeep Link Ratio
DMCADigital Millennium Copyright Act
DMOZDirectory – Mozilla
DMPData Management Platform
DNSDomain Name System
DRDomain Ranking
DSDirectory Results Pages
DRPsDirectory Submission
DSPDemand-side Platform
DSRPDirectory Search Results Page
ECPCEnhanced Cost Per Click
EMDExact Match Domain
EMQExact Match Query
EPCEarnings per Click
EPMEarnings per Thousand
ERDEducation Referring Domains
ESPEmail Service Provider
FBMLFacebook Markup Language
FCPFrequently Cached Page
FFAFree for All Pages
FTPFile Transfer Protocol
G+Google Plus
GAGoogle Analytics
GA4Google Analytics 4
GAPGoogle Advertising Professional
GASGuaranteed Article Submission
GBPGoogle Business Profile
GDSGuaranteed Directory Submission
GISGoogle Image Search
GIYGoogle It Yourself
GKPGoogle Knowledge Panel
GRDGovernment Referring Domains
GSCGoogle Search Console
GTMGoogle Tag Manager
GUIGraphical User Interface
GWTGoogle Webmaster Tools
GYMGoogle Yahoo MSN
H1Heading Level 6 HTML Markup
H2Heading Level 6 HTML Markup
H3Heading Level 6 HTML Markup
H4Heading Level 6 HTML Markup
H5Heading Level 6 HTML Markup
H6Heading Level 6 HTML Markup
HrefHypertext Reference
HTMLHypertext Markup Language
HTTPHyperText Transfer Protocol
HTTPSHyperText Transfer Protocol Secure
IBLInbound Links
IDFInverse Document Frequency
IFTTTIf This, Then That
IMInternet Marketing
IPInternet Protocol (Address)
ISPInternet Service Providers
JGIJust Google It
KWRKeyword Research
LBLink Building
LPOLanding Page Optimization
LSALatent Semantic Analysis
LSILatent Semantic Indexing
LTKWLong Tail Keyword
LTVLifetime Value
LVLocal Viking
MCPModerately Cached Page
MFAMade For Advertising
MQLMarketing Qualified Lead
MTOMeta Tags Optimization
MVTMultivariate Testing
NAPName Address Phone Number
NSEONegative SEO
OBLOutbound Link
ODPOpen Directory Project
ORMOnline Reputation Management
OSOperating System (or Open Source)
OSEOpen Site Explorer
OWBLOne Way Back Link
P4PPaid For Placement
PAPage Authority
PBNPrivate Blog Network
PDFPortable Document Format
PFIPay for Inclusion
PFLPaid for Listings
PFPPay for Performance
PHPHypertext Preprocessor
PMQPartial Match Query
PPCPay per Click
PPCSEPay per Click Search Engine
PPLPay per Lead
PPRPay per Rank
PPSPay per Sale
PRPress Release
QAQuality Assurance
QSQuality Score
RDReferring Domains
RFIRequest for Information
RIRegular Index
RMReputation Management
ROIReturn on Investment
RONRun of Network
RORRuby on Rails
ROSRun of Site
RSSReally Simple Syndication or Rich Site Summary
RTDReal Time Data
RTLRegional Long Tail
SaaSSoftware as a Service
SABService Area Business
SBSocial Bookmarking
SDSemantic Distance
SDTTStructured Data Testing Tool
SESearch Engine
SEJSearch Engine Journal
SEMSearch Engine Marketing
SEOSearch Engine Optimization
SEOsSearch Engine Optimization Performance
SEPSearch Engine Positioning
SERSearch Engine Ranking
SERMSearch Engine Results Management
SERPSearch Engine Results Page
SESSearch Engine Strategies
SEWSearch Engine Watch
SISupplemental Index
SLAService Level Agreement
SMBSmall and Medium Businesses
SMEsSmall And Medium-Sized Enterprises
SMMSocial Media Marketing
SMOSocial Media Optimization
SMPSocial Media Platform
SNSSocial Networking Service
SQLSales Qualified Lead (or Structured Query Language)
SRMSearch Reputation Management
SSIServer Side Includes
SSLSecure Sockets Layer
SSPSupply-side platform
STWSearch the Web
SVGScalable Vector Graphic
SWLSiteWide Link
TBPRToolbar PageRank
TFTrust Flow
TF-IDFTerm Frequency-Inverse Document Frequency
TLDTop-Level Domain
TLPTop-Level Page
ToSTerms of Service
TRTrust Rank
TTFTopical Trust Flow
UAUniversal Analytics
UCDUser-Centric Design
UIUser Interface
URURL Ranking
URLUniform Resource Locator
USPUnique Selling Point
UTMUrchin Tracking Module
UVUnique Visitor
UXUser Experience
VAVirtual Assistant
VIPSVisual-Block Page Segmentation
VODVideo on Demand
W3CWorld Wide Web Consortium
WMTWeb Master Tools
WMWWebmaster World
WOMMWord of Mouth Marketing
WWWWorld Wide Web
XHTMLExtensible HyperText Markup Language
XMLExtensible Markup Language
Y2KYear Two Thousand
YoYYear on Year
YTDYear to Date
301Resource Moved Permanently
302Resource Moved Temporarily
401Unauthorized Access to Resource
403Forbidden Access
404Resource / Page Not Found
503Server is Unavailable

AJAX: Asynchronous Javascript and XML

AJAX is a web technique enhancing interactivity and efficiency. By fetching data in the background and updating parts of a web page, it eliminates the need for full page reloads. This results in a smoother user experience and faster interactions. For SEO, AJAX can speed up content indexing as search engines don't need to reload pages to access new content.

AOV: Average Order Value

Average Order Value measures the average amount spent each time a customer places an order. In e-commerce, a higher AOV indicates more efficient sales processes and is crucial for evaluating pricing strategies and marketing effectiveness.

API: Application Program Interface

APIs are the backbone of software interconnectivity. They allow different applications to communicate and share data, streamlining operations and enhancing user experiences. In digital marketing, APIs integrate various services (like social media or analytics) to provide a cohesive strategy.

AR: Augmented Reality

AR enhances real-world environments with digital elements. In retail, it allows customers to visualize products in their environment. For SEO, AR can improve user engagement and time on site, factors that search engines consider for ranking.

AS: Article Submission

Article submission involves publishing articles on other websites to gain backlinks and visibility. It's a key SEO strategy for improving domain authority and driving traffic, though it requires high-quality content to be effective.

ASP: Application Service Provider

ASPs offer access to software and its functions remotely over the internet. This model is crucial for businesses needing specialized software without the high cost of licensing and maintenance.


Developed by Microsoft, ASP.NET allows building dynamic web applications and services. It's key for creating interactive, data-driven websites that can improve user engagement and experience.

ATD: Agency Trading Desk

Agency Trading Desks manage programmatic ad buying for clients. They leverage technology and data to purchase digital ad inventory efficiently, optimizing marketing spend and targeting.

AV: AltaVista

AltaVista, an early web search engine, set the stage for modern search engines with its advanced technology, although it's now defunct, having been overtaken by Google and others.

B2B: Business to Business

B2B transactions occur between businesses. This model focuses on the supply chain, differing from B2C (Business to Consumer) in marketing strategies and customer relations.

B2C: Business to Consumer

B2C involves selling products or services directly to consumers. This model requires understanding consumer behavior and preferences for effective marketing.

BH: Blackhat

Blackhat SEO uses aggressive strategies that focus on exploiting search engine algorithms rather than providing value to users, often violating guidelines and risking penalties.

BHW: Blackhat World

An online forum discussing blackhat SEO techniques. While it offers insights into aggressive SEO strategies, it also poses risks of penalties from search engines.

BL: Bright Local

Bright Local is a local SEO tool helping businesses enhance their local search presence. It's instrumental in managing local listings and improving local search rankings.

BR: Bounce Rate

Bounce Rate indicates the percentage of visitors who leave a site after viewing only one page. A high bounce rate can signal content or usability issues.

ccTLD: Country Code Top-Level Domain

ccTLDs are domain extensions specific to a country (like .uk, .ca). They are crucial for businesses targeting specific geographical markets in SEO and digital marketing.

CAPTCHA: Completely Automated Public Turing Test to Tell Computers and Humans Apart

CAPTCHAs help distinguish human users from bots, protecting websites from spam and automated attacks, and are essential for online security.

CF: Citation Flow

A metric by Majestic SEO, Citation Flow predicts a URL's influence based on the number of sites linking to it. It's used in link building and SEO analysis.

CGI: Common Gateway Interface

CGI enables web servers to generate dynamic content. It's foundational for creating interactive websites that respond to user inputs, enhancing user experience.

CLV: Customer Lifetime Value

CLV estimates the total revenue a business can expect from a customer over the relationship's duration. It's vital for long-term business strategy and customer relationship management.

CMS: Content Management System

CMSs facilitate website content creation and management. Popular platforms like WordPress make it easier for non-technical users to maintain and update their websites, impacting SEO positively by ensuring fresh, relevant content.

COA: Cost of Acquisition

The total cost involved in acquiring a new customer, COA is crucial for understanding the effectiveness of marketing strategies and budget allocation.

CPA: Cost per Acquisition

CPA measures the cost to acquire a customer, typically through a specific campaign or channel. It's a key metric in evaluating the effectiveness of advertising and marketing efforts.

CPC: Cost per Click

A common pricing model in digital advertising, CPC charges advertisers based on the number of clicks on their ads. It's used extensively in pay-per-click (PPC) campaigns.

CPI: Cost per Impression


PI involves pricing based on the number of times an ad is displayed, regardless of clicks or engagement. It's used for brand awareness campaigns where exposure is the goal.

CPL: Cost per Lead

CPL calculates the cost to acquire a lead, such as a sign-up or form submission. It's a crucial metric in lead generation strategies to assess the cost-effectiveness of campaigns.

CPM: Cost per Thousands

CPM (Cost per Mille) refers to the cost of 1,000 ad impressions. It's a standard metric in advertising used to price ad space and evaluate campaign reach.

CPO: Cost per Order

This metric assesses the cost involved in acquiring an order through a specific marketing channel, helping businesses understand the efficiency of their sales strategies.

CPV: Cost per View

In video advertising, CPV is used to measure the cost per video view or interaction, providing insights into the effectiveness of video marketing campaigns.

CR: Conversion Rate

Conversion Rate tracks the percentage of visitors completing a desired action (like making a purchase). High CRs indicate effective website design and marketing strategies.

CRM: Customer Relationship Management

CRM systems help businesses manage interactions with customers and prospects, streamlining sales, marketing, and customer service processes for better relationship building.

CRO: Conversion Rate Optimization

CRO involves strategies to increase the percentage of visitors who perform desired actions on a website, enhancing the site's effectiveness and user experience.

CSE: Comparison Shopping Engine/Custom Search Engine

CSEs allow users to compare products and prices from different online retailers, helping consumers make informed purchasing decisions and driving traffic to e-commerce sites.

CSS: Cascading Style Sheets

CSS is a language for styling web pages. It separates content from design, allowing for more flexible and consistent presentation across different web browsers and devices.

CTA: Call to Action

A CTA is a prompt on a website that encourages users to take some specific action, like 'Buy Now' or 'Subscribe.' Effective CTAs can significantly increase conversion rates.

CTR: Click-through Rate

CTR measures the ratio of users who click on a specific link to the number of total users who view a page or ad. It's a key metric in assessing the effectiveness of online ads or email campaigns.

CWV: Core Web Vitals

Core Web Vitals are a set of specific factors Google considers important in a webpage's overall user experience, including loading speed, interactivity, and visual stability.

CX: Customer Experience

Customer Experience encompasses the overall experience a customer has with a business, from first contact to post-purchase. Positive CX is essential for customer loyalty and repeat business.

DA: Domain Authority

Developed by Moz, Domain Authority predicts how well a website will rank on search engine result pages. A higher DA indicates better potential for ranking.

DC: Data Center

Data centers house computer systems and associated components like telecommunications and storage systems. They are critical for hosting websites, storing data, and managing online transactions.

DFO: Data Feed Optimization

DFO involves optimizing product data feeds for e-commerce sites, ensuring accurate and detailed product listings for better visibility and conversion rates.

DKI: Dynamic Keyword Insertion

DKI is a feature in digital advertising where keywords in ad text are automatically replaced with the user's search query, making the ad more relevant and likely to be clicked.

DLP: Directory Listings Page

DLPs are web pages listing various resources or businesses. Optimizing these listings is crucial for local SEO, helping businesses improve their online visibility.

DLR: Deep Link Ratio

DLR is the ratio of deep links (links to specific pages within a website) to total inbound links. A higher DLR can indicate a site's content depth and relevance.

DMCA: Digital Millennium Copyright Act

DMCA provides a legal framework for copyright management and infringement issues on the internet. It's crucial for protecting digital content from unauthorized use.

DMOZ: Directory – Mozilla

DMOZ was a multilingual open-content directory of World Wide Web links. Though no longer active, it was once significant in web categorization and SEO.

DMP: Data Management Platform

DMPs collect and manage data from various sources, enabling more targeted and effective advertising strategies through audience segmentation and analysis.

DNS: Domain Name System

DNS translates domain names to IP addresses, allowing browsers to load internet resources. It's essential for ensuring that websites are accessible to users.

DR: Domain Ranking

Domain Ranking is a metric that assesses the strength and authority of a website's backlink profile, influencing its ability to rank in search engine results.

DS: Directory Results Pages

Directory Results Pages list websites or resources in a categorized format. They can be an important source of backlinks and referral traffic for websites.

DRPs: Directory Submission

Directory Submission involves submitting a website to directory listings, a traditional SEO strategy to gain backlinks and improve search visibility.

DSP: Demand-side Platform


allow buyers of digital advertising inventory to manage multiple ad exchange and data exchange accounts through a single interface, optimizing ad buying.

DSRP: Directory Search Results Page

A DSRP displays results from online directories. Optimizing for DSRPs can improve a website's visibility in specific niches or local searches.

ECPC: Enhanced Cost Per Click

ECPC is a bidding strategy in online advertising where the advertiser allows an algorithm to adjust their bid for clicks that seem more likely to lead to a sale or conversion.

EMD: Exact Match Domain

An EMD is a domain name that precisely matches a search query that will likely drive traffic to a website, such as for "buy books online."

EMQ: Exact Match Query

EMQ refers to a search query that exactly matches a specific keyword or phrase, often used in SEO and PPC to target specific user intents.

EPC: Earnings per Click

EPC is the average earnings generated each time a user clicks on an ad. It's a crucial metric for publishers in affiliate marketing to assess profitability.

EPM: Earnings per Thousand

EPM (Earnings Per Mille) measures the estimated earnings per thousand impressions, used in advertising to evaluate the effectiveness of ad placements.

ERD: Education Referring Domains

ERD refers to backlinks from educational websites (.edu domains). These are highly valued in SEO for their authority and trustworthiness.

ESP: Email Service Provider

An ESP offers services for sending and managing email marketing campaigns. They provide tools for designing, sending, and tracking email performance.

FB: Facebook

A leading social media platform, Facebook is crucial for digital marketing. It offers targeted advertising options, audience engagement, and brand building opportunities.

FBML: Facebook Markup Language

FBML was used to customize Facebook Pages with code similar to HTML. While deprecated, it played a role in creating customized user experiences on Facebook.

FCP: Frequently Cached Page

FCP refers to web pages that are regularly updated and re-cached by search engines, indicating fresh content, a factor in search engine ranking algorithms.

FFA: Free for All Pages

FFA pages are websites that allow anyone to post a link. Historically used for link building, they're now seen as low-quality by search engines and can harm SEO.

FTP: File Transfer Protocol

FTP is a standard network protocol used for the transfer of computer files between a client and server on a computer network. It's essential for uploading files to web servers.

G: Google

The leading search engine, Google dominates the online search market. Understanding its algorithms and SEO guidelines is crucial for digital marketing success.

G+: Google Plus

Google Plus was a social network operated by Google. While it was discontinued, it once played a role in social media marketing and SEO strategies.

GA: Google Analytics

Google Analytics is a web analytics service offered by Google that tracks and reports website traffic. It's indispensable for understanding user behavior and optimizing websites.

GA4: Google Analytics 4

The latest version of Google Analytics, GA4, offers advanced features for tracking user interactions across platforms and devices, providing deeper insights into user behavior.

GAP: Google Advertising Professional

GAP was a certification for professionals managing AdWords campaigns. Though now replaced by Google Ads certification, it signified expertise in online advertising.

GAS: Guaranteed Article Submission

GAS refers to services guaranteeing the submission of articles to various directories or websites. While it can increase visibility, the quality of backlinks varies.

GBP: Google Business Profile

Formerly Google My Business, GBP allows businesses to manage their online presence across Google, including Search and Maps, crucial for local SEO.

GDS: Guaranteed Directory Submission

GDS services ensure a website’s submission to a number of web directories, potentially increasing backlinks and visibility, though the quality impact varies.

GIS: Google Image Search

Google Image Search allows users to search the web for image content. Optimizing images for GIS can drive traffic to a website and improve user engagement.

GIY: Google It Yourself

A colloquial term suggesting someone should search for the information on Google themselves. It reflects Google's omnipresence in information search.

GKP: Google Knowledge Panel

The Google Knowledge Panel displays key information about businesses, people, places, and things alongside search results, important for brand visibility and credibility.

GRD: Government Referring Domains

Backlinks from government websites (.gov domains) are highly valued in SEO due to their authority and trustworthiness.

GSC: Google Search Console

A free service offered by Google, GSC helps webmasters monitor, maintain, and troubleshoot their site's presence in Google search results.

GTM: Google Tag Manager

GTM is a tag management system that allows easy updating of tracking codes and related code snippets on a website or mobile app.

GUI: Graphical User Interface

GUI is the interface through which users interact with electronic

devices. Well-designed GUIs improve usability and user experience on websites and applications.

GWT: Google Webmaster Tools

Now known as Google Search Console, GWT provided webmasters with tools to monitor and optimize their website's presence in Google search results.

GYM: Google Yahoo MSN

An acronym representing the dominant search engines (Google, Yahoo, MSN) of the past. Understanding their differences was crucial for effective SEO.


HTML heading tags (H1-H6) are used for structuring content on web pages. Proper use of these tags helps in organizing content and improving SEO.

Href: Hypertext Reference

Href is an attribute used in HTML to specify the URL of a page that a link goes to. Correct use is important for SEO and site navigation.

HTML: Hypertext Markup Language

HTML is the standard language for creating web pages. Understanding and using HTML effectively is essential for web design, content creation, and SEO.

HTTP: HyperText Transfer Protocol

HTTP is the foundation of data communication for the World Wide Web. It defines how messages are formatted and transmitted, and how web servers and browsers respond.

HTTPS: Hypertext Transfer Protocol Secure

HTTPS is the secure version of HTTP, used for secure communication over a computer network. It's crucial for protecting user data and gaining trust from visitors.

IBL: Inbound Links

Inbound links are links from other websites leading to your website. They are crucial for SEO as they indicate your site's authority and relevance.

IDF: Inverse Document Frequency

IDF is a measure used in text retrieval and information retrieval, indicating how rare or common a word is in a given document set.

IG: Instagram

A popular social media platform, Instagram is significant for digital marketing, offering opportunities for brand engagement, influencer marketing, and visual storytelling.

IFTTT: If This, Then That

IFTTT is a web-based service that creates chains of simple conditional statements, enabling the automation of web applications and devices for efficiency and integration.

IM: Internet Marketing

Internet Marketing encompasses a range of marketing activities done online, including SEO, PPC, social media marketing, and email marketing.

IP: Internet Protocol (Address)

An IP address is a unique address that identifies a device on the internet or a local network, crucial for internet communication and security.

ISP: Internet Service Providers

ISPs offer services for accessing, using, or participating in the Internet. They are essential for web hosting, online access, and internet connectivity.

JGI: Just Google It

A colloquial phrase implying that the answer to a question can easily be found by searching on Google, highlighting the search engine's extensive information coverage.

KW: Keyword

Keywords are terms used in digital marketing to describe words or phrases users enter into search engines, central to SEO and content strategy.

KWR: Keyword Research

Keyword Research involves identifying popular words and phrases people use in search engines, essential for SEO and content marketing strategies.

LB: Link Building

Link Building is the process of acquiring hyperlinks from other websites to your own, a fundamental aspect of SEO for improving site authority and ranking.

LPO: Landing Page Optimization

LPO involves improving elements on a landing page to increase conversions. Effective LPO can significantly impact the success of online marketing campaigns.

LSA: Latent Semantic Analysis

LSA is a technique in natural language processing, helping search engines understand user search patterns and improving the accuracy of search results.


Local SEO is optimizing a website to rank well in local search results, crucial for businesses that operate in specific geographic areas.

LSI: Latent Semantic Indexing

LSI helps search engines identify related keywords and improve the relevance of search results. It's significant in content creation for SEO.

LTKW: Long Tail keyword

Long Tail Keywords are longer, more specific keyword phrases. They are essential for targeted SEO strategies, often resulting in higher conversion rates.

LTV: Lifetime Value

Lifetime Value is the predicted net profit attributed to the entire future relationship with a customer, guiding marketing strategies and customer relationship management.

LV: Local Viking

Local Viking is a local SEO and listing management tool that helps businesses manage their online presence across various platforms.

MCP: Moderately Cached Page

MCP refers to web pages that are cached by search engines at a moderate frequency, indicating less frequent content updates than FCPs.

MFA: Made For Advertising

MFA sites are designed primarily to host advertisements. These are often considered low-quality by search engines and can negatively impact SEO.

MQL: Marketing qualified Lead

MQLs are leads judged more likely to become a customer compared to other leads. Identifying MQLs helps in focusing marketing efforts for higher conversion rates.

MTO: Meta Tags Optimization

MTO involves optimizing meta tags (like title tags and meta descriptions) for better search engine visibility and click-through rates from SERPs.


: Multivariate testing
MVT is a technique in marketing and statistical analysis where multiple variables are tested to determine the best combination for achieving desired outcomes.

NAP: Name Address Phone Number

NAP consistency across the web is crucial for local SEO. Inaccurate or inconsistent NAP information can harm a business's local search rankings.

NSEO: Negative SEO

Negative SEO involves malicious practices aimed at harming a competitor’s search rankings. These unethical tactics can include spammy link building to a competitor's site.

OBL: Outbound Link

Outbound links are links from a website to another website. They are important for SEO as they can signal the relevance and quality of the site's content.

ODP: Open Directory Project

ODP, also known as DMOZ, was a large, multilingual open-content directory of the web. It was widely used in SEO before being closed.

ORM: Online Reputation Management

ORM involves managing and influencing public perception of a brand or individual online, crucial for maintaining positive brand image and customer trust.

OS: Operating System (or Open Source)

In computing, an OS is software that manages computer hardware and software resources. Open Source refers to software with source code freely available for modification.

OSE: Open Site Explorer

Developed by Moz, OSE was a tool for checking backlinks and understanding link building opportunities. It has since been replaced by Moz's Link Explorer.

OWBL: One Way Back Link

OWBLs are links from one website to another without reciprocal linking, valuable for SEO as they can indicate the site's authority and relevance.

P4P: Paid For Placement

P4P is an advertising model where advertisers pay for their ads to be placed on websites, search engines, or social media platforms.

PA: Page Authority

Developed by Moz, Page Authority predicts how well a specific page will rank on search engine result pages (SERPs).

PBN: Private Blog Network

PBNs are networks of websites used to create links to a single website for the purpose of manipulating search engine rankings, a risky SEO strategy.

PDF: Portable Document Format

PDFs are a file format used for presenting documents independent of software, hardware, or operating systems. Optimizing PDFs can contribute to SEO.

PFI: Pay for Inclusion

PFI in SEO refers to paying a search engine or a directory to include a website in its index. It's a debated practice in terms of effectiveness and ethics.

PFL: Paid for Listings

PFL is a model where websites charge for listing products or services. It's common in directories and some e-commerce platforms.

PFP: Pay for Performance

PFP advertising models charge advertisers based on the performance of their ads, such as conversions or sales, rather than clicks or impressions.

PHP: Hypertext Preprocessor

PHP is a popular server-side scripting language for web development, widely used for creating dynamic and interactive web pages.

PMQ: Partial Match Query

PMQs are search queries that partially match certain keywords or phrases. Targeting these in SEO can capture a broader audience with similar interests.

PPC: Pay per Click

PPC is an internet advertising model where advertisers pay a fee each time one of their ads is clicked, commonly used in search engine advertising.

PPCSE: Pay per Click Search Engine

PPCSEs are search engines where advertisers can bid for ad placement in sponsored links when someone searches on a keyword related to their business.

PPL: Pay per Lead

PPL is an online advertising pricing model where the advertiser pays for an explicit sign-up from a consumer interested in the advertiser's offer.

PPR: Pay per Rank

PPR is a pricing model where payment is based on the ranking achieved for specified keywords or phrases in search engine results pages.

PPS: Pay per Sale

PPS is an affiliate marketing model where a publisher receives a commission for each sale made through their referral, a common tactic in e-commerce.

PR: Press Release

Press Releases are official statements issued to media giving information on a particular matter. They can be used in digital marketing for announcements and SEO.

PV: Pageviews

Pageviews measure the total number of pages viewed. High pageviews can indicate engaging content and effective site navigation.

QA: Quality Assurance

QA in web development involves the systematic process of ensuring that a product or service meets specified requirements and works as intended.

QS: Quality Score

In digital advertising, Quality Score is a metric used by search engines to determine the quality and relevance of your ads and keywords.

RD: Referring Domains

Referring Domains are external websites that link back to your site. They are important in SEO as they can boost site authority and search rankings.

RFI: Request for information

An RFI is a standard business process requesting information about products or services from suppliers to make informed purchasing decisions.

RI: Regular Index

Regular Index in SEO refers to the normal indexing process

of search engines where web pages are added to their database through crawling.

RM: Reputation Management

RM involves monitoring and influencing an individual's or brand's reputation online. It's a key part of digital marketing and public relations strategies.

ROI: Return on Investment

ROI measures the profitability of an investment. In digital marketing, it assesses the effectiveness of marketing campaigns in generating returns.

RON: Run of Network

RON is an ad buying option that allows advertisers to place ads across all sites in an ad network, offering wide exposure but less targeting control.

ROR: Ruby on Rails

Ruby on Rails is a server-side web application framework written in Ruby. It's known for its simplicity and productivity in building web applications.

ROS: Run of Site

In advertising, ROS allows ads to appear on any page within a website, offering broad exposure but potentially less targeted compared to specific placements.

RSS: Really Simple Syndication or Rich Site Summary

RSS is a web feed that allows users and applications to access updates to websites in a standardized format, useful for content distribution and syndication.

RTD: Real Time Data

RTD refers to information that is delivered immediately after collection. In digital marketing, real-time data is crucial for timely decision-making and strategy adjustments.

RTL: Regional Long Tail

Regional Long Tail keywords are specific, location-based search terms. They are valuable in local SEO for attracting a targeted audience.

SaaS: Software as a Service

SaaS is a software distribution model where applications are hosted by a vendor or service provider and made available to customers over the internet.

SAB: Service Area Business

A SAB is a business that serves customers at their locations. In local SEO, optimizing for SABs involves targeting specific service areas and local search terms.

SB: Social Bookmarking

Social Bookmarking is an online service where users can add, annotate, edit, and share bookmarks of web documents, useful for content promotion and SEO.

SD: Semantic Distance

Semantic Distance in SEO refers to the closeness of meaning between words or phrases. Understanding this can improve content relevance and search ranking.

SDTT: Structured Data Testing Tool

SDTT, provided by Google, helps webmasters test and validate their structured data, ensuring it's correctly implemented for enhanced search visibility.

SE: Search Engine

A search engine is a software system designed to carry out web searches, providing a crucial platform for digital marketing and SEO strategies.

SEJ: Search Engine Journal

SEJ is an online publication that covers the latest news and best practices in the SEO and digital marketing industry.

SEM: Search Engine Marketing

SEM encompasses the use of paid advertising to increase a site's visibility in search engine results pages, a key tactic in digital marketing strategies.

SEO: Search engine optimisation

SEO involves optimizing a website to rank higher in search engine results, enhancing online visibility, and driving organic traffic.

SEOs: Search Engine Optimization Performance

SEOs refers to the effectiveness of search engine optimization efforts, impacting a website's visibility and ranking in search engine results.

SEP: Search Engine Positioning

SEP involves strategies to improve a website's placement in search engine results, enhancing visibility and accessibility to potential customers.

SER: Search Engine Ranking

SER refers to the position of a website on a search engine results page. Higher rankings typically lead to more traffic and visibility.

SERM: Search Engine Results Management

SERM involves influencing and managing the search engine results to protect and enhance a brand's reputation online.

SERP: Search Engine Results Page

SERP displays the results of a user's search query on a search engine. It includes organic search results, paid advertisements, and other search features.

SES: Search Engine Strategies

SES are tactics and techniques used to improve visibility and ranking in search engines, encompassing both SEO and paid search strategies.

SEW: Search Engine Watch

SEW is an online publication providing insights and analysis on the search engine industry, covering topics like SEO, SEM, and search engine algorithms.

SI: Supplemental Index

Google's Supplemental Index used to include pages with lower PageRank. While no longer explicitly labeled, it represented less frequently searched content.

SLA: Service Level Agreement

An SLA is a contract between a service provider and a client that defines the level of service expected, common in web hosting and IT service contracts.

SMB: Small and Medium Businesses

SMBs are businesses with limited revenue or number of employees. They often require tailored marketing strategies and tools suitable for their scale.

SMEs: Small And Medium-Sized Enterprises

SMEs are businesses that maintain revenues, assets, or a number of employees below a certain threshold. They play a vital role in the economy and have unique marketing needs.

SMM: Social Media Marketing

SMM involves using social media platforms to promote products or services. It's a crucial component of digital marketing strategies for audience engagement and brand building.

SMO: Social Media Optimization

SMO is the use of social media networks to manage and grow an organization's message and online presence, enhancing brand visibility and broadening customer reach.

SMP: Social Media Platform

SMPs are websites or applications that enable users to create and share content or participate in social networking, crucial for digital marketing and engagement.

SNS: Social Networking Service

SNS is an online platform which people use to build social networks or social relations with others who share similar personal or career interests, activities, backgrounds or real-life connections.

SQL: Sales Qualified Lead (or Structured Query Language)

In marketing, a SQL is a prospective customer that has been researched and vetted and is ready for the next stage of the sales process. In computing, SQL is a language for managing data held in a relational database management system.

SRM: Search Reputation Management

SRM involves monitoring and influencing a brand's reputation within search engine results, crucial for maintaining positive online visibility and trust.

SSI: Server Side Includes

SSI is a simple interpreted server-side scripting language used primarily for including the contents of one or more files into a web page on a web server.

SSL: Secure Sockets Layer

SSL is the standard technology for keeping an internet connection secure and safeguarding any sensitive data sent between two systems.

SSP: Supply-side platform

An SSP is a technology platform that enables publishers to manage their advertising space inventory, fill it with ads, and receive revenue.

STW: Search the Web

STW is a general instruction or suggestion to use a search engine to find specific information, reflecting the ubiquity and utility of search engines.

SVG: Scalable Vector Graphic

SVG is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation, widely used on the web.

SWL: SiteWide Link

SiteWide Links are links that appear on multiple pages of the same website, often in the header, footer, or sidebar. They can impact SEO and user navigation.

TBPR: Toolbar PageRank

TBPR was a feature in Google's Toolbar that showed a representation of a page's PageRank, a measure of that page's importance in Google's algorithm.

TF: Trust Flow

Trust Flow is a metric by Majestic SEO that measures the trustworthiness of a website based on the quality of backlinks pointing to it.

TF-IDF: Term Frequency-inverse Document Frequency

TF-IDF is a numerical statistic used to reflect how important a word is to a document in a collection or corpus, commonly used in search engine optimization.

TLD: Top Level Domain

TLD refers to the last segment of a domain name, such as .com, .org, .net. It's important in SEO and branding for defining the scope and audience of a website.

TLP: Top Level Page

TLPs are the main pages of a website, typically the homepage and main category pages. They are crucial for site structure and user navigation.

ToS: Terms of Service

ToS are the legal agreements between a service provider and a person who wants to use that service. They outline the rules and guidelines of using the service.

TR: Trust Rank

Trust Rank is a link analysis technique to separate useful webpages from spam and predict trustworthiness based on the concept of "web of trust."

TTF: Topical Trust Flow

Topical Trust Flow categorizes the internet into various topics and measures the trustworthiness of a site within these specific topics.

UA: Universal Analytics

Universal Analytics was the previous version of Google Analytics, providing comprehensive web analytics to track and report website traffic.

UCD: User-centric Design

UCD is a design philosophy and a process in which the needs, wants, and limitations of end users of a product, service, or process are given extensive attention at each stage of the design process.

UI: User Interface

UI refers to the means by which the user and a computer system interact, particularly the use of input devices and software.

UR: Url Ranking

URL Ranking is a metric that assesses the strength and authority of a specific webpage's URL, influencing its potential to rank in search results.

URL: Uniform Resource Locator

A URL is the address of a resource on the Internet. It's a fundamental concept in web navigation, enabling users to access any site or page online.

USP: Unique Selling Point

A USP is a factor that differentiates a product from its competitors, such as the lowest cost, the highest quality, or the first-ever product of its kind.

UTM: Urchin Tracking Module

UTM parameters are used in URLs to track the effectiveness of online marketing campaigns across traffic sources and publishing media.

UV: Unique Visitor

A unique visitor is an individual user who has accessed a website within a specific time frame, a key metric in web analytics to measure site reach and audience size.

UX: User Experience

UX refers to a person's emotions and attitudes about using

a particular product, system, or service. It includes the practical, experiential, affective, meaningful, and valuable aspects of human-computer interaction.

VA: Virtual Assistant

A VA is a self-employed worker who specializes in offering administrative services to clients from a remote location, such as a home office.

VIPS: Visual-block Page Segmentation

VIPS is an algorithm for segmenting a web page into visual blocks, which is useful for understanding page layout and improving user experience.

VOD: Video on Demand

VOD is a media distribution system that allows users to access videos without a traditional video playback device and the constraints of a typical static broadcasting schedule.

W3C: World Wide Web Consortium

The W3C is an international community that develops open standards to ensure the long-term growth of the Web. Compliance with W3C standards is important for web compatibility and accessibility.

WH: Whitehat

Whitehat refers to the use of optimization strategies, techniques, and tactics that focus on a human audience opposed to search engines and completely follows search engine rules and policies.

WMT: Web Master Tools

Web Master Tools are services provided by search engines like Google and Bing to help webmasters monitor, maintain, and improve their sites' presence in search results.

WMW: Webmaster World

Webmaster World is an online community and forum for webmasters and digital marketers to discuss and share insights on SEO, web development, and online marketing.

WOMM: Word of Mouth Marketing

WOMM is a form of marketing where consumers influence each other in making product choice decisions. It's highly valuable for its authenticity and trust factor.

WP: WordPress

WordPress is a popular content management system (CMS) used to create and manage websites. It's known for its ease of use, flexibility, and large community support.

WWW: World Wide Web

The World Wide Web is a system of interlinked hypertext documents that are accessed via the Internet. It has transformed information sharing and communication globally.

XHTML: Extensible HyperText Markup Language

XHTML is part of the family of XML markup languages. It mirrors or extends versions of the widely used Hypertext Markup Language (HTML), the language in which Web pages are formulated.

XML: Extensible Markup Language

XML is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable, widely used for the representation of arbitrary data structures.

Y!: Yahoo!

Yahoo! is a web services provider, known for its web portal, search engine, and related services. It's one of the pioneers in the early internet era in navigation and web search.

Y2K: Year Two Thousand

Y2K refers to the year 2000, and the various computer bugs related to the formatting and storage of calendar data for dates beginning in the year 2000.

YoY: Year on year

YoY stands for Year-over-Year. It's a method of evaluating two or more measured events to compare the results at one time period with those from another period.

YT: YouTube

YouTube is a video sharing service where users can watch, like, share, comment, and upload their own videos. It's a significant platform for digital marketing and content distribution.

YTD: Year to Date

YTD refers to the period of time beginning the first day of the current calendar year or fiscal year up to the current date, used in finance and accounting.


A 301 redirect is a permanent redirect from one URL to another. It's used to redirect traffic from the old URL to the new URL and to pass on link equity.


A 302 redirect is a temporary redirect method. It's used when the original page is temporarily unavailable but will be back in the near future.


A 401 error indicates unauthorized access to a resource. It means that the page requires a login and password before you can access it.


A 403 error signifies forbidden access. It means the server understood the request but refuses to authorize it, often due to lack of permission to access the resource.


A 404 error indicates that the server could not find the requested webpage. It's a common error message indicating that the page you were trying to reach is not available.


A 503 error means the server is unavailable. It's a temporary condition which might be fixed by simply refreshing the page or coming back later when the server isn't as busy.

Conclusion: Keeping these terms at your fingertips will help you navigate and excel in the ever-changing digital landscape.

I hope you found this article helpful.
If you want us to do website design or SEO for you, click here.
6 FREE tips for your website sucess!
Download our free guide to understand how to evaluate the success of your website, plus tips that will help you make improvements today.
send me my guide