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200+ SEO Abbreviations and Acronyms You Should Know


I understand that the abundance of acronyms in the industry can be daunting for newcomers or those considering delving into the world of SEO. I truly get it!

Unfortunately, you will have to learn them; there is no way around it. But take heart; once you start, most acronyms are pretty straightforward.

I’ve been doing SEO since 2009, and I sat down with some of the best SEOs to develop a list of over 200 SEO abbreviations and acronyms.

Some acronyms will be used in technical or onsite SEO; others might be related to managing a client’s SEO business, and the list is pretty extensive.

As I go about our daily SEO lives and come across more SEO acronyms, I’ll keep adding them to the list, making this page the most exhaustive and up-to-date list of SEO acronyms online.

Quick Summary

  • SEO is the process of optimizing a website to improve its visibility and rankings on search engine results pages. It involves making the website more attractive to search engines through content, structure, and technical optimizations.
  • There are 7 types of SEO: Organic SEO, Technical SEO, Local SEO, E-commerce SEO, International SEO, Mobile SEO, Voice Search SEO.
  • The average SEO agency typically charges a monthly retainer of $1000-$2000 per month, while a freelancer might work at a rate of $75 to $125 per hour.

Types of SEO

Search Engine Optimization (SEO) is a strategy for enhancing a website to rank in search listings on search engines like Google and Bing. There are several types of SEO, each with its own specific focus and objectives.

Organic SEO

Organic SEO refers to the process of optimizing a website’s content, structure, and other elements to improve its ranking in organic search results pages.

This includes the natural use of focus keywords and semantic keywords on-page, supported by quality content and an organized structure for indexing.

Technical SEO

Technical SEO involves optimizing the technical aspects of a website, such as site speed, mobile responsiveness, and crawlability, to improve its performance and ranking in search engine results pages.

This includes optimizing functionality, shortening load time, and addressing search engines crawl errors like broken links, missing H1 tags, missing metadata, and misuse of alt tags in images.

Local SEO

Local SEO focuses on improving the visibility and ranking of a business in local search results, such as Google Maps. This is achieved by optimizing the business’s online presence and location-based information.

An optimized Google My Business profile can increase a business’s chances of showing up in Google’s Local Pack, Local Finder, Google Maps, and organic rankings in general.

E-commerce SEO

E-commerce SEO functions to optimize online stores to improve their visibility, traffic, and conversion rates. This involves optimizing product pages, site structure, and other e-commerce-specific elements.

International SEO

International SEO involves optimizing a website to rank well in search engines across multiple countries or languages. This often involves creating content that is tailored to specific regions or languages.

Mobile SEO

Mobile SEO focuses on optimizing a website for mobile devices. This includes ensuring that the website loads quickly, is easy to navigate, and has mobile-friendly design elements.

Voice Search SEO

With the growing popularity of voice search assistants like Siri and Alexa, Voice Search SEO focuses on optimizing a website’s content and structure to rank well in voice search results.

Each of these types of SEO work in conjunction for your entire online presence. Whether you’re a seasoned SEO professional or just getting started, understanding these types of SEO is essential to improving your website’s visibility and attracting more organic traffic.


AJAX Asynchronous Javascript and XML
AOV Average order value
API   Application Program Interface
ARAugmented reality
AS      Article Submission
ASPApplication service provider
ASP.NETA program that runs insidee IIS which allows web programmers to build dynamic websites on Microsoft servers.
ATDAgency trading desk


B2BBusiness to Business
Business to Consumer
BHWBlackhat world
BRBounce rate


ccTLDcountry code top-level domain
CAPTCHACompletely Automated Public Turing Test to Tell Computers and Humans Apart
CFCitation flow
CGI      Common Gateway Interface
CLVCustomer lifetime value
CMS      Content Management System
COA      Cost of Acquisition
CPA      Cost Per Acquisition
CPC Cost per Click
CPICost Per Impression
CPL     Cost Per Lead
CPM      Cost Per Thousands
CPO     Cost Per Order
CPV      Cost Per View
CRConversion rate
CRMCustomer relationship management
CRO      Conversion Rate Optimization
CSE      Comparison Shopping Engine/Custom Search Engine
CSS      Cascading Style Sheets
CTA      Call to Action
CTRClick Through Rate
CX Customer experience





Data Center
DFO      Data Feed Optimization
DKI      Dynamic Keyword Insertion
DLP      Directory Listings Page
DLR     Deep Link Ratio
DMCA   Digital Millennium Copyright Act
DMOZ     Directory – Mozilla
DMPData management platform
DNSDomain name system
DRDomain Ranking
DRDirect response
DS       Directory Results Web Pages
DRPs     Directory Submission
DSPDemand-side platform
DSRP     Directory Search Results Page




ECPC     Enhanced Cost Per Click
EMD     Exact Match Domain
EPCEarnings per click
EPMEarnings per thousand
ERDEducation referring domains
ESPEmail service provider




Facebook Markup Language
FCP     Frequently Cached Page
FFA    Free For All Pages
FTP File transfer protocol





Google Plus

GAGoogle Analytics
GAP     Google Advertising Professional
GAS     Guaranteed Article Submission
GDS    Guaranteed Directory Submission
GIS     Google Image Search
GIY     Google It Yourself
GRDGovernment referring domains
GSCGoogle Search Console
GTM     Google Tag Manager
GUIGraphical user interface
GWT    Google Webmaster Tools
GYM     Google Yahoo MSN




H1Level 1 heading markup
Level 2 heading markup
H3Level 3 heading markup
H4Level 4 heading markup
H5Level 5 heading markup
HrefHypertext Reference
HTML   Hypertext Markup Language
HTTP    HyperText Transfer Protocol
HTTPS   Hypertext Transfer Protocol Secure




IBL   In Bound Links

IDF    Inverse Document Frequency
IFTTTIf this than that
IM      Internet Marketing
IP      Internet Protocol (Address)
ISP    Internet Service Providers




JGIJust Google It




LB     Link Building
LPO     Landing Page Optimization
LSA     Latent Semantic Analysis
LSI     Latent Semantic Indexing
LTKWLong Tail keyword
LTVLifetime value





Moderately Cached Page
MFA     Made For Advertising
MQLMarketing qualified Lead
MTO     Meta Tags Optimization
MVTMultivariate testing




NAPName Address Phone Number
NSEO    Negative SEO





Outbound Link
ODP     Open Directory Project
ORM     Online Reputation Management
OSOperating system (sometimes this is used for 'open source')
OSE     Open Site Explorer
OWBL   One Way Back Link





Paid For Placement
PBNPrivate Blog Network
PDF     Portable Document Format
PFI     Pay For Inclusion
PFL     Paid For Listings
PFP     Pay for Performance
PHP    Hypertext Preprocessor
PPCPay Per Click
PPCSE Pay Per Click Search Engine
PPL  Pay Per Lead
PPR    Pay Per Rank
PPSPay Per Sale
PRPress Release
PR    Page Rank
PV Pageviews




QAQuality assurance
QSQuality score




RDReferring Domains
Request for information
RIRegular index
RMReputation management
ROI     Return on Investment
RONRun of network
ROR Ruby on Rails 
ROSRun of site
RSS     Really Simple Syndication or Rich Site Summary
RTDReal time data
RTL     Regional Long Tail




SaaSSoftware as a service

Social Bookmarking
SDSemantic Distance
SE      Search Engine
SEM     Search Engine Marketing
SEOSearch engine optimisation
SEOs    Search Engine Optimization Performance
SEP     Search Engine Positioning
SER     Search Engine Ranking
SERM    Search Engine Results Management
SERP    Search Engine Results Page
SES     Search Engine Strategies
SEW     Search Engine Watch
SI      Supplemental Index
SLAService level agreement
SMB    Small and Medium Businesses
SMEs   Small And Medium-Sized Enterprises
SMM     Social Media Marketing
SMOSocial media optimisation
SMPSocial media platform
SNSSocial Networking Service
SQLSales qualified lead
SRM     Search Reputation Management
SSI     Server Side Includes
SSL Secure Sockets Layer
SSP Supply-side platform
STW     Search The Web
SWL     SiteWide Link




Toolbar PageRank
Trust Flow
TF-IDFTerm frequency-inverse document frequency
TLD Top level domain
TLP Top Level Page
TOSTerms of service
TRTrust Rank
TSETSB  The Search Engine That Spam Built
TTFTopical Trust Flow




User-centric design
UI User interface
UR Url Ranking
URL     Uniform Resource Locator
USPUnique Selling Point
USPUnique selling proposition
UTMUrchin Tracking Module
UVUnique visitor
UX User experience





Virtual Assistant

VIPS    Visual-block Page Segmentation
VODVideo on demand




W3C     World Wide Web Consortium
WMT Web Master Tools
WMW     Webmaster World
WOMM Word of mouth marketing
WWWWorld Wide Web
WYSIWYGWhat you see is what you get




Extensible HyperText Markup Language
XML     Extensible Markup Language




Y2K     Year Two Thousand
YOY Year on year
YTDYear to date




Resource Moved Permanently (A permanent redirect code to a new domain or location)
302Resource Moved Temporarily (A temporary redirect code to a new domain or location)
401Unauthorized Access to Resource (requires authentication)
403Forbidden (Access not allowed (server understood the request but refuses to fulfill it))
404Resource (page) not found
503The server is unavailable (usually a temporary response due to overloading or maintenance)


What Does SEO Mean in Marketing?

SEO stands for Search Engine Optimization, which defines your actions to ensure your website or web page comes up high in search results for a given keyword.

What Is SEO Business Term?

SEO refers to the techniques and methods used to increase website traffic by improving one’s position on search engines (Google, YouTube, etc).

What Does the Abbreviation SEO Represent?

SEO is the acronym for Search Engine Optimization.

What Is the Difference Between SEO and SEM?

The difference between SEO and SEM is that SEO is a subset of Search Engine Marketing as a whole. SEM extends towards other search engines traffic generation forms, such as paid advertisement.

How Much Does SEO Cost?

The average SEO agency typically charges a monthly retainer of $1000-$2000 per month, while a freelancer might work at a rate of $75 to $125 per hour.



Article by

Matt Diggity

Matt is the founder of Diggity Marketing, LeadSpring, The Search Initiative, The Affiliate Lab, and the Chiang Mai SEO Conference. He actually does SEO too.


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"One of the most effective SEOs I've ever met"- Cyrus Sheppard

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