145+ definitions for the SEO, link building, and SaaS marketing terms you actually run into — written by practitioners who scale B2B SaaS organic growth every day.
ARR is the annualized value of a SaaS company's recurring subscription revenue — MRR × 12.
ABM is a B2B strategy that targets a defined list of high-value accounts with personalized, multi-channel marketing — treating each account as a market of one.
Activation rate is the percentage of new users who reach a key 'aha moment' in your product, indicating early engagement and likely retention.
An alternatives page targets prospects searching for replacements to a specific competitor (e.g., 'HubSpot alternatives'), positioning your product as a strong option.
BERT (Bidirectional Encoder Representations from Transformers) is a Google neural-language model used to better understand the context of words in a query.
A backlink is an inbound hyperlink from one website to another, used by search engines as a vote of confidence in the destination page.
A backlink profile is the full set of inbound links pointing at your domain, including their sources, quality, anchor distribution, and growth pattern.
Black Hat SEO refers to practices that violate search engine guidelines to manipulate rankings — such as cloaking, PBNs, paid link schemes, and keyword stuffing.
Bottom-of-funnel (BOFU) refers to prospects close to purchase — the stage where commercial and transactional content drives conversion.
Bounce rate is the percentage of single-page sessions where a user lands on a page and leaves without interacting further.
A brand mention is any reference to your brand name on the web, with or without a hyperlink.
CAC is the total sales and marketing spend required to acquire one paying customer.
CAC Payback Period is the number of months it takes for a customer's gross margin to repay the cost of acquiring them.
CLS is a Core Web Vitals metric measuring unexpected layout shifts that occur as a page loads, scored from 0 (perfect) to higher (worse).
A canonical tag (<link rel='canonical'>) tells search engines which version of a page is the preferred, indexable URL when duplicate or near-duplicate versions exist.
Churn rate is the percentage of customers (logo churn) or revenue (revenue churn) lost in a given period.
A citation is a mention of your business name, address, or phone number (NAP) on a third-party site, often without a hyperlink — important primarily for local SEO.
Citation Flow is Majestic's 0–100 metric measuring the quantity of backlinks pointing at a site, regardless of their quality.
Click-Through Rate (CTR) is the percentage of impressions on a search result that turn into clicks.
Cloaking is showing different content to search engines and users — a black-hat practice that violates Google's guidelines.
Co-citation occurs when two websites are mentioned together by a third site, even without a direct hyperlink between them.
Co-occurrence is the appearance of your brand or page near specific topical keywords across multiple sites, signaling relevance to those topics.
Cold email outreach is sending personalized, unsolicited emails to prospects you have no prior relationship with, often for link building or business development.
Commercial intent (or commercial-investigation intent) is when a user is researching purchase options — comparing products, reading reviews, or evaluating alternatives.
A comparison page is a landing page that compares your product to a competitor (e.g., 'HubSpot vs Salesforce'), targeting prospects in active evaluation mode.
A content cluster (or topic cluster) is a group of interlinked articles built around a central pillar page covering a broad topic in depth.
Content gap analysis is the process of identifying keywords or topics where competitors rank but you don't — surfacing high-leverage content opportunities.
Content marketing is the practice of creating and distributing valuable, relevant content to attract, engage, and convert a target audience.
A contextual link is a backlink placed inside the body content of an article, surrounded by topically relevant text — as opposed to footer, sidebar, or author-bio links.
Core Web Vitals are a set of Google-defined user-experience metrics measuring loading performance (LCP), interactivity (INP), and visual stability (CLS).
Crawl budget is the number of pages a search engine bot will crawl on your site within a given period, based on crawl rate limit and crawl demand.
Demand capture is the marketing discipline of converting existing buyer intent into pipeline — through bottom-of-funnel SEO, paid search, comparison pages, and retargeting.
Demand generation is the marketing discipline of creating awareness and interest in your product — building demand that doesn't yet exist.
Digital PR is the practice of earning brand coverage and backlinks from journalists and publications by pitching newsworthy stories, data, or expert commentary.
A disavow file is a plain-text file submitted to Google asking the search engine to ignore specific backlinks pointing at your site.
A dofollow link is a standard hyperlink that passes PageRank and ranking signals from the source page to the destination page.
Domain Authority (DA) is Moz's 0–100 score predicting how well a website will rank in search results based on its backlink profile.
Domain Rating (DR) is Ahrefs' 0–100 score measuring the strength of a website's backlink profile relative to others in its index.
Dwell time is the amount of time a user spends on a page after clicking from search before returning to the SERP.
E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) is Google's framework for evaluating content quality, especially for YMYL topics.
An editorial link is a backlink earned naturally because a writer chose to reference your content — without any exchange, payment, or formal pitch.
Email templates are reusable outreach message structures that scale link building or sales campaigns while preserving personalization slots.
A featured snippet is the boxed answer Google shows at the top of search results, pulling content directly from a ranking page.
A footer link is a backlink placed in the footer area of a website, often appearing sitewide across all pages.
Foundational links are baseline, easy-to-acquire backlinks (business directories, social profiles, citations) that make a brand's link profile look natural.
A free trial is a time-limited (typically 7–30 day) opportunity for prospects to use a paid product before being asked to subscribe.
Freemium is a pricing model where a basic version of a product is free forever, with paid upgrades for advanced features, higher usage limits, or premium support.
A Google algorithm update is a change Google makes to its ranking systems — sometimes minor and continuous, sometimes named 'core updates' rolled out periodically.
Grey Hat SEO refers to tactics that occupy the ambiguous middle ground between white hat and black hat — bending guidelines without overtly breaking them.
A guest post is an article you write and publish on someone else's website, usually in exchange for a contextual backlink to your own site.
HARO (Help A Reporter Out) is a service that connects journalists with expert sources, often resulting in backlinks from major publications.
The Helpful Content Update is a Google algorithm system that demotes sites producing content primarily made for search engines rather than people.
Hreflang is an HTML attribute that tells search engines which language and region a page targets, so the right version surfaces for the right audience.
INP is a Core Web Vitals metric measuring how quickly a page responds to user interactions, replacing First Input Delay (FID) in 2024.
An image link is a hyperlink where the clickable element is an image instead of text — search engines read its alt attribute as the anchor.
An inbound link is a hyperlink from an external website pointing to a page on your site — also called a backlink.
Inbound marketing is a strategy that attracts customers through helpful content and experiences they actively seek — rather than interrupting them with outbound messaging.
Indexing is the process by which search engines add discovered pages to their searchable index, making them eligible to rank for queries.
Informational intent is when a user is searching to learn something — answers, explanations, definitions, or how-tos.
An integration page is a dedicated landing page describing how your product integrates with a specific third-party tool (e.g., '[Your Product] + Slack').
An internal link is a hyperlink from one page on your website to another page on the same domain.
Internal linking is the practice of connecting pages on the same website through hyperlinks, helping users navigate and search engines understand site structure.
A keyword is the word or phrase users type into a search engine — and the term SEOs target with content to rank for it.
Keyword Difficulty (KD) is a tool-specific 0–100 score estimating how hard it will be to rank in the top 10 for a given keyword.
Keyword research is the process of finding, evaluating, and prioritizing search terms users actually type, to inform content and SEO strategy.
Keyword stuffing is the outdated practice of repeating target keywords excessively across a page in an attempt to manipulate rankings.
A Knowledge Panel is the information box Google shows on the right side of search results for known entities — people, companies, products, places.
LCP is a Core Web Vitals metric measuring how long it takes for the largest visible element above the fold to render.
LTV (Customer Lifetime Value) is the total revenue a SaaS company expects to earn from a single customer over the entire relationship.
A link audit is a systematic review of a website's backlink profile to identify strengths, weaknesses, and toxic risks.
Link bait is content designed specifically to attract a large number of backlinks — usually through originality, controversy, data, or utility.
Link equity is the SEO value passed from one page to another through hyperlinks — sometimes informally called 'link juice'.
Link juice is the informal SEO term for the ranking authority a hyperlink passes from one page to another.
A link profile is the complete picture of all the backlinks pointing to a website, including anchor text distribution, source quality, and link types.
Link reclamation is the process of recovering lost backlinks or converting unlinked brand mentions into proper hyperlinks.
Link velocity is the rate at which a website acquires new backlinks over time.
A linkable asset is a piece of content — a tool, study, statistic, calculator, or visual — built specifically to attract backlinks at scale.
A linkable hub is a long-form, frequently updated resource page (such as a guide, statistics page, or glossary) built to attract backlinks over years.
Link building outreach KPIs are the metrics used to measure campaign effectiveness, such as reply rate, placement rate, average DR, and cost per link.
A long-tail keyword is a longer, more specific search phrase — typically 3+ words — with lower search volume but higher conversion intent.
MRR is the predictable monthly revenue a SaaS business earns from active subscriptions — the most-tracked top-line SaaS metric.
A manual action is a penalty applied by a human reviewer at Google when a site is found to violate Google's webmaster guidelines.
An MQL is a lead that marketing has scored as likely to become a customer, based on demographic fit and engagement with marketing content.
A meta description is the HTML element that summarizes a webpage's content, often displayed as the snippet under the title in search results.
A meta title (or title tag) is the HTML element that defines the title of a webpage, shown as the clickable headline in search results and browser tabs.
Middle-of-funnel (MOFU) refers to prospects evaluating solutions — researching categories, narrowing vendors, and consuming considered content.
Mobile-first indexing is Google's practice of primarily using the mobile version of a site's content for indexing and ranking.
Navigational intent is when a user is trying to reach a specific website or page — usually a brand they already know.
Net Revenue Retention (NRR) measures the percentage of recurring revenue retained from existing customers over a period, including expansion, contraction, and churn.
A niche edit (also called a link insertion) is a backlink added inside an existing, already-indexed article on a third-party site — instead of placing a new guest post.
A nofollow link uses the rel='nofollow' attribute to tell search engines not to pass ranking authority through that link.
Off-page SEO is the set of activities outside your website that influence rankings — chiefly backlinks, brand mentions, and digital PR.
On-page SEO is the practice of optimizing individual webpage content and HTML elements to rank higher for target keywords.
An organic keyword is a search term for which a page on your site appears in the unpaid search results.
Organic traffic is visitors who land on your site by clicking unpaid search engine results.
An outbound link (or external link) is a hyperlink from your website to a page on another website.
Outbound marketing is a strategy that proactively pushes messages toward prospects — through cold email, LinkedIn outreach, paid ads, cold calls, and direct mail.
A Private Blog Network (PBN) is a network of websites built or acquired solely to link back to a target site and manipulate its rankings.
Page Authority (PA) is Moz's 0–100 score predicting how well a specific page will rank in search results.
Page speed is how fast a webpage loads and becomes interactive — a key user experience signal and a confirmed (modest) Google ranking factor.
Google Panda was a 2011 algorithm update targeting low-quality, thin, and duplicate content — eventually absorbed into Google's core ranking systems.
Google Penguin was a 2012 algorithm update targeting webspam and manipulative link building, eventually rolled into Google's core algorithm in 2016.
People Also Ask (PAA) is a SERP feature showing related questions and expandable answers that users frequently ask alongside the original query.
A pillar page is a long-form, comprehensive resource covering a broad topic, designed to rank for high-value head terms and centralize topical authority.
Pillow links are low-risk, brand-only backlinks (social profiles, business directories, brand mentions) used to make a backlink profile look more natural.
A PQL is a user who has experienced enough value in a free or trial product to be a strong candidate for paid conversion.
Product-Led Growth (PLG) is a go-to-market strategy where the product itself drives user acquisition, conversion, and expansion — typically through free trials, freemium, or self-serve signup.
Programmatic SEO is the practice of producing hundreds or thousands of targeted landing pages from a structured data set, capturing long-tail organic traffic at scale.
RankBrain is a machine-learning algorithm Google uses to better understand the meaning behind queries — especially novel or ambiguous ones.
A reciprocal link is a backlink between two sites that have agreed to link to each other — Site A → Site B and Site B → Site A.
A redirect chain is when one URL redirects to another, which redirects to another — creating multiple hops between the original request and the final destination.
A referring domain is any unique website that points at least one backlink to your site.
Resource page link building is the tactic of getting your content added to curated 'best of' or resource list pages on authoritative websites.
A rich result is a search result enhanced with visual elements like ratings, images, prices, FAQ accordions, or videos — typically powered by structured data.
Robots.txt is a plain-text file in your site's root that tells search engine crawlers which URLs they may or may not crawl.
SEO (Search Engine Optimization) is the practice of improving a website to rank higher in organic search results and earn more relevant, unpaid traffic.
A SERP (Search Engine Results Page) is the page Google shows in response to a user's query, including organic results, ads, and rich features.
A SERP feature is any non-standard element on a search results page beyond the traditional blue links — featured snippets, PAA, knowledge panels, videos, images, ads, AI Overviews, and more.
AI Overviews (formerly SGE — Search Generative Experience) is Google's AI-generated summary at the top of search results, synthesizing answers from multiple sources.
SILO structure is an information architecture approach that organizes a site into tightly themed sections (silos), with internal links staying primarily within each silo.
SaaS (Software as a Service) is a software delivery model where applications are hosted by the vendor and accessed by customers over the internet, typically on a subscription basis.
An SQL is a lead that sales has accepted as worth pursuing, typically after qualifying budget, authority, need, and timeline (BANT) or equivalent criteria.
Schema markup is structured-data code (usually JSON-LD) added to a page to help search engines understand its content and unlock rich results.
Search intent is the underlying goal a user has when typing a query — informational, navigational, commercial, or transactional.
A short-tail keyword (or 'head term') is a 1–2 word query with very high search volume but high competition and broad intent.
A sitewide link is a backlink that appears on every page of a website — typically in the footer, sidebar, or header navigation.
The Skyscraper Technique is a link-building method where you find a high-performing piece of content, create something significantly better, then ask its backlinkers to link to your version instead.
Spam Score is Moz's 0–17 metric estimating how likely a site is to be penalized or considered low-quality based on common spam signals.
A statistics page is a long-form resource that compiles credible, citable data points on a specific topic — designed to attract editorial backlinks from journalists and bloggers.
Structured data is standardized metadata (typically based on Schema.org) that describes a page's content in a machine-readable format.
Technical SEO is the practice of optimizing a website's infrastructure — crawling, indexing, performance, and architecture — to improve search visibility.
A three-way (or 'ABC') link exchange is when three sites cross-link in a circle to disguise reciprocity — A links to B, B links to C, C links to A.
Tiered link building is a strategy where lower-quality links (Tier 2, Tier 3) are pointed at higher-quality links (Tier 1) to boost their authority.
Top-of-funnel (TOFU) refers to early-stage prospects discovering a problem or topic — the awareness stage of the buyer journey.
Topical authority is a site's recognized expertise on a specific subject, built through deep, interlinked content coverage and relevant backlinks.
A toxic backlink is a link from a low-quality, spammy, or manipulative source that can harm your site's rankings or trigger a manual penalty.
Transactional intent is when a user is ready to take an action — buy, sign up, download, request a demo, or otherwise convert.
Trust Flow is Majestic's 0–100 metric measuring the quality and trustworthiness of a website's backlink profile.
URL Rating (UR) is Ahrefs' 0–100 page-level metric estimating the backlink strength of a specific URL.
An unlinked mention is a reference to your brand on a third-party page that does not include a hyperlink back to your site.
A use case page is a landing page describing how a specific persona, industry, or job function uses your product to solve a particular problem.