What is off-page SEO?
Off-page SEO is everything that happens away from your own website and still changes how search engines and AI assistants rank and describe it. Links are the largest part, but not the only one.
In short
- Off-page SEO covers the signals that come from other websites, such as backlinks, brand mentions, reviews and citations.
- On-page SEO is what you write and technical SEO is how the site works. Off-page SEO is what the rest of the web says about you.
- Links act twice in Google, according to a court exhibit from the US antitrust case. Anchor text feeds relevance, and PageRank feeds trust in the site.
- Brand mentions matter more for AI assistants than raw link counts, according to a 2025 Ahrefs study of 75,000 brands.
Off-page SEO is the work of earning signals from places you do not control. A search engine can read your pages to learn what they are about. To decide whether to trust them, it looks at what other sites do: who links to you, how they describe you, and whether people search for you by name.
How it differs from on-page and technical SEO
The three parts answer three different questions.
| Part | The question it answers | Examples |
|---|---|---|
| On-page SEO | What is this page about? | Titles, headings, copy, internal links |
| Technical SEO | Can the page be crawled and shown? | Speed, indexing, structured data |
| Off-page SEO | Should anyone trust this site? | Backlinks, brand mentions, reviews, citations |
You control the first two completely. Off-page is different because someone else has to act: a journalist, a publisher, a customer or a partner.
What counts as an off-page signal
Backlinks. A link from another website to yours. This is still the most studied and most traded off-page signal.
Referring domains. The number of separate websites that link to you. Ten links from ten sites say more than ten links from one.
Brand mentions. Your name in an article, a forum thread or a video, with or without a link. A Google patent on “implied links” describes counting these alongside real links.
Citations. Listings of a business name, address and phone number in directories. These matter mostly for local search.
Reviews and reputation. Ratings on third-party platforms. Google’s quality rater guidelines are reported to tell raters to research what independent sources say about a site.
Digital PR. Coverage earned by giving journalists something worth reporting, such as data, expert comment or a story.
How search engines use links
A link does two jobs. An exhibit from the US antitrust case against Google, reported in May 2025, describes PageRank as a signal about distance from known good sources, which feeds a site quality score. The same exhibit lists anchors, the clickable words of a link, as one of three core relevance signals alongside the page body and user clicks.
So a link tells Google two separate things: that the linking site vouches for you, and what the linked page is about.
Why it decides competitive markets
When every serious competitor has good content and a fast site, on-page and technical work stop being a difference. What is left is trust, and trust comes from outside. That is why link budgets are largest in the hardest markets, and why SEOs put the acceptable price of a quality link at about $509 on average, according to a March 2026 survey of 518 SEOs by Editorial.link.
Off-page SEO and AI assistants
AI assistants pick sources differently from the classic results page. In Ahrefs’ study of 75,000 brands, published in December 2025, mentions of a brand across the web correlated far more strongly with visibility in AI answers than Domain Rating did. The practical effect is that coverage with no link, which link builders used to count as a failure, now has value of its own.
Where to go next
Read how search engines evaluate links for the detail on authority, relevance and trust, then use the tactics chart to see what each way of earning links costs and risks.
Common questions
Is off-page SEO the same as link building?
No. Link building is the largest part of off-page SEO, but off-page also covers brand mentions without a link, reviews, business listings and coverage in the press.
Do backlinks still matter in 2026?
Yes, but less than a decade ago. An Ahrefs study of one million keywords published in January 2025 found a correlation of 0.255 between referring domains and rankings, down slightly from 2019. The effect is strongest for local searches.
Can I rank without off-page SEO?
In markets with little competition, yes. In competitive markets such as gambling, finance, law and software, the sites on page one almost always have stronger off-page signals than the sites below them.
