What is an exact match anchor?
An exact match anchor is a link whose visible text is exactly the keyword the destination page targets. If a page wants to rank for "backlink checker," a link to it reading "backlink checker" is an exact match anchor [1]. A link reading "this backlink checker tool" is a phrase match, and one reading "check your backlinks" is a partial match.
<!-- Exact match anchor for the keyword "running shoes" -->
<a href="https://example.com/running-shoes/">running shoes</a>Wikipedia defines the type as "an anchor that is used with a keyword that mirrors the page that is being linked to" [2]. Exact match anchors are one of several anchor categories, alongside branded anchors, naked URL anchors and generic anchors.
Why do exact match anchors matter for SEO?
Exact match anchors matter because Google reads anchor text as a description of the page being linked to. Google's own documentation says anchor text "tells people and Google something about the page you're linking to" [6]. Since the earliest days of Google, the words in links pointing at a page have helped decide what that page ranks for [2].
That made exact match anchors the most direct lever in link building. If many sites link to a page using the exact phrase, the page looks strongly relevant for that phrase. It also made them the easiest signal to fake, which is why Google turned against them.
Are exact match anchors bad for SEO?
Exact match anchors are not bad in themselves, but a pattern of exact match anchors on links from other sites is one of the clearest signs of manipulation Google looks for. Google's spam policies list "links with optimized anchor text in articles, guest posts, or press releases distributed on other sites" and "forum comments with optimized links in the post or signature" as link spam [3].
The risk depends on where the link sits and who placed it:
| Situation | Risk |
|---|---|
| Your own internal link reads "running shoes" and points to your running shoes page | Low. Google asks for descriptive link text on your own site [6] |
| A journalist links your product name, which happens to be the keyword | Low. The link was editorially chosen |
| Dozens of guest posts link your money page with the same commercial phrase | High. This is the pattern Google's policy describes [3] |
Search Insider sees this internal versus external split skipped in most guides, which warn against exact match anchors in general. Google's link spam policy is about links placed on other sites to manipulate ranking [3]. Its link best practices page, meanwhile, recommends anchor text that is "descriptive, reasonably concise, and relevant," with examples such as "list of cheese types" [6]. On your own site, an exact match anchor is often simply good anchor text.
When did exact match anchors become risky?
Exact match anchors became risky with Google's Penguin update on April 24, 2012 [5]. Before that, anchor text manipulation had been a known problem for more than a decade, and Google had already reduced the effect of coordinated anchor campaigns in January 2007 [4].
2001: Google bombing gets a name
Adam Mathes coined the term "Google bombing" on April 6, 2001, after a group of bloggers linked the phrase "talentless hack" to a friend's website until it ranked for it [4]. The best known example, "miserable failure," pointed at President George W. Bush's official biography [4]. Each of these was an exact match anchor campaign aimed at a page that had none of the words on it.
2007: Google defuses Google bombs
By January 2007, Google had changed its algorithm so that searches for previously bombed phrases returned commentary about the tactic instead of the targeted pages [4][2].
2012: Penguin targets manipulative links
Google launched Penguin on April 24, 2012, against link schemes and manipulative links, affecting about 3.1% of queries [5]. Anchor text was one of Penguin's primary targets, and sites that had been "overly-aggressive with their exact-match anchor text links saw their rankings tank overnight" [1]. Google said at the time that it would change the way it handled anchor text [2].
2016: Penguin runs in real time
On September 23, 2016, Penguin became part of Google's core algorithm and started running in real time [5]. Since then, the effect of manipulative anchor patterns is assessed continuously rather than in occasional updates.
Do exact match anchors still help rankings?
Exact match anchors still show a measurable but weak link to rankings. Ahrefs studied 384,614 pages ranking for 19,840 keywords and found an average Spearman correlation of 0.1436 between exact match anchors and ranking position, which it called a "relatively weak correlation" [1]. Phrase match anchors scored 0.1057 [1]. A separate 2016 study of 16,000 keywords cited on Wikipedia reported that exact and partial match anchors still correlated strongly with rankings [2].
Correlation is not causation in either study. Pages that rank well attract more links of every kind, including links that happen to use the keyword. Search Insider's own ranking study on year-stamped titles deals with the same problem: a factor can line up with rankings without causing them.
The more useful finding in the Ahrefs data is how rare exact match anchors are. The median percentage of exact match anchors was zero at every ranking position [1]. Most pages that rank well have no exact match anchors at all.
What is the 1 to 5% exact match anchor rule?
The 1 to 5% rule is a widely repeated piece of SEO advice that says exact match anchors should make up no more than about 1% to 5% of a page's backlinks. It does not come from Google. Ahrefs reports that "most SEOs" recommend a figure in that range, shown in an example from another blog rather than its own guidance [1].
Search Insider found no Google document that gives any safe percentage. Google's spam policies describe the intent behind a link, not a ratio [3]. Ahrefs' own advice is blunt: "Don't try to manipulate your anchor text ratios at all" [1]. A profile that stays under 5% because someone placed exactly enough keyword links to stay under 5% is still a manipulated profile.
What is the difference between exact match, phrase match and partial match anchors?
Exact match, phrase match and partial match anchors differ in how closely the link text copies the target keyword. For the keyword "backlink checker":
| Anchor type | Example anchor text | Rule |
|---|---|---|
| Exact match | backlink checker | The keyword, nothing else [1] |
| Phrase match | free backlink checker tool | The keyword inside a longer phrase [1] |
| Partial match | checker for backlinks | All the words, not as an exact phrase [1] |
| Branded | Ahrefs | The brand name [1] |
Exact match anchors are also different from anchor text dilution, which describes how a large number of branded, URL and generic anchors reduces the share of keyword anchors in a profile.
How do you check your exact match anchor ratio?
To check your exact match anchor ratio, export the anchor text report for your page or domain from a backlink tool, mark every anchor that is exactly your target keyword, and divide those links by the total. Count referring domains rather than raw links, because one site with a sitewide footer link can produce thousands of identical anchors.
Read the result against the context, not against a target percentage. A brand whose name is the keyword will show a high exact match share for entirely natural reasons. A local business called "Denver Plumbing" collects "Denver Plumbing" anchors every time it is mentioned.
What should you do about too many exact match anchors?
If a large share of your backlinks use exact match anchors that you or a vendor placed, stop adding more and review where they came from. Links that were bought, exchanged or placed in guest posts with optimized anchors fit Google's description of link spam [3]. If Google has issued a manual action for unnatural links, its recommended steps are to remove the links where possible, disavow those you cannot remove, and then request a review [7].
Going forward, let anchors follow how people naturally refer to you. Use exact match anchors freely on your own internal links, where they help readers and Google, and leave external anchor text to the sites that choose to link.