Anchor Text

Definition

Anchor text is the clickable text portion displayed on a hyperlink.

<a href="https://example.com/keyword-research">Complete Guide to Keyword Research</a>

In this case, "Complete Guide to Keyword Research" is the anchor text. Google reads this text to understand that the destination page (/keyword-research) is about "keyword research."

Anchor text was one of Google's original core algorithm elements along with PageRank and remains an important link signal.

Summary

Anchor text strategy: Use descriptive anchors for internal links (specific text like "keyword research methods"). For external backlinks, natural diversity in anchor mix is ideal. Excessive exact-match keyword anchors risk Penguin penalty.

SEO Role of Anchor Text

Relevance Signal

Google understands destination page topics through anchor text. A page linked with anchor text "long-tail keyword strategy" receives relevance signals for that topic.

PageRank and Anchor Text

Google's original PageRank paper (1998) also stated the importance of anchor text. When links transfer authority, anchor text defines what topic that authority relates to. See Google PageRank for details.

Crawl Exploration Hint

Googlebot reads anchor text to predict page content before crawling linked pages. Descriptive anchors also help bots understand site structure.

7 Types of Anchor Text

1. Exact Match

Anchor exactly matching the target keyword.

<a href="/keyword-research">keyword research</a>

Strong relevance signal but excessive use appears manipulative, risking Penguin algorithm penalty.

2. Partial Match

Anchor partially containing the target keyword.

<a href="/keyword-research">effective keyword research methods</a>

More natural than exact match while sufficiently conveying relevance signals.

3. Branded

Using brand name as anchor.

<a href="https://example.com">Example</a>

Most common type in natural backlinks. Contributes to brand recognition but weak keyword relevance signal.

4. Naked URL

Using the URL itself as anchor.

<a href="https://example.com/keyword-research"
  >https://example.com/keyword-research</a
>

Keywords in URL convey weak relevance signals. Often appears in natural links.

5. Generic

Meaningless general text anchors.

<a href="/keyword-research">click here</a>
<a href="/keyword-research">read more</a>

No relevance signal. Inappropriate for accessibility but occurs in natural links.

6. Image

For image links, alt text serves as anchor text.

<a href="/keyword-research">
  <img src="guide.jpg" alt="Keyword research guide" />
</a>

See How to Write Image Alt Text for details.

7. LSI/Topic

Using synonyms or related topics of target keywords as anchors.

<a href="/keyword-research">search query analysis methods</a>

Natural and conveys topic relevance signals diversely.

Ideal Anchor Text Profile

Internal Link Anchors

Internal links are fully controllable and should be set strategically.

Recommended:

• Descriptive anchors including keywords
• Not too long (within 5–7 words)
• Reflect actual destination page content

<!-- Recommended -->
<a href="/long-tail-keywords">Long-tail keyword strategy guide</a>

<!-- Not recommended -->
<a href="/long-tail-keywords">here</a>
<a href="/long-tail-keywords"
  >long-tail keywords long-tail SEO long-tail strategy long-tail search</a
>

External Backlink Anchors (Natural Distribution)

External backlink anchors are hard to control, but natural distribution is a healthy signal.

Ideal backlink anchor profile example:

• Branded anchors: 30–40%
• Naked URL: 20–25%
• Partial match: 15–20%
• Generic ("here", "details"): 10–15%
• Exact match: 5–10%

Too high exact match ratio becomes unnatural link building signal.

Anchor Text and Penguin Algorithm

Google's 2012 Penguin algorithm targeted artificial anchor text manipulation. PBN and link purchase sites using excessive exact-match anchors were heavily penalized.

Penguin is now integrated into the core algorithm and operates in real time. Unnatural anchor profiles are continuously detected.

See Black Hat SEO for details.

Anchor Text Analysis Methods

Backlink Anchor Analysis with Ahrefs

In Ahrefs → Site Explorer → Anchors tab, verify external backlink anchor text distribution. Abnormally high specific anchors signal manipulative patterns. See Ahrefs for details.

Internal Link Anchor Audit

After Screaming Frog crawl, check internal link anchor report. Many generic anchors like "here", "click", "read more" indicate improvement opportunities.

Application in the Korean Market

Korean Anchor Text Characteristics

Korean content should use natural Korean expressions for anchor text.

<!-- Natural Korean anchors -->
<a href="/keyword-research">How to do keyword research</a>
<a href="/keyword-research">See detailed keyword research guide</a>

<!-- Awkward anchors -->
<a href="/keyword-research">keyword research</a>
<!-- Too short and dry -->

Internal Link Patterns on Korean Sites

Patterns linking with "Read more", "Related articles", and "Reference" are common in Korean content. Replacing some of these generic anchors with descriptive anchors is a good starting point for internal link improvement.

Frequently Asked Questions

Q. What exact match anchor percentage is safe?
A. There is no clear standard. Exact match under 10% of total backlink anchor profile with brand and naked URL as majority is natural. However, this varies by site size, industry, and link sources, so comparing with competitor anchor profiles is more practical.

Q. Do internal link anchor text changes show immediate effect?
A. Effects reflect after Googlebot re-crawls internal links. Typically weeks to months. Internal link anchor optimization should expect gradual improvement rather than immediate effect.

Q. How does anchor text work for image links?
A. When linking images, alt text serves as anchor text. Without alt text, it is equivalent to having no anchor text. To use image links for SEO, descriptive alt text must be included.

Q. When linking to the same URL multiple times on one page, which anchor applies?
A. Google is known to primarily use the anchor text of the first link to the same URL on a page. If the URL already exists in menu or navigation, descriptive anchors in body text for the same URL may have weak anchor signals. Use the most important anchor on the first link when possible.

Q. Does Google read anchor text on nofollow links?
A. nofollow links do not transfer link authority, but Google reads link information including anchor text. However, nofollow anchors provide much weaker signals than dofollow anchors.

Sources

• Page, L. & Brin, S. (1998). The Anatomy of a Large-Scale Hypertextual Web Search Engine. Stanford University.
• Google Search Central (2024). Links and link text. https://developers.google.com/search/docs/fundamentals/seo-starter-guide
• Ahrefs (2024). Anchor Text: A Data-Driven Guide. Ahrefs Blog.