Link Checker

Analyze all links in your HTML. Count internal and external links, check for nofollow tags, and audit anchor text.

How It Works

Paste your HTML or fetch a URL to extract and analyze all <a> tags. The tool categorizes each link as internal or external, identifies nofollow/nofollow attributes, checks anchor text quality, and provides a comprehensive link profile. It visualizes the do-follow vs no-follow ratio with a distribution bar, counts image links, and provides detailed statistics for each link type.

Why It Matters for SEO

Link structure is fundamental to SEO. Internal links distribute page authority (link equity or 'PageRank') throughout your site, helping search engines discover and rank pages. External links to authoritative sources signal topical relevance and trust. Nofollow attributes control link equity flow. A healthy link profile has a good balance — most sites should have more internal links than external, and the majority should be do-follow links that pass equity.

When to Use This Tool

  • Before publishing to check all links are working and properly attributed
  • During SEO audits to analyze internal linking structure
  • When checking for broken internal links that waste crawl budget
  • After content updates to verify link references are still valid
  • For competitor analysis to understand their linking strategy
  • When auditing sponsored content for proper nofollow attributes

Key Concepts

Internal Links
Links pointing to pages within the same domain. They distribute page authority and help search engines discover and index your content.
External Links
Links pointing to pages on other domains. They signal topical relevance and trust. Linking to authoritative sources supports your content's credibility.
Nofollow
A link attribute (rel='nofollow') that tells search engines not to pass link equity. Use for sponsored links, user-generated content, and untrusted sources.
Anchor Text
The clickable text in a hyperlink. Descriptive anchor text helps search engines understand the linked page's topic. Use natural, keyword-relevant text.

Best Practices

  • Aim for 3-5 internal links per 1000 words of content
  • Use descriptive anchor text that includes relevant keywords
  • Ensure every important page has at least 3 internal links pointing to it
  • Use nofollow for sponsored links, user-generated content, and untrusted sources
  • Fix broken internal links — they waste crawl budget and hurt user experience
  • Link to authoritative external sources to support your claims and build trust

Frequently Asked Questions

What is the ideal internal to external link ratio?

When should I use nofollow links?

How does anchor text affect SEO?