What is the Internal Link Finder tool?

Internal Link Finder is a free browser-based tool that analyzes your content and finds semantically related pages for internal linking. It uses TF-IDF (Term Frequency-Inverse Document Frequency) algorithm to calculate content similarity and suggest the best pages to link to.

How does TF-IDF similarity work?

TF-IDF measures how important words are to a document relative to a collection. Words that appear frequently in your content but rarely across the site are weighted higher. The tool compares these weighted terms across all pages to find the most semantically similar content for linking.

Is this tool really free?

Yes, 100% free with no signup required. The tool runs entirely in your browser using JavaScript. Your content never leaves your computer - no data is uploaded to any server.

How many internal links should I add per page?

SEO best practices suggest having 40-60+ internal links per page for optimal results. This includes navigation, sidebar, footer, and contextual links within content. Focus on adding 3-5 highly relevant contextual links within your article body.

Internal Link Finder

Paste your content and discover semantically related pages for internal linking. Uses TF-IDF similarity analysis to find the best linking opportunities on your site.

100% Free TF-IDF Analysis Similarity Scores Anchor Suggestions No Signup

Your Content 0 words

How to Find Internal Linking Opportunities

Paste Content

Copy your article text including title and headings.

Analyze

Click "Find Related Content" to run TF-IDF analysis.

Review Results

Browse pages ranked by similarity score (higher = more relevant).

Add Links

Use suggested anchor text to add internal links.

Internal Linking Best Practices

Target 60+ Links

Pages with 60+ internal links (including nav/footer) tend to rank better. This tool helps you find contextual links to add within your content.

First Link Priority

Google only counts the first link's anchor text when you link to the same page multiple times. Place your most important links early in content.

Vary Anchor Text

Don't use the same anchor text every time. Mix exact titles with variations like "setup guide", "integration tutorial", and natural phrases.

Frequently Asked Questions

What is TF-IDF similarity?

TF-IDF (Term Frequency-Inverse Document Frequency) measures how important words are to a document. Words that appear often in your content but rarely across other pages are weighted higher. The tool compares these weighted terms to find semantically similar content - pages that discuss the same topics in similar ways.

Why are internal links important for SEO?

Internal links serve multiple SEO purposes: they help search engines discover and understand your content structure, distribute PageRank (link equity) throughout your site, establish topical relevance between related pages, and improve user engagement by guiding visitors to related content. Sites with strong internal linking typically see better crawlability and rankings.

How many internal links should I add?

SEO research suggests pages with 60+ total internal links (including navigation, sidebar, and footer) perform best. For contextual links within article content, aim for 3-10 highly relevant links. Quality matters more than quantity - only link to truly related content that would help readers. This tool helps you find the most relevant pages to link to.

What makes good anchor text?

Good anchor text is descriptive and relevant to the target page. Avoid generic phrases like "click here" or "read more". Use a mix of: exact page titles (60% of the time), descriptive variations ("QuickBooks setup guide"), and natural contextual phrases ("learn how to connect your accounting software"). Varying your anchor text looks more natural to search engines.

Is my content data safe?

Yes, completely safe. This tool runs 100% in your browser using JavaScript. Your content is never uploaded to any server. The page index is pre-generated and loaded client-side, so all similarity calculations happen locally on your device.