Internal Link Checker
Count internal against external links on a page, and catch nofollowed internal links and unsafe new-tab links.
- 100% free
- No sign-up
What is Internal Link Checker?
Internal links are how relevance and crawl priority move around a site: a page nothing links to is a page Google reaches last and values least.
This tool counts the internal and external links on a page and looks for the two mistakes that quietly undo the effort. The first is a nofollow on an internal link, which stops signals flowing between your own pages and is almost never deliberate — it usually arrives from a plugin applying one rule to every link. The second is target="_blank" without rel="noopener", which lets the opened page reach back through window.opener; modern browsers imply noopener but older ones do not, and the attribute costs nothing.
How to use Internal Link Checker
- 1
Fetch or paste
Enter a URL, or paste the HTML.
- 2
Look at the split first
A page with no internal links is a dead end. A page with only external ones is sending all its value away.
- 3
Check for nofollowed internal links
These are nearly always accidental, and they cut a page off from the rest of your site.
- 4
Add noopener to new-tab links
One attribute, no downside.
Everything this tool
does for you
- Internal vs external link counts
- Nofollowed-internal-link detection
- target="_blank" safety check
- Handles protocol-relative URLs correctly as external
- Reads a live URL or pasted HTML
- Free, no signup, no daily limit
Further reading
Related free tools
Frequently asked questions
Beyond this tool
See the full picture for your website.
Enter your URL for a free audit across eight scored areas. See prioritised issues and clear next steps in one report.
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- Internal vs external split
- Finds internal links you have nofollowed by accident
- Flags target="_blank" without rel="noopener"
- Warns when a page links nowhere on-site
- Free, no account, no daily limit