🔗 SEO

Link rel='' Attribute Extractor

Lists every <a> in an HTML and classifies by rel tokens (nofollow, ugc, sponsored, noopener, noreferrer).

HTML Result

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Auditing the rel attributes of a page's links

A link's rel attribute carries information that both search engines and browsers take seriously. The value preventing authority from passing has existed since 2005; from 2019 Google added two more specific ones, one for user-generated content and another for paid or sponsored links — and started treating all three as hints rather than orders.

Paste the HTML and the page lists every link with its attributes, counts how many use each value and flags how many carry none. The browser's HTML parser does the reading, so multiple space-separated values, reversed order and capitals are all handled correctly — things a regular expression would get wrong.

Beyond the SEO values, two matter for security. The one blocking access to the opener window stops the opened page manipulating yours through that reference; current browsers already apply it by default on links opening in a new tab, but declaring it costs nothing. The other suppresses the referrer header, protecting privacy at the cost of the destination losing the origin information — on affiliate or partnership links, that is usually unwanted.

Frequently asked questions

Do I need to mark every external link?

No. An editorial external link, placed because the source is good, should pass authority — that is how the web works. These values exist for links you did not choose or were paid for: comments, user profiles, advertising and sponsorship.

What is the difference between the user-content and sponsored values?

The first marks what came from third parties on your page — comments, forums, profiles. The second marks paid or bartered links. Where both apply, you can declare them space-separated. The generic value still works, but the specific ones give the search engine better information.

Does it still block authority from passing?

Since 2019 Google treats all three as hints rather than absolute directives, meaning it may decide to consider the link anyway. In practice the behaviour is still not passing authority in most cases — what changed is Google reserving the right to judge.

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