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Yoast Detector

Check any public website to see whether it uses Yoast.

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Scan a website

Enter a URL and Stackcrawler will inspect public technology signals.

Websites using Yoast

Browse real website examples detected with Yoast.

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What we check

Stackcrawler looks for public page markers, scripts, platform fingerprints, metadata, and other visible implementation clues.

How can you detect if a website uses Yoast?

Detecting if a website uses Yoast SEO by looking at the page source involves identifying specific elements associated with the Yoast plugin.

Here’s a step-by-step guide on how to do it:

  1. Open the Page Source: Right-click on the webpage and select “View Page Source” or press Ctrl+U (Windows) or Cmd+Option+U (Mac) to open the page’s source code.
  2. Search for Yoast-Specific JSON-LD Markup: Use Ctrl+F (Windows) or Cmd+F (Mac) to open the search function and look for yoast-schema. If you find entries like <script type="application/ld+json"> ... </script> containing “Yoast”, the site is likely using Yoast SEO.
  3. Look for Meta Tags with Yoast: Search for meta tags that are specifically added by Yoast. Look for tags like:
    • <meta name="robots" content="max-snippet:-1, max-image-preview:large, max-video-preview:-1">
    • <meta name="description" content="...">: This tag often reflects the SEO description set using Yoast.
  4. Check for the Yoast SEO Plugin in HTML Comments: Sometimes, the Yoast plugin leaves comments in the source code. Search for comments that mention “Yoast” or “wpseo”. An example might look like: <!-- This is a Yoast SEO comment -->.
  5. Look for Yoast SEO Stylesheet: Search for the stylesheet associated with Yoast. You might find entries like <link rel="stylesheet" href="/wp-content/plugins/wordpress-seo/.../style.css">.
  6. Check for Yoast Configuration JavaScript: Yoast may include JavaScript files in the source. Look for scripts that mention “wp-seo”, such as <script src="/wp-content/plugins/wordpress-seo/.../script.js"></script>.
  7. Examine the Admin Panel (if accessible): If you have admin access, look for the “SEO” options in the WordPress sidebar menu. If you see a “SEO” section with Yoast-related options, then the site is using Yoast SEO.