The SEO tab shows all the most important SEO elements of the page. You will have all relevant information about the page in terms of indexability and content in a single view.

Screenshot of SEO tab of Perseo Chrome Extension

Supported on-page SEO elements

  1. URL
  2. Favicon
  3. Status code
  4. Canonical link tag
  5. Canonical HTTP header
  6. Robots meta tag
  7. X-Robots-Tag HTTP header
  8. Refresh meta tag
  9. Title
  10. H1 heading
  11. Description meta tag
  12. Keywords meta tag
  13. Author meta tag
  14. Structured data summary
  15. Language attribute
  16. Charset meta tag
  17. Vary HTTP header
  18. Content-Encoding HTTP header
  19. rel="alternate" link tag
  20. Viewport meta tag
  21. Manifest link tag
  22. AMP attribute
  23. rel="amphtml" link tag
  24. Hreflang link tag
  25. rel="prev/next" link tag
  26. Resource hint link tag
  27. Resource hint HTTP header
  28. Link tag
  29. robots.txt
  30. Sitemaps

HTML tags and HTTP headers

Here are included not only on-page elements located in the HTML code of the current page, but also SEO-relevant HTTP header information, such as:

  • Canonical
  • X-Robots-Tag
  • Resource hints
  • Vary
  • Content-Encoding

Status code and request tracking

Although the Network tab contains the detailed information of the web requests, this tab includes a summary section that allows you to quickly consult the status codes resulting from the succession of requests processed, as well as all the URLs that the browser has passed through since the user's initial request to the page.

Status code click to expand ⤴
Status code

By default, you can simply see the status codes, but if you click on them, the section expands to show the URLs corresponding to each request.

Robots directive

Perseo identifies robots directives set using tags or HTTP headers as well. In addition, it not only detects generic robots directives, but also those targeted to specific crawlers. In the latter case, only the main crawlers are supported (googlebot, bingbot, duckduckbot, baiduspider, yandex).

Robots meta tag and X-Robots-Tag

Support for duplicate tags

If there are duplicate tags, Perseo displays the first one by default, however, it will detect all of them and you will be able to consult them by clicking on the corresponding tag.

Duplicate H1 click to expand ⤴
Duplicate H1 expanded

Hreflang link tags

Perseo identifies the hreflang tags included in the page and displays them in a structured way. In addition, it highlights differently the tag pointing to the page itself. Note that Perseo only supports detection of hreflang tags in HTML code, not as HTTP headers.

Hreflang link tags detection click to expand ⤴
Hreflang link tags detection expanded

Sitemaps XML detection

If the location of the sitemaps has been reported via robots.txt file, Perseo is able to recursively crawl both indexes and sitemaps, count their URLs and generate with this information a handy summary that will allow you to get a quick idea of how they are structured and detect possible problems. Please note that Perseo only supports crawling sitemaps in uncompressed XML format.

Sitemaps discovery click to search ⤴
Sitemaps discovery completed