3W1 SEO Tools

Make your WWW the #1 with SEO!

  1. SEO Analysis
  2. Predicted PageRank
  3. PageRank Button
  4. Check PageRank
  5. WHOIS
  6. HTTP Headers 

3W1 strongly recommends „White Hat SEO” – learn why it's good for your website, while „Black Hat SEO” is not.

10 HTTP Headers from https://bitly.comWith a configurable User Agent String, referring URL (referer) and cookies


  1. HTTP/2 405
  2. server: nginx
  3. date: Wed, 22 Oct 2025 17:14:40 GMT
  4. content-type: text/plain; charset=utf-8
  5. content-length: 19
  6. allow: GET, OPTIONS
  7. x-content-type-options: nosniff
  8. strict-transport-security: max-age=31536000
  9. via: 1.1 google, 1.1 google
  10. alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

Latest HTTP Headers requests list 30 URLs with HTTP status codes


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