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.

12 HTTP Headers from http://marketupdate.nl/begrippenlijst/With a configurable User Agent String, referring URL (referer) and cookies


  1. HTTP/1.1 301 Moved Permanently
  2. Date: Tue, 16 Sep 2025 23:45:55 GMT
  3. Connection: keep-alive
  4. Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
  5. server: cloudflare
  6. location: https://marketupdate.nl/begrippenlijst/
  7. x-powered-by: PleskLin
  8. x-turbo-charged-by: LiteSpeed
  9. cf-cache-status: DYNAMIC
  10. Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=%2BoA6aRAu428wwzyijQkjWkf4Xdw1KgpIJVwA%2Fvztge3LLxdDSnrvABFRVrruKthcURgIye9JBXdGVt6ckWJwtXjzHk5i1FhFUwDptyHYrKEbrlrz0oNDfmDWbw%3D%3D"}]}
  11. CF-RAY: 98043d7e8db55d41-FRA
  12. alt-svc: h3=":443"; ma=86400

Latest HTTP Headers requests list 30 URLs with HTTP status codes


Copyright ©2009-2023 SublimeStar. PageRank™ is a trademark of Google Inc.