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.

14 HTTP Headers from doujinshi.com.cnWith a configurable User Agent String, referring URL (referer) and cookies


  1. HTTP/1.1 301 Moved Permanently
  2. Date: Sun, 06 Apr 2025 04:52:04 GMT
  3. Content-Type: text/html
  4. Content-Length: 167
  5. Connection: keep-alive
  6. Cache-Control: max-age=3600
  7. Expires: Sun, 06 Apr 2025 05:52:04 GMT
  8. Location: https://doujinshi.com.cn/
  9. Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=8jzNascH0dHi%2BEPk6w3uTXChSGzbRbB5Kv844EZHI8FPbXKL13eYFi%2BNKJGwhO96EGbVduYlZugSEg%2Bm5XHldfTcuSXRJlatvQgdRhwhrUBJxeGsJsJjR9KXSItuaKbpu4Wj2ok%2Fbe1JEKk9uqgf"}],"group":"cf-nel","max_age":604800}
  10. NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
  11. Server: cloudflare
  12. CF-RAY: 92beac793aaa9f2f-FRA
  13. alt-svc: h3=":443"; ma=86400
  14. server-timing: cfL4;desc="?proto=TCP&rtt=1371&min_rtt=1371&rtt_var=685&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=163&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"

Latest HTTP Headers requests list 30 URLs with HTTP status codes


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