check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
301 Moved Permanently - sdkxw.com
HTTP Status: 301
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Date: Wed, 30 Apr 2025 12:52:08 GMT
Content-Type: text/html
Content-Length: 167
Connection: keep-alive
Cache-Control: max-age=3600
Expires: Wed, 30 Apr 2025 13:52:08 GMT
Location: https://sdkxw.com/
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=duKQawvqqapk4nJVB9f6I1i2b%2BHS5GjUibfR%2Fo5NuY89Lmy1ABJpvaxrpnN0R9wq80GmgScj9Vncu2awkBhbMCyf5qA%2BG5HxyiOlx8y4N5VCv6uSU5kFsREOd5cXUFOQHMzfzXZYOlc%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 93872cb30a4962be-HAM
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=TCP&rtt=21149&min_rtt=21149&rtt_var=10574&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=165&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"

HTTP Code 301 Moved Permanently

301 Moved Permanently means that the requested resource has been permanently moved to a new URL. All future requests should use the new address.

When is Code 301 used?

  • When changing a website domain
  • When modifying URL structures
  • When setting up redirects for SEO

What does Code 301 mean for the user?

The browser will automatically redirect the user to the new address, and search engines will update their indexes.

521 Web Server Is Down - https://sdkxw.com/
HTTP Status: 521
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Date: Wed, 30 Apr 2025 12:52:09 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: keep-alive
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=tFVYf5aHLasJ6LfHUAmt%2FCylTsyeEgv0okGW4uDzsW44RA4gX5oaRRWhNtAg%2B%2BBXl9kVrIbntS9wbP8GMCD%2FFaFOgB00rIMOKTSMw0bZnPcUHV%2FZdzGwcEpBlzdC4DOxeE8oJSrlaJU%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
X-Frame-Options: SAMEORIGIN
Referrer-Policy: same-origin
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Server: cloudflare
CF-RAY: 93872cb3cd05be53-CPH
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=TCP&rtt=14992&min_rtt=14922&rtt_var=4268&sent=5&recv=7&lost=0&retrans=0&sent_bytes=2832&recv_bytes=784&delivery_rate=266895&cwnd=252&unsent_bytes=0&cid=6d958a35dd014a65&ts=331&x=0"
GET / HTTP/1.1
Host: sdkxw.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

error code: 521

Whois info of domain

Domain Name: SDKXW.COM
Registry Domain ID: 1946934661_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gname.com
Registrar URL: http://www.gname.com
Updated Date: 2024-10-14T16:59:18Z
Creation Date: 2015-07-14T18:46:09Z
Registry Expiry Date: 2025-07-14T18:46:09Z
Registrar: Gname.com Pte. Ltd.
Registrar IANA ID: 1923
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +65.65189986
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: ANIRBAN.NS.CLOUDFLARE.COM
Name Server: COURTNEY.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-04-30T12:51:49Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
NOTICE: The expiration date displayed in this record is the date the
TERMS OF USE: You are not authorized to access or query our Whois
by the following terms of use: You agree that you may use this Data only
to: (1) allow, enable, or otherwise support the transmission of mass