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 - sf17.com
HTTP Status: 301
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx
Date: Fri, 02 May 2025 20:53:40 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Location: https://sf17.com/

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.

502 Bad Gateway - https://sf17.com/
HTTP Status: 502
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx
Date: Fri, 02 May 2025 20:53:42 GMT
Content-Type: text/html
Content-Length: 150
Connection: keep-alive

HTTP Code 502 Bad Gateway

502 Bad Gateway indicates that the server acting as a gateway or proxy received an invalid response from an upstream server.

When is Code 502 used?

  • When a server is down or unreachable
  • When there is a misconfiguration in server settings
  • When a reverse proxy or load balancer fails to connect to the backend server

What does Code 502 mean for the user?

The user cannot access the requested resource due to a temporary issue between servers.

GET / HTTP/1.1
Host: sf17.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx</center>
</body>
</html>

Whois info of domain

Domain Name: SF17.COM
Registry Domain ID: 2203512251_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.ename.com
Registrar URL: http://www.ename.net
Updated Date: 2024-12-10T10:40:31Z
Creation Date: 2017-12-22T20:01:28Z
Registry Expiry Date: 2025-12-22T20:01:28Z
Registrar: eName Technology Co., Ltd.
Registrar IANA ID: 1331
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: 86.4000044400
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS3.DNS.COM
Name Server: NS4.DNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-02T20:53:28Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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