check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
502 Bad Gateway - cja12.com
HTTP Status: 502
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx/1.27.3
Date: Mon, 12 May 2025 11:32:37 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive

HTTP Code 502 Bad Gateway

502 status code 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: cja12.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

Whois info of domain

Domain Name: CJA12.COM
Registry Domain ID: 2900787576_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.55hl.com
Registrar URL: http://www.55hl.com
Updated Date: 2025-05-03T11:15:06Z
Creation Date: 2024-07-20T07:30:35Z
Registry Expiry Date: 2025-07-20T07:30:35Z
Registrar: Jiangsu Bangning Science & technology Co. Ltd.
Registrar IANA ID: 1469
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +86.02586883421
Domain Status: ok https://icann.org/epp#ok
Name Server: NS1.DNSIP.COM
Name Server: NS2.DNSIP.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-12T11:32:30Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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