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 - cnpcb.com
HTTP Status: 502
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
content-length: 107
cache-control: no-cache
content-type: text/html
connection: close

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

<html><body><h1>502 Bad Gateway</h1>
The server returned an invalid or incomplete response.
</body></html>

Whois info of domain

Domain Name: CNPCB.COM
Registry Domain ID: 90714660_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.ename.com
Registrar URL: http://www.ename.net
Updated Date: 2025-01-15T15:17:46Z
Creation Date: 2002-09-28T06:16:48Z
Registry Expiry Date: 2027-09-28T06:18:17Z
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: 2025-05-10T10:50:10Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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