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 - sdkdo.com
HTTP Status: 502
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx
Date: Wed, 30 Apr 2025 11:28:41 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: sdkdo.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: SDKDO.COM
Registry Domain ID: 2721668004_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gname.com
Registrar URL: http://www.gname.com
Updated Date: 2024-07-08T12:16:23Z
Creation Date: 2022-08-29T17:44:17Z
Registry Expiry Date: 2025-08-29T17:44:17Z
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: A.SHARE-DNS.COM
Name Server: B.SHARE-DNS.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-04-30T11:28:34Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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