check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
400 Bad Request - ucstl.com
HTTP Status: 400
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx
Date: Sun, 11 May 2025 11:31:13 GMT
Content-Type: text/html; charset=iso-8859-1
Content-Length: 226
Connection: keep-alive

HTTP Code 400 Bad Request

http status code 400 indicates that the server cannot process the request due to client error.

When is Code 400 used?

  • When the request is malformed or contains invalid parameters
  • When required data is missing in the request
  • When sending an incorrect JSON or XML payload

What does Code 400 mean for the user?

The user receives an error message indicating that their request is incorrect and needs to be fixed.

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

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>400 Bad Request</title>
</head><body>
<h1>Bad Request</h1>
<p>Your browser sent a request that this server could not understand.<br />
</p>
</body></html>

Whois info of domain

Domain Name: UCSTL.COM
Registry Domain ID: 2958521781_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.squarespace.domains
Registrar URL: http://domains2.squarespace.com
Updated Date: 2025-05-03T19:30:26Z
Creation Date: 2025-02-12T00:11:25Z
Registry Expiry Date: 2027-02-12T00:11:25Z
Registrar: Squarespace Domains II LLC
Registrar IANA ID: 895
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.6466935324
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS-CLOUD-D1.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-D2.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-D3.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-D4.GOOGLEDOMAINS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-11T11:30:57Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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