Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
400 Bad Request - xr76.com
HTTP Status: 400
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Content-Type: text/html; charset=us-ascii
Server: Microsoft-HTTPAPI/2.0
Date: Wed, 14 May 2025 14:47:51 GMT
Connection: close
Content-Length: 334

HTTP Code 400 Bad Request

400 response code 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: xr76.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAD><TITLE>Bad Request</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
<BODY><h2>Bad Request - Invalid Hostname</h2>
<hr><p>HTTP Error 400. The request hostname is invalid.</p>
</BODY></HTML>
                               

Whois info of domain

Domain Name: XR76.COM
Registry Domain ID: 2777194935_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.jumi.com
Registrar URL: http://www.juming.com
Updated Date: 2025-03-30T22:33:46Z
Creation Date: 2023-05-01T02:43:55Z
Registry Expiry Date: 2026-05-01T02:43:55Z
Registrar: Hefei Juming Network Technology Co., Ltd
Registrar IANA ID: 3758
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: 4009972996
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: JM1.DNS.COM
Name Server: JM2.DNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-14T14:44:30Z <<<
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