check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
503 Service Unavailable - cmpnn.com
HTTP Status: 503
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: nginx-reuseport/1.21.1
Date: Fri, 02 May 2025 16:41:49 GMT
Content-Type: text/html
Content-Length: 207
Connection: keep-alive
Keep-Alive: timeout=30

HTTP Code 503 Service Unavailable

503 status code indicates that the server is temporarily unavailable due to overload or maintenance.

When is Code 503 used?

  • When a server is overloaded with traffic
  • When the server is undergoing scheduled maintenance
  • When a web application temporarily restricts access

What does Code 503 mean for the user?

The user must wait and try again later, as the server is currently unavailable.

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

<html>
<head><title>503 Service Temporarily Unavailable</title></head>
<body>
<center><h1>503 Service Temporarily Unavailable</h1></center>
<hr><center>nginx-reuseport/1.21.1</center>
</body>
</html>

Whois info of domain

Domain Name: CMPNN.COM
Registry Domain ID: 1750874159_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.webnames.ru
Registrar URL: http://www.webnames.ru
Updated Date: 2024-10-09T10:30:06Z
Creation Date: 2012-10-09T06:55:12Z
Registry Expiry Date: 2025-10-09T06:55:12Z
Registrar: Regtime Ltd.
Registrar IANA ID: 1362
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +78463733047
Domain Status: ok https://icann.org/epp#ok
Name Server: NS1.BEGET.COM
Name Server: NS1.BEGET.PRO
Name Server: NS2.BEGET.COM
Name Server: NS2.BEGET.PRO
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-02T16:41:40Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
NOTICE: The expiration date displayed in this record is the date the
TERMS OF USE: You are not authorized to access or query our Whois
by the following terms of use: You agree that you may use this Data only
to: (1) allow, enable, or otherwise support the transmission of mass