check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
403 Forbidden - kn21.com
HTTP Status: 403
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
content-length: 93
cache-control: no-cache
content-type: text/html

HTTP Code 403 Forbidden

403 http status code indicates that access to the requested resource is denied, even with authentication.

When is Code 403 used?

  • When accessing restricted content without necessary permissions
  • When security rules block a request
  • When an IP address is banned

What does Code 403 mean for the user?

The user is informed that they do not have permission to access the resource.

GET / HTTP/1.1
Host: kn21.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<html><body><h1>403 Forbidden</h1>
Request forbidden by administrative rules.
</body></html>

Whois info of domain

Domain Name: KN21.COM
Registry Domain ID: 2035186256_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.hosting.kr
Registrar URL: http://HOSTING.KR
Updated Date: 2024-07-23T15:06:27Z
Creation Date: 2016-06-13T00:53:17Z
Registry Expiry Date: 2025-06-13T00:53:17Z
Registrar: Megazone Corp., dba HOSTING.KR
Registrar IANA ID: 1489
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +82.216447378
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS1.SEDOPARKING.COM
Name Server: NS2.SEDOPARKING.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-18T08:06:24Z <<<
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