check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
429 Too Many Requests - isn0.com
HTTP Status: 429
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Content-Type: text/html; charset=iso-8859-1
Content-Length: 227
Connection: keep-alive
X-WS-RateLimit-Limit: 1000
X-WS-RateLimit-Remaining: 999
Date: Tue, 06 May 2025 23:58:37 GMT
Server: Apache

HTTP Code 429 Too Many Requests

http status code 429 means that the client has sent too many requests in a short period.

When is Code 429 used?

  • When an API rate limit is exceeded
  • When a user sends too many login attempts

What does Code 429 mean for the user?

The user must wait before making more requests.

GET / HTTP/1.1
Host: isn0.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>429 Too Many Requests</title>
</head><body>
<h1>Too Many Requests</h1>
<p>The user has sent too many requests
in a given amount of time.</p>
</body></html>

Whois info of domain

Domain Name: ISN0.COM
Registry Domain ID: 1920953730_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.ionos.com
Registrar URL: http://www.ionos.com
Updated Date: 2025-04-19T07:07:31Z
Creation Date: 2015-04-18T07:57:37Z
Registry Expiry Date: 2026-04-18T07:57:37Z
Registrar: IONOS SE
Registrar IANA ID: 83
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.6105601459
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1111.UI-DNS.BIZ
Name Server: NS1111.UI-DNS.COM
Name Server: NS1111.UI-DNS.DE
Name Server: NS1111.UI-DNS.ORG
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-06T23:58:28Z <<<
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
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