check web redirect url status code checker

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308 Permanent Redirect - cotrk.com
HTTP Status: 308
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Content-Type: text/plain
Location: https://cotrk.com/
Refresh: 0;url=https://cotrk.com/
server: Vercel

HTTP Code 308 Permanent Redirect

308 status code is a permanent redirect that, unlike 301, ensures the request method remains unchanged.

When is Code 308 used?

  • When a resource is permanently moved while preserving the request method
  • When enforcing HTTPS without changing form submission behavior

What does Code 308 mean for the user?

The user is permanently redirected to the new URL, and the request method remains the same.

404 Not Found - https://cotrk.com/
HTTP Status: 404
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Cache-Control: public, max-age=0, must-revalidate
Content-Length: 107
Content-Type: text/plain; charset=utf-8
Date: Sat, 17 May 2025 01:11:51 GMT
Server: Vercel
Strict-Transport-Security: max-age=63072000
X-Vercel-Error: DEPLOYMENT_NOT_FOUND
X-Vercel-Id: arn1::vkk47-1747444311950-b2fe1746bb0b

HTTP Code 404 Not Found

404 status code means that the requested page or resource was not found on the server.

When is Code 404 used?

  • When a page is deleted
  • When the URL is incorrect
  • When there are navigation issues on the website

What does Code 404 mean for the user?

The user sees an error message, and search engines may remove the page from their index.

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

The deployment could not be found on Vercel.

DEPLOYMENT_NOT_FOUND

arn1::vkk47-1747444311950-b2fe1746bb0b

Whois info of domain

Domain Name: COTRK.COM
Registry Domain ID: 2744676576_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.tucows.com
Registrar URL: http://www.tucows.com
Updated Date: 2025-02-27T19:06:08Z
Creation Date: 2022-12-14T15:47:39Z
Registry Expiry Date: 2026-12-14T15:47:39Z
Registrar: Tucows Domains Inc.
Registrar IANA ID: 69
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.4165350123
Domain Status: ok https://icann.org/epp#ok
Name Server: NS1.VERCEL-DNS.COM
Name Server: NS2.VERCEL-DNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-17T01:11:35Z <<<
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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