check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
301 Moved Permanently - lldoo.com
HTTP Status: 301
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: Tengine
Date: Sun, 18 May 2025 13:28:16 GMT
Content-Type: text/html;charset=utf-8
Content-Length: 0
Connection: keep-alive
Keep-Alive: timeout=15
BackendServer: Aliyun URL Forwarding Server
Location: http://www.lldoo.com

HTTP Code 301 Moved Permanently

301 response code means that the requested resource has been permanently moved to a new URL. All future requests should use the new address.

When is Code 301 used?

  • When changing a website domain
  • When modifying URL structures
  • When setting up redirects for SEO

What does Code 301 mean for the user?

The browser will automatically redirect the user to the new address, and search engines will update their indexes.

502 Bad Gateway - http://www.lldoo.com
HTTP Status: 502
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Server: Tengine
Content-Type: text/html
Content-Length: 253
Connection: keep-alive
Date: Sun, 18 May 2025 13:28:18 GMT
Via: cache40.l2cn1821[12,12,502-1281,M], cache30.l2cn1821[13,0], kunlun3.cn6425[50,50,502-1281,M], kunlun4.cn6425[91,51,502001]
Ali-Swift-Global-Savetime: 1747574898
X-Cache: MISS TCP_MISS dirn:-2:-2
X-Swift-Error: orig response 5xx error
X-Swift-SaveTime: Sun, 18 May 2025 13:28:18 GMT
X-Swift-CacheTime: 1
Timing-Allow-Origin: *
EagleId: 3da0c00e17475748984348910e

HTTP Code 502 Bad Gateway

502 response code indicates that the server acting as a gateway or proxy received an invalid response from an upstream server.

When is Code 502 used?

  • When a server is down or unreachable
  • When there is a misconfiguration in server settings
  • When a reverse proxy or load balancer fails to connect to the backend server

What does Code 502 mean for the user?

The user cannot access the requested resource due to a temporary issue between servers.

GET / HTTP/1.1
Host: lldoo.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>502 Bad Gateway</title></head>
<body>
<h1>502 Bad Gateway</h1>
<p>The proxy server received an invalid response from an upstream server.<hr/>Powered by Tengine</body>
</html>

Whois info of domain

Domain Name: LLDOO.COM
Registry Domain ID: 1850229077_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.ename.com
Registrar URL: http://www.ename.net
Updated Date: 2025-03-11T01:51:56Z
Creation Date: 2014-03-12T18:36:21Z
Registry Expiry Date: 2026-03-12T18:36:21Z
Registrar: eName Technology Co., Ltd.
Registrar IANA ID: 1331
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: 86.4000044400
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1.ALIDNS.COM
Name Server: NS2.ALIDNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-18T13:28:12Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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