Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
520 Unknown Error - nsdar.com
HTTP Status: 520
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Date: Tue, 13 May 2025 06:07:37 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: keep-alive
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=74OEVueNSlaeXyrHZVNl4axSs8tDtg5CWG2%2F8poWCI8NJ4y%2BfUQT7wVvMd4Md3F3yATkxxZn%2FYl%2B6D%2FDigx4KLtw5G%2BarE0AGphDSuPZlnK5acNCYDJRRRWLmaKs1437bFG%2BPQfDDg%3D%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
X-Frame-Options: SAMEORIGIN
Referrer-Policy: same-origin
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Server: cloudflare
CF-RAY: 93effa035da28d69-HEL
server-timing: cfL4;desc="?proto=TCP&rtt=1558&min_rtt=1558&rtt_var=779&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=165&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
GET / HTTP/1.1
Host: nsdar.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
error code: 520                               

Whois info of domain

Domain Name: NSDAR.COM
Registry Domain ID: 26759899_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://networksolutions.com
Updated Date: 2024-05-10T13:15:07Z
Creation Date: 2000-05-10T12:48:36Z
Registry Expiry Date: 2034-05-10T12:48:36Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.8777228662
Domain Status: ok https://icann.org/epp#ok
Name Server: ALBERT.NS.CLOUDFLARE.COM
Name Server: VERA.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-13T06:07:27Z <<<
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