It is responding for me. The IP I get is 198.98.60.34 (FranTech Solutions) is that what you get? Cert expires in 64 days.

SOA matches on all their nameservers:

    for Ns in $(dig +short +nocookie -t ns xcancel.com);do dig +nocookie +short -t soa @"${Ns}" xcancel.com;done
    dns.unixfox.eu. hostmaster.emiliendevos.be. 2026070312 10800 3600 604800 3600
    dns.unixfox.eu. hostmaster.emiliendevos.be. 2026070312 10800 3600 604800 3600
    dns.unixfox.eu. hostmaster.emiliendevos.be. 2026070312 10800 3600 604800 3600

    for Ns in $(dig +short +nocookie -t ns xcancel.com);do dig +nocookie +short -t a @"${Ns}" xcancel.com;done
    198.98.60.34
    198.98.60.34
    198.98.60.34

    curl -A Mozilla -i https://xcancel.com/robots.txt
    HTTP/2 200 
    date: Fri, 10 Jul 2026 03:08:12 GMT
    content-type: application/octet-stream
    content-length: 26
    content-type: text/plain

    User-agent: *
    Disallow: /