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21021.vip

DNS Records

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Hosting & Network

21021.vip runs on Cloudflare, with DNS by Cloudflare.

Hosting network
CloudflareAS13335Cloudflare
Managed DNS
Cloudflare
Email
None
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 4,999+ other sites on Cloudflare. Stable here since we started watching (Jul 19, 2026).

The apex and www are the same hosting — the apex via A records.

DNS Records for 21021.vip

HostnameTypeTTLPriorityContent
21021.vipAAAA02606:4700:3034::ac43:d96c
21021.vipAAAA02606:4700:3030::6815:5661
21021.vipNS0jim.ns.cloudflare.com
21021.vipNS0gina.ns.cloudflare.com
21021.vipSOA1800gina.ns.cloudflare.com dns.cloudflare.com 2410480748 10000 2400 604800 1800
21021.vipA0172.67.217.108
21021.vipA0104.21.86.97
www.21021.vipAAAA02606:4700:3034::ac43:d96c
www.21021.vipAAAA02606:4700:3030::6815:5661
www.21021.vipA0172.67.217.108
www.21021.vipA0104.21.86.97

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Uptime

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DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain