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21st.dev

DNS Records

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Hosting & Network

21st.dev runs on Amazon AWS, with DNS by Cloudflare and email via Google Workspace.

Hosting network
Amazon AWSAS16509Amazon AWS
Managed DNS
Cloudflare
Email
Google Workspace
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 4,999+ other sites on Amazon AWS. Stable here since we started watching (Jul 28, 2026).

DNS Records for 21st.dev

HostnameTypeTTLPriorityContent
21st.devSOA1800troy.ns.cloudflare.com dns.cloudflare.com 2413259852 10000 2400 604800 1800
21st.devTXT0v=spf1 include:spf.improvmx.com include:_spf.google.com ~all
21st.devTXT0v=MCPv1; k=ed25519; p=EM8lFWBlkVHp1iUfw1JYS5yxWUKkpygsWIVMLLCsT7c=
21st.devTXT0google-site-verification=lSeXH_a7Xho1aiLtwJZSWs-zRYY1PXilt_-m6JEGtFw
21st.devTXT0pinterest-site-verification=b11e052f8527ba192c895ae949b5435b
21st.devTXT0google-site-verification=hTyRw-FMAZobiHchBR0i-AmZAJ3U3l8CLEU8wldCH40
21st.devTXT0google-site-verification=YFpWIJMGkNWwROIBi6k4tCDond42AzcwikvbTcaAkEs
21st.devNS0troy.ns.cloudflare.com
21st.devNS0wanda.ns.cloudflare.com
21st.devMX05alt1.aspmx.l.google.com
21st.devMX05alt2.aspmx.l.google.com
21st.devMX010alt3.aspmx.l.google.com
21st.devMX01aspmx.l.google.com
21st.devMX010alt4.aspmx.l.google.com
21st.devCAA00 issuewild pki.goog; cansignhttpexchanges=yes
21st.devCAA00 issue pki.goog; cansignhttpexchanges=yes
21st.devCAA00 issue digicert.com; cansignhttpexchanges=yes
21st.devCAA00 issuewild comodoca.com
21st.devCAA00 issuewild letsencrypt.org
21st.devCAA00 issuewild digicert.com; cansignhttpexchanges=yes
21st.devCAA00 issue ssl.com
21st.devCAA00 issuewild ssl.com
21st.devCAA00 issue letsencrypt.org
21st.devCAA00 issue comodoca.com
21st.devA0216.150.16.129
21st.devA0216.150.1.129
www.21st.devCNAME03ef630afc08a9c52.vercel-dns-016.com
www.21st.devCAA00 issue globalsign.com
www.21st.devCAA00 issue letsencrypt.org
www.21st.devCAA00 issue pki.goog
www.21st.devCAA00 issue sectigo.com
www.21st.devA0216.150.16.193
www.21st.devA0216.150.1.193

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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