DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

w3.org

DNS Records

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Hosting & Network

w3.org runs on Cloudflare, with DNS by Cloudflare and email configured.

Hosting network
CloudflareAS13335Cloudflare
Managed DNS
Cloudflare
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
Set

Sits alongside 2,964,022 other sites on Cloudflare. Stable here since we started watching (Jul 15, 2026).

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

DNS Records for w3.org

HostnameTypeTTLPriorityContent
w3.orgSOA1800jamie.ns.cloudflare.com dns.cloudflare.com 2414459876 10000 2400 604800 1800
w3.orgNS0jamie.ns.cloudflare.com
w3.orgNS0pranab.ns.cloudflare.com
w3.orgA0104.18.23.19
w3.orgA0104.18.22.19
w3.orgAAAA02606:4700::6812:1713
w3.orgAAAA02606:4700::6812:1613
w3.orgMX05puck.w3.org
w3.orgMX05pan.w3.org
w3.orgTXT0google-site-verification=dS4IjfXgopxupUFDAqg3wk94IIZ2GuQ-jW4wiLm69Rg
w3.orgTXT0anthropic-domain-verification-xwqnyg=KpEpoEkHUmXnsWC0mhnfKFBrr
w3.orgTXT0853C844562
w3.orgTXT0google-site-verification=CZkSL9bXgKDxRmeDnAQorwhaQy3Ji1vTn36bBn5rL-E
w3.orgTXT0v=spf1 mx ip4:34.238.48.92 ip4:34.199.101.240 ip6:2600:1f18:7d7a:2700::/56 include:_spf.google.com ~all
w3.orgTXT0ca3-d6556337888945edac9c159a068c46a2
w3.orgTXT0google-site-verification=5TpwKtmzdpa5fntQgKHY96mTJ3FiSn9fGp07XKxFsMk
w3.orgTXT0google-site-verification=cu9dn6ytlndLOV87MLxedTHxoKTRKk0dUf_jXK8OsTc
w3.orgCAA00 issuewild sectigo.com
w3.orgCAA00 issuewild ssl.com
w3.orgCAA00 issuewild digicert.com; cansignhttpexchanges=yes
w3.orgCAA00 issue sectigo.com
w3.orgCAA00 issuewild letsencrypt.org
w3.orgCAA00 issue ssl.com
w3.orgCAA00 issue comodoca.com
w3.orgCAA00 issuewild pki.goog; cansignhttpexchanges=yes
w3.orgCAA00 issuewild comodoca.com
w3.orgCAA00 issue digicert.com; cansignhttpexchanges=yes
w3.orgCAA00 issue amazon.com
w3.orgCAA00 issue pki.goog; cansignhttpexchanges=yes
w3.orgCAA00 issue letsencrypt.org
w3.orgCAA00 iodef mailto:sysreq@w3.org
www.w3.orgTXT0v=spf1 -all
www.w3.orgA0104.18.23.19
www.w3.orgA0104.18.22.19
www.w3.orgAAAA02606:4700::6812:1613
www.w3.orgAAAA02606:4700::6812:1713

Get alerted the moment w3.org's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch w3.org continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

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.

Monitor DNS free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

What's up with DNS →

Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

Ask about w3.org

Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

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