DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
cncf.io runs on Fastly, with email via Google Workspace.
- Hosting network
- FastlyAS54113Fastly
- Managed DNS
- Self-hosted / other
- Google Workspace
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 180,951 other sites on Fastly. Stable here since we started watching (Aug 3, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for cncf.io
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cncf.io | NS | 0 | ns3.dnsimple-edge.io | |
| cncf.io | NS | 0 | ns1.dnsimple-edge.com | |
| cncf.io | NS | 0 | ns4.dnsimple-edge.org | |
| cncf.io | NS | 0 | ns2.dnsimple-edge.net | |
| cncf.io | SOA | 300 | ns1.dnsimple-edge.com admin.dnsimple.com 1557512244 86400 7200 604800 300 | |
| cncf.io | TXT | 0 | google-site-verification=SmMiDwGXXq-mW2Pl9FSpFHJlDpfsNd0pLIp3VM44pMM | |
| cncf.io | TXT | 0 | google-site-verification=t_KSqbHjvvmFkrb1x7osoE0KA3Imv4r6VAY0N0DUJT4 | |
| cncf.io | TXT | 0 | atlassian-domain-verification=hJowEz6/zBHgzz3jX4VphZ1649hJKuNoOXFYWYbD2qVEnNocFYHQQPpqP4+7YfbJ | |
| cncf.io | TXT | 0 | v=spf1 include:_spf.google.com include:email.influitive.com include:8112310.spf10.hubspotemail.net include:spf.infosalons.com.cn -all | |
| cncf.io | AAAA | 0 | 2620:12a:8000::3 | |
| cncf.io | AAAA | 0 | 2620:12a:8001::3 | |
| cncf.io | MX | 0 | 10 | alt4.aspmx.l.google.com |
| cncf.io | MX | 0 | 10 | alt3.aspmx.l.google.com |
| cncf.io | MX | 0 | 5 | alt2.aspmx.l.google.com |
| cncf.io | MX | 0 | 1 | aspmx.l.google.com |
| cncf.io | MX | 0 | 5 | alt1.aspmx.l.google.com |
| cncf.io | A | 0 | 23.185.0.3 | |
| www.cncf.io | AAAA | 0 | 2620:12a:8000::3 | |
| www.cncf.io | AAAA | 0 | 2620:12a:8001::3 | |
| www.cncf.io | A | 0 | 23.185.0.3 |
Get alerted the moment cncf.io's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch cncf.io 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.
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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