cncf.io

Observed 2026-07-17T12:18:57.058219754+00:00 (8h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onFastly

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesAtlassianHubSpotGoogle Search Console

IPv6 · 1 subdomain · non_profit

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat cncf.io actually stands on - every host below is a signed observation

cncf.io

A / AAAA

23.185.0.32620:12a:8000::32620:12a:8001::3

Fastlyserves the site

ns1.dnsimple-edge.comns2.dnsimple-edge.netns3.dnsimple-edge.ions4.dnsimple-edge.org

dnsimple-edge.com + dnsimple-edge.net + moreanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

cncf.io

Let's Encryptissued its certificate

DNS Records

A 1

23.185.0.3

AAAA 2

2620:12a:8000::3
2620:12a:8001::3

MX 5

1aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com

TXT 5

atlassian-domain-verification=hJowEz6/zBHgzz3jX4VphZ1649hJKuNoOXFYWYbD2qVEnNocFYHQQPpqP4+7YfbJ
v=spf1 include:_spf.google.com include:email.influitive.com include:8112310.spf10.hubspotemail.net include:spf.infosalons.com.cn -all
google-site-verification=SmMiDwGXXq-mW2Pl9FSpFHJlDpfsNd0pLIp3VM44pMM
google-site-verification=t_KSqbHjvvmFkrb1x7osoE0KA3Imv4r6VAY0N0DUJT4
v=DMARC1; p=none; sp=none; rua=mailto:dmarc+cncf@linuxfoundation.org

NS 4

ns1.dnsimple-edge.com
ns2.dnsimple-edge.net
ns3.dnsimple-edge.io
ns4.dnsimple-edge.org

SOA 1

ns1.dnsimple-edge.com admin.dnsimple.com

TLS Certificates (3)

Common Name	Issuer	Expires
`cncf.io`	C=US, O=Let's Encrypt, CN=YR2	Sat, 29 Aug 2026 04:32:56 +0000
`YR2`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

www.cncf.io

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for cncf.io. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/cncf.io">
  <img src="https://domaindrift.io/badge/cncf.io.svg"
       width="300" height="64" alt="DomainDrift signed observations for cncf.io">
</a>

Ed25519 Receipt

Receipt ID: 1e22570b-715b-4410-8f75-324bc81010eb
Output Hash: 73ab9c35286993dee8716a1ee3d6d72e5e5db3cea1a6cae2d78d6bc55a31f37f
Signature: ed25519:a829d23b0e275170be56dff0a51b27377ee701653bb240d3ebcc5704399b0a70bd753a63abd03b21ddf1eead7dd21aa19d9c412c6e16fd8e7799df29b5e3ea02
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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