ietf.org

Observed 2026-07-17T20:35:43.598Z (15h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle (SPF sender)

IPv6 · 11 subdomains · non_profit

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

INFRASTRUCTURE MAPwhat ietf.org actually stands on - every host below is a signed observation

ietf.org

A / AAAA

104.16.44.99104.16.45.992606:4700::6810:2d632606:4700::6810:2c63

Cloudflareserves the site

ken.ns.cloudflare.comjill.ns.cloudflare.com

cloudflare.comanswers its DNS

mail2.ietf.org

Google (SPF sender)receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.ietf.org/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time25 ms

DNS resolutionNOERROR

Redirect chain

https://www.ietf.org/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

104.16.44.99
104.16.45.99

AAAA 2

2606:4700::6810:2d63
2606:4700::6810:2c63

MX 1

0mail2.ietf.org

TXT 5

vs58md9pf8hu6knlglfda9lk6g
ca3-5567e36d3f9947308ac2892e009840cc
v=spf1 ip4:166.84.6.31 ip4:166.84.7.238 ip6:2602:f977:800:f7f6::/64 ip4:166.84.7.34 ip6:2602:f977:800::e276:63ff:fe66:3400 include:_spf.google.com include:spf.hostedrt.com ~all
v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email,mailto:dmarc-report@ietf.org
v=DNSSEC1; (detected)

NS 2

ken.ns.cloudflare.com
jill.ns.cloudflare.com

SOA 1

jill.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (11)

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 ietf.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: edc8996d-4215-45c5-bb89-24bb373383b2
Output Hash: c50c92e0ee220e3c2a1b566f9a56bf8daebc54530c167177856fabc9ca1dc107
Signature: ed25519:df070fbaaa680d16e2a8af734efcf79a0dfaf56c9a6d6118ad1a130f5c5c748d8f53b035da1caa1af9ca1e39be0432fb20673bd1f442242bef15474975f52f08
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/ietf.org