spec.org

Observed Jul 18, 2026, 12:46 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCogent Communications

Email byGoogle (SPF sender)

Secured bySectigo

tranco_5k

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

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

spec.org

A / AAAA

38.146.202.4

Cogent Communicationsserves the site

pro.spec.orgns2.headgear.orgns1.headgear.orgspec.cs.miami.edu

spec.org + headgear.org + moreanswers its DNS

pro.spec.org

Google (SPF sender)receives its email

TLS

*.spec.org

Sectigo Limitedissued its certificate

DNS Records

A 1

38.146.202.4

MX 1

10pro.spec.org

TXT 2

v=spf1 ip4:38.146.202.0/26 include:_spf.google.com -all
v=DMARC1; p=none;

NS 4

pro.spec.org
ns2.headgear.org
ns1.headgear.org
spec.cs.miami.edu

SOA 1

pro.spec.org root.pro.spec.org

TLS Certificates (4)

Common Name	Issuer	Expires
`*.spec.org`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36	Sat, 12 Dec 2026 23:59:59 +0000
`Sectigo Public Server Authentication CA DV R36`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46	Fri, 21 Mar 2036 23:59:59 +0000
`Sectigo Public Server Authentication Root R46`	C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority	Mon, 18 Jan 2038 23:59:59 +0000
`USERTrust RSA Certification Authority`	C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority	Mon, 18 Jan 2038 23:59:59 +0000

Subdomains (0)

None observed.

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

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

Ed25519 Receipt

Receipt ID: f67d3a00-c1d8-4868-8cb5-19908f477520
Output Hash: 270322068bbb674122d29d2a9414fa172824ee42234b54c49a6522b0469f5d94
Signature: ed25519:329269fbc956ec379f9e840428ddb475c464ed0aa529156d093bddff1def662d2a39d930a50d60feefa5d4070593bde7e6d0f6c226d34311c6dba17611d15d04
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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