astm.org

Observed 2026-07-06T07:51:25.940Z (6d ago). Every field below was attested with an Ed25519 signature at scan time.

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

astm.org

A / AAAA

18.161.170.9318.161.170.5318.161.170.4218.161.170.10+8 more

2600serves the site

udns2.cscdns.ukudns1.cscdns.net

cscdns.uk + cscdns.netanswers its DNS

extmaild.astm.orgextmaila.astm.org

astm.orgreceives its email

HTTPS probe

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

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time323 ms

DNS resolutionNOERROR

Redirect chain

https://www.astm.org/

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

DNS Records

A 4

18.161.170.93
18.161.170.53
18.161.170.42
18.161.170.10

AAAA 8

2600:9000:212f:3000:1d:d45f:4300:93a1
2600:9000:212f:8a00:1d:d45f:4300:93a1
2600:9000:212f:2200:1d:d45f:4300:93a1
2600:9000:212f:be00:1d:d45f:4300:93a1
2600:9000:212f:9a00:1d:d45f:4300:93a1
2600:9000:212f:ec00:1d:d45f:4300:93a1
2600:9000:212f:da00:1d:d45f:4300:93a1
2600:9000:212f:1a00:1d:d45f:4300:93a1

MX 2

20extmaild.astm.org
30extmaila.astm.org

TXT 18

cisco-ci-domain-verification=372326fa1b497cf49fbf5c6fc9fd9ef148d159869a7c5dd8c67d014d89fd8a03
google-site-verification=5ASwgqk0yoC7JfZXhU8MSqIt9wIV7dk4FpM5dcIu4Bo
atlassian-domain-verification=MnDGRTalCpT4L4kLQSbEz7lUzITWxd2tyy/VdHHruM6vTGymDPrR60Iv2eov09eC
UK-federation-domain-verification=393ccc236421bf9cfbdd12fcd3fd5c00
00DO9000002ITnB=1TBO90000000HQf
jamf-site-verification=i31mJAwcVNpmFnRzDR_E9Q
_globalsign-domain-verification=-2f4OJV09KbNKpJsjGqOEAHNSJJavfxLaUaJEC5gym
beautifulai-site-verification=117aa464-3edc-4d9a-92b5-83150239882a
anthropic-domain-verification-k1aw56=IgjiPcxKZEEx9kiote5RvWs06
apple-domain-verification=4Dp6r0hZ0Uzjuca5

NS 2

udns2.cscdns.uk
udns1.cscdns.net

SOA 1

udns1.cscdns.net hostmaster.cscdns.net

TLS Certificates (0)

None.

Subdomains (183)

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 Connor observes and signs for astm.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://connor.dns.drm3.network/t/astm.org">
  <img src="https://connor.dns.drm3.network/badge/astm.org.svg"
       width="300" height="64" alt="Connor signed observations for astm.org">
</a>

Ed25519 Receipt

Receipt ID: a5de4a00-2095-4f03-8dcf-13d268d56eb8
Output Hash: c54b6725eb2d03f021d93a13e3d232319406398a6d9bccacd260974355e998be
Signature: ed25519:53402d9c25e41ad743a8c134a97a5051f4550a19f622664a4641ba05e24e503c873d7cfe6cf8a5072e7fb493f8f8fc4f22f57cfbc03fdb85bbe94c206e369808
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://connor.dns.drm3.network/t/astm.org/2026-07-06T07:51:25.940Z