astm.org
Observed 2026-07-12T00:01:54.212Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Also usesAtlassianGoogle Search Console
IPv6 · 11 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat astm.org actually stands on - every host below is a signed observation
astm.org
A / AAAA
18.164.174.718.164.174.11918.164.174.10618.164.174.35+8 more
Cloudflareserves the site
NS
udns2.cscdns.ukudns1.cscdns.net
cscdns.uk + cscdns.netanswers its DNS
MX
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 time105 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
18.164.174.718.164.174.11918.164.174.10618.164.174.35
AAAA 8
2600:9000:24ba:d000:1d:d45f:4300:93a12600:9000:24ba:9800:1d:d45f:4300:93a12600:9000:24ba:1400:1d:d45f:4300:93a12600:9000:24ba:7800:1d:d45f:4300:93a12600:9000:24ba:e600:1d:d45f:4300:93a12600:9000:24ba:600:1d:d45f:4300:93a12600:9000:24ba:2200:1d:d45f:4300:93a12600:9000:24ba:f200:1d:d45f:4300:93a1
MX 2
20extmaild.astm.org30extmaila.astm.org
TXT 18
status-page-domain-verification=7qdvkyw6gmmlanthropic-domain-verification-k1aw56=IgjiPcxKZEEx9kiote5RvWs06MS=ms31507730beautifulai-site-verification=117aa464-3edc-4d9a-92b5-83150239882av=spf1 include:spf1.astm.org include:spf2.astm.org include:spf3.astm.org -allatlassian-domain-verification=OxsbIkeGaGaeTHrCApNffgTKF3NfnzFyfr/OYOAS1yaBv9SDl4CQN28JQl4Z8MKY00DC0000000QKmp=1TBRP000000023Rzywave-domain-verification=XM1wFapax/QKNihwn/ZBK8VNflAUTE5K//QVawjXy18=UK-federation-domain-verification=393ccc236421bf9cfbdd12fcd3fd5c00google-site-verification=5ASwgqk0yoC7JfZXhU8MSqIt9wIV7dk4FpM5dcIu4Bo
NS 2
udns2.cscdns.ukudns1.cscdns.net
SOA 1
udns1.cscdns.net hostmaster.cscdns.net
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 receiptEd25519 Receipt
- Receipt ID
0163225a-dae2-498e-9991-c297a6d1b051- Output Hash
20884098b9131d3665d7a8a6b1fb3f3073af7315a4d6484b1da6cb880d91602e- Signature
ed25519:84d5a99e3a62554520f61a6f2875f48dd4f89be4b0f90045ed29d1c2a04a80a79682e1f02ebbcea258e0d53fdde02dd18247f414715dd3cc5388d9f7e4c9c70c- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast