ctan.org
Observed 2026-07-14T09:26:21.750Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Registered withDNC Holdings, Inc.
Also usesGoogle Search Console
IPv6 · 6 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ctan.org actually stands on - every host below is a signed observation
ctan.org
A / AAAA
202.61.224.1322a03:4000:56:120::1
Cloudflareserves the site
NS
ns2.tug.orgns1.tug.orgtragedy.dante.de
tug.org + dante.deanswers its DNS
MX
irony.dante.de
dante.dereceives its email
HTTPS probe
ok
Responding normally (2xx) 200 OK
HTTP status200
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time498 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
202.61.224.132
AAAA 1
2a03:4000:56:120::1
MX 1
10irony.dante.de
TXT 3
google-site-verification=9S_RyjfPcn9W3kYwDDrU7BswRhDytfyD4R_736raDsov=spf1 mx ~allv=DMARC1; p=none
NS 3
ns2.tug.orgns1.tug.orgtragedy.dante.de
SOA 1
tragedy.dante.de root.tug.org
TLS Certificates (0)
None.
Subdomains (6)
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
4e2aba17-aedd-49d9-b5c1-59dbfb4e9035- Output Hash
42ff46852c88a137adfaa4783e1ef939cb8c12d5ae52a3846e08ce66a9a02ace- Signature
ed25519:1f353784e448c16ac97a7b21b7b5419ada80cef8eb5035d804bddb3c50ed5b2b2d72537ce6b99b0e2c20c2010143d55638e3918a5e3d318d7feed3f4918fce0c- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast