kottke.org
Observed Jul 22, 2026, 00:49 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Also usesGoogle Search Console
IPv6 · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat kottke.org actually stands on - every host below is a signed observation
kottke.org
A / AAAA
172.67.190.176104.21.36.862606:4700:3031::6815:24562606:4700:3030::ac43:beb0
Cloudflareserves the site
NS
hugh.ns.cloudflare.comkenia.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
ASPMX.L.GOOGLE.COMASPMX2.GOOGLEMAIL.COMASPMX3.GOOGLEMAIL.COMASPMX4.GOOGLEMAIL.COM+2 more
Google Workspacereceives its email
TLS
kottke.org
Google Trust Servicesissued its certificate
DNS Records
A 2
172.67.190.176104.21.36.86
AAAA 2
2606:4700:3031::6815:24562606:4700:3030::ac43:beb0
MX 6
1ASPMX.L.GOOGLE.COM10ASPMX2.GOOGLEMAIL.COM10ASPMX3.GOOGLEMAIL.COM10ASPMX4.GOOGLEMAIL.COM5ALT1.ASPMX.L.GOOGLE.COM5ALT2.ASPMX.L.GOOGLE.COM
TXT 3
google-site-verification=YgbHWy1ySFXowe_7gY6-73wqbmpzQEdSFDfZZXPBHlsv=spf1 include:_spf.google.com include:amazonses.com ~allv=DMARC1;p=none;pct=100;rua=mailto:re+i7da79rxi5j@dmarc.postmarkapp.com;sp=none;aspf=r;
NS 2
hugh.ns.cloudflare.comkenia.ns.cloudflare.com
SOA 1
hugh.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
kottke.org |
C=US, O=Google Trust Services, CN=WE1 | Sat, 29 Aug 2026 17:51:57 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +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 receiptEd25519 Receipt
- Receipt ID
rcpt_24361f1d55abde1f- Output Hash
bd8762eb928481fd654d54b2432b903405f9c868076a80f4504cee0381f67f9a- Signature
ed25519:1bf40ce2cb0196b94a43d9b692875cdf8593904169b10aa950d26f7ffdef079de1fbd8567bd7421498c5dbefbe016495013b8b750563f047dd5a0bf7554c960c- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast