superuser.com
Observed Jul 18, 2026, 12:50 UTC (17h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Secured byLet's Encrypt
Registered withCSC Corporate Domains, Inc.
Also usesGoogle Search Console
tranco_10k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat superuser.com actually stands on - every host below is a signed observation
superuser.com
A / AAAA
198.252.206.1
Cloudflareserves the site
NS
damian.ns.cloudflare.comsureena.ns.cloudflare.com
cloudflare.comanswers its DNS
TLS
superuser.com
Let's Encryptissued its certificate
DNS Records
A 1
198.252.206.1
TXT 3
google-site-verification=OAR5h64bEL-kZpeYBCVWJxGxl7P1TjmSzebVXD0J5tov=spf1 -allv=DMARC1; p=reject; pct=100; rua=mailto:dmarc-aggregates@stackoverflow.com; ruf=mailto:dmarc-forensics@stackoverflow.com; fo=1
NS 2
damian.ns.cloudflare.comsureena.ns.cloudflare.com
SOA 1
damian.ns.cloudflare.com dns.cloudflare.com
CAA 13
issue "comodoca.com"issue "digicert.com; cansignhttpexchanges=yes"issue "letsencrypt.org"issue "pki.goog; cansignhttpexchanges=yes"issue "sectigo.com"issue "ssl.com"issuewild "comodoca.com"issuewild "digicert.com; cansignhttpexchanges=yes"issuewild "letsencrypt.org"issuewild "pki.goog; cansignhttpexchanges=yes"
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
superuser.com |
C=US, O=Let's Encrypt, CN=YE1 | Thu, 03 Sep 2026 16:16:52 +0000 |
YE1 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 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 receiptEd25519 Receipt
- Receipt ID
c326d498-b429-4ee4-bb28-39e6085d3715- Output Hash
9772ff2764eaeec96704b9aaf95dd74527071e4ecd6628a3a9273708ef44b83a- Signature
ed25519:7ce3940a63cbca850a2087d74035940d07e35bc848fa943b5295c981183424207cd9de35dbaa75d5e5723fe9a7bc8186b55b8da05b37924bc3f4b436a28a5c03- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast