regular-expressions.info
Observed Jul 21, 2026, 16:43 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
Secured byLet's Encrypt
Registered withNameCheap, Inc.
1 subdomain · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat regular-expressions.info actually stands on - every host below is a signed observation
regular-expressions.info
A / AAAA
216.92.20.37
unattributedserves the site
NS
ns0000.ns0.comdns4.pair.com
ns0.com + pair.comanswers its DNS
MX
mailwash62.pair.com
pair.comreceives its email
TLS
regular-expressions.info
Let's Encryptissued its certificate
DNS Records
A 1
216.92.20.37
MX 1
50mailwash62.pair.com
TXT 1
v=spf1 include:webmail.pair.com include:relay.pair.com include:pairlist.com a:vps507.pairvps.com a:mailwash62.pair.com -all
NS 2
ns0000.ns0.comdns4.pair.com
SOA 1
dns4.pair.com root.pair.com
SRV 3
my.pair.com:443 p1vps507.mail.pairserver.com:993 p1vps507.mail.pairserver.com:587 p1
CAA 1
issue "letsencrypt.org"
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
regular-expressions.info |
C=US, O=Let's Encrypt, CN=YR2 | Tue, 29 Sep 2026 17:22:44 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (1)
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_93509dbfa86609a5- Output Hash
8b7f56cfa1a0e1cb901f5c4613c72b367968745ab762c557d90f32b4e7942a09- Signature
ed25519:2e1f3968c39405e87dbc787b1e40b4c11ba0ef8fd47a6b2f830aa65787d3f4cae53f31c2cdae22811662507160b8c8f984d2ebb8356422305d7cbf952e434603- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast