phcorner.org

Observed Jul 18, 2026, 14:00 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onCloudflare

Secured byLet's Encrypt

Registered withCloudflare, Inc.

Also usesGoogle Search Console

IPv6 · 1 subdomain · tranco_40k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat phcorner.org actually stands on - every host below is a signed observation

phcorner.org

A / AAAA

104.26.14.120172.67.68.227104.26.15.1202606:4700:20::ac43:44e3+2 more

Cloudflareserves the site

anna.ns.cloudflare.comsam.ns.cloudflare.com

cloudflare.comanswers its DNS

linda.mx.cloudflare.netamir.mx.cloudflare.netisaac.mx.cloudflare.net

cloudflare.netreceives its email

TLS

phcorner.org

Let's Encryptissued its certificate

DNS Records

A 3

104.26.14.120
172.67.68.227
104.26.15.120

AAAA 3

2606:4700:20::ac43:44e3
2606:4700:20::681a:e78
2606:4700:20::681a:f78

MX 3

31linda.mx.cloudflare.net
82amir.mx.cloudflare.net
95isaac.mx.cloudflare.net

TXT 3

google-site-verification=D6_5zLExzGoJfmedMK5ikgLWjx8KOSMmsPF0M5hvunA
v=spf1 include:_spf.mx.cloudflare.net ~all
v=DMARC1; p=none;

NS 2

anna.ns.cloudflare.com
sam.ns.cloudflare.com

SOA 1

anna.ns.cloudflare.com dns.cloudflare.com

CAA 10

issue "comodoca.com"
issue "digicert.com; cansignhttpexchanges=yes"
issue "letsencrypt.org"
issue "pki.goog; cansignhttpexchanges=yes"
issue "ssl.com"
issuewild "comodoca.com"
issuewild "digicert.com; cansignhttpexchanges=yes"
issuewild "letsencrypt.org"
issuewild "pki.goog; cansignhttpexchanges=yes"
issuewild "ssl.com"

TLS Certificates (4)

Common Name	Issuer	Expires
`phcorner.org`	C=US, O=Let's Encrypt, CN=YE2	Thu, 27 Aug 2026 02:34:22 +0000
`YE2`	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 (1)

wrkr.phcorner.org

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for phcorner.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/phcorner.org">
  <img src="https://domaindrift.io/badge/phcorner.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for phcorner.org">
</a>

Ed25519 Receipt

Receipt ID: b440d040-b572-489b-86e7-f0f03b9d9654
Output Hash: 75f9de8fe8dd18d0a542f9412f55f4522e8a2c3db4fa650217091a30233e14b4
Signature: ed25519:2f54158fa542dd413b637ffcacf96da20870a59f77ee57edfe94c254fc60ac4353c9679b06f5419bb1b500212aa18c867bb48fe072d642a618748a058c101509
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/phcorner.org