britannica.com
Observed Jul 21, 2026, 19:36 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.
Guarded by a firewall
Runs onCloudflare
Email byGoogle (SPF sender)
Secured byAmazon
Also usesFacebook/MetaGoogle Search Console
push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat britannica.com actually stands on - every host below is a signed observation
britannica.com
A / AAAA
34.193.118.2033.222.172.51
Cloudflareserves the site
NS
ns-1050.awsdns-03.orgns-1567.awsdns-03.co.ukns-243.awsdns-30.comns-829.awsdns-39.net
awsdns-03.org + awsdns-03.co.uk + moreanswers its DNS
TLS
*.britannica.com
Amazonissued its certificate
DNS Records
A 2
34.193.118.2033.222.172.51
TXT 8
ca3-34d513380a624c15b1894f20512d2ca8ca3-5187b5f7e89c48ce9ac11ac4ad4ba681facebook-domain-verification=yx5oj1072bsq69m7blcnrkktdu6h4hgoogle-site-verification=3qlcdPLjaLxZmTfGmv2-7hXoRu7HWw7Sx--a2KgIoN0google-site-verification=iCsMOBxTnqow6GNvW0LQ292qIMjLqMXwpQ6tOfIZgY4google-site-verification=k10aAIZQu5EjFbrh-ABW-9q9phYyigXf-211snaxdg4v=spf1 include:_spf.google.com exists:%{i}._spf.sparkpostmail.com ~allv=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:d6cbe1b8@in.mailhardener.com; ruf=mailto:d6cbe1b8@in.mailhardener.com
NS 4
ns-1050.awsdns-03.orgns-1567.awsdns-03.co.ukns-243.awsdns-30.comns-829.awsdns-39.net
SOA 1
ns-243.awsdns-30.com awsdns-hostmaster.amazon.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
*.britannica.com |
C=US, O=Amazon, CN=Amazon RSA 2048 M04 | Mon, 25 Jan 2027 23:59:59 +0000 |
Amazon RSA 2048 M04 |
C=US, O=Amazon, CN=Amazon Root CA 1 | Fri, 23 Aug 2030 22:26:35 +0000 |
Amazon Root CA 1 |
C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2 | Thu, 31 Dec 2037 01:00:00 +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_7a6d8d395995888e- Output Hash
4e48080ec8ca69a6ff8c6fd0ceec3851d936b860398b836eaa0f488e91ff7cf2- Signature
ed25519:59ebbc8e8a56853867c0bd423f2d95357a63f83a900f817822b24e561378d27c8b1fa65e105dfac0cc354cea72ba5eeb00cbf037dbb57f07968fc3ac46d8d606- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast