quantamagazine.org
Observed Jul 18, 2026, 13:07 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byProofpoint
Secured byLet's Encrypt
Registered withCloudflare, Inc.
Also usesFacebook/MetaGoogle Search Console
tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat quantamagazine.org actually stands on - every host below is a signed observation
quantamagazine.org
A / AAAA
52.71.21.243
Cloudflareserves the site
NS
gabe.ns.cloudflare.comkim.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mxa-00672b01.gslb.pphosted.commxb-00672b01.gslb.pphosted.com
Proofpointreceives its email
TLS
quantamagazine.org
Let's Encryptissued its certificate
DNS Records
A 1
52.71.21.243
MX 2
10mxa-00672b01.gslb.pphosted.com10mxb-00672b01.gslb.pphosted.com
TXT 7
adobe-idp-site-verification=2b9c017d82c08ecebbdf9da4fcefc51888136210837e7305f7786230c2b17eb3apple-domain-verification=fs3inIi7tSWOzKZNfacebook-domain-verification=0klbvdiwyu29r8atxu2upwe0mkanlmgoogle-site-verification=AWJ_9YrJEokLliO4GsxoaApnllLbyNb-ZCGTyKRrcwYgoogle-site-verification=sYhcDqYygO-znCaXzGZK5F_hbRvPrrfIyUrol7jYQuIv=spf1 include:spf-00672b01.pphosted.com include:_spf.google.com include:_phishspf.knowbe4.com include:mail.zendesk.com ~allv=DMARC1; p=reject; pct=100; fo=1; rf=afrf; ri=3600; rua=mailto:cc0ca089@inbox.ondmarc.com; ruf=mailto:cc0ca089@inbox.ondmarc.com;
NS 2
gabe.ns.cloudflare.comkim.ns.cloudflare.com
SOA 1
gabe.ns.cloudflare.com dns.cloudflare.com
CAA 11
iodef "mailto:cloud-admins@simonsfoundation.org"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"
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
quantamagazine.org |
C=US, O=Let's Encrypt, CN=YR1 | Sun, 20 Sep 2026 09:44:09 +0000 |
YR1 |
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 (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
bd29f8b1-440a-4a28-acb2-bcd2a72dbc0a- Output Hash
8edd96115db2763071069294a29b5d90a6d9e100f1d50c62bc52328c176f61c4- Signature
ed25519:0d4ec348545d73ac2f0cec0889c0b01fb4355777249716dfd5acd8106e7638c623dec6a38da1a7779106217ed4fff6c8fe6e27477f002556e67034cf280d8403- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast