notebookcheck.com
Observed Jul 18, 2026, 13:45 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Registered withTucows Domains Inc.
Also usesGoogle Search Console
IPv6 · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat notebookcheck.com actually stands on - every host below is a signed observation
notebookcheck.com
A / AAAA
104.26.3.131104.26.2.131172.67.75.1582606:4700:20::ac43:4b9e+2 more
Cloudflareserves the site
NS
ivy.ns.cloudflare.comjeff.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
notebookcheck.com
Google Trust Servicesissued its certificate
DNS Records
A 3
104.26.3.131104.26.2.131172.67.75.158
AAAA 3
2606:4700:20::ac43:4b9e2606:4700:20::681a:2832606:4700:20::681a:383
MX 5
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 3
google-site-verification=DP1brJTpPZe2XDrwXvYnutiQGvIDeA31nMzvrSsjz2Egoogle-site-verification=abmIVvWHUk_uRpcYUmDKDfsRF9oGFPqBt7KtsthpK40v=spf1 ip4:136.243.238.18 ip4:136.243.200.154 ip4:136.243.226.82 ip4:148.251.156.170 ip4:148.251.156.171 ip6:2a01:4f8:242:42ce:c5f0:7631:e183:cd7b ip6:2a01:4f8:242:42c1:d990:f679:e8ed:5ec ip6:2a01:4f8:242:42ca:981b:907b:dcf6:9cc1 a:vpro0698.proserver.punkt.de include:_spf.google.com include:secure-mailgate.com ~all
NS 2
ivy.ns.cloudflare.comjeff.ns.cloudflare.com
SOA 1
ivy.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 (3)
| Common Name | Issuer | Expires |
|---|---|---|
notebookcheck.com |
C=US, O=Google Trust Services, CN=WE1 | Sat, 19 Sep 2026 22:13:35 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +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
b764d688-ca14-4508-b790-6eaacc3e9c47- Output Hash
41fcc63010d51ab54b024031dc9f3e75c902b29a8cbe86574ffc04c7aad43161- Signature
ed25519:ed2c88d4edac372e9d47b04766525070851433ad57739aae3fcdcf9406852956aaef22ae2928051bdbbced595adc598740b7c0cbe6b59f672afe2673b63fef09- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast