ottofrei.com
Observed Jul 24, 2026, 19:11 UTC (7d 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 Workspace
Secured byLet's Encrypt
Registered withCloudflare, Inc.
Also usesFacebook/MetaSlackGoogle Search Console
IPv6 · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ottofrei.com actually stands on - every host below is a signed observation
ottofrei.com
A / AAAA
104.26.6.208104.26.7.208172.67.71.1422606:4700:20::681a:6d0+2 more
Cloudflareserves the site
NS
isaac.ns.cloudflare.comkatja.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
ottofrei.com
Let's Encryptissued its certificate
DNS Records
A 3
104.26.6.208104.26.7.208172.67.71.142
AAAA 3
2606:4700:20::681a:6d02606:4700:20::681a:7d02606:4700:20::ac43:478e
MX 5
0aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10aspmx2.googlemail.com10aspmx3.googlemail.com
TXT 11
MS=ms32196492klaviyo-site-verification=TgBrVAklaviyo-site-verification=We9B3Yv=spf1 include:_spf.google.com ~allapple-domain-verification=cT5daeuuEezFWHBGshopify-verification-code=FwqUTWPJYZKXZpRogxaylofOKZGEMAfacebook-domain-verification=vmw5n3bijj7mkv1xiayjpsuthfq1quslack-domain-verification=oUOdQHrI3RmkrNtY7YZm46Fl1tfz96mNqQeGLysVgoogle-site-verification=LMTK8W05R_TZpK3ndlncBR_6qH9UdxtH8azgSgzAqbkgoogle-site-verification=jC4r9Q4N7iFGlWEa7UgbkKK8twSE4O9EdRDDtXLzOo8
NS 2
isaac.ns.cloudflare.comkatja.ns.cloudflare.com
SOA 1
isaac.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
ottofrei.com |
C=US, O=Let's Encrypt, CN=YE1 | Wed, 09 Sep 2026 13:33:33 +0000 |
YE1 |
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 (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_cf7881ed4afa066c- Output Hash
e5f85a903ee790d2209f1262a3e99fb19a31899706695de7885cfe44d5895bb6- Signature
ed25519:5f879bd7bc4da5e123d48fdb1ed3b03f635e1e51e6e17cf8a34c157f056f3bcfbb259b98f0f63a3917b0d21294491bf5ba33b71a512138160d311e3ad535460f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast