cello.so
Observed Jul 24, 2026, 18:50 UTC (8d 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.
Up right now
Runs onOVH SAS
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search ConsoleHubSpot
IPv6 · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat cello.so actually stands on - every host below is a signed observation
cello.so
A / AAAA
151.80.4.2192001:41d0:301:1::31
OVH SASserves the site
NS
ns-1087.awsdns-07.orgns-1578.awsdns-05.co.ukns-250.awsdns-31.comns-796.awsdns-35.net
awsdns-07.org + awsdns-05.co.uk + moreanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.com3q7y2l624d4xxrh6olpbimu4ligztxs772qf2jetps6r3arwjoqa.mx-verification.google.com+2 more
Google Workspacereceives its email
TLS
cello.so
Let's Encryptissued its certificate
DNS Records
A 1
151.80.4.219
AAAA 1
2001:41d0:301:1::31
MX 6
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com153q7y2l624d4xxrh6olpbimu4ligztxs772qf2jetps6r3arwjoqa.mx-verification.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 9
apple-domain-verification=Mf4NBilRDPO1C6luaspmx.l.google.comgoogle-site-verification=B05j8TwWGrLE2poUM4tjXibLChOrFZhqKhCxWQ3qqRwgoogle-site-verification=cIdMpWbRy6syhVp6HvNyk9Rcut_mKwFaI9zy2zDkpVcheyhack-verification=32101b1e-8ba8-4a4b-9f60-f2663d651c50openai-domain-verification=dv-FIljjTAtpNZTQklhI8nxZWdCv=MCPv1; k=ed25519; p=FjjeUpQpwLk9wwHSirfSJfvTxOsRhMhBWhB+Huf84jA=v=spf1 include:_spf.mailersend.net include:_spf.google.com include:25562831.spf10.hubspotemail.net ~allv=DMARC1; p=quarantine;
NS 4
ns-1087.awsdns-07.orgns-1578.awsdns-05.co.ukns-250.awsdns-31.comns-796.awsdns-35.net
SOA 1
ns-250.awsdns-31.com awsdns-hostmaster.amazon.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
cello.so |
C=US, O=Let's Encrypt, CN=YE1 | Wed, 09 Sep 2026 03:33:27 +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_4d720823bad2c23c- Output Hash
bb6bcbaecc0e938c62e1d85b43797ef99a727ea845341689458bbf2321b1c045- Signature
ed25519:bb9a5bd3915fda0c6853802b19c34032d7eea3ca7fe661eced0afed46d6acdba92a7e46ed9e0595d5d00cb9e985748ddf8c33a909888c90b6e72aab275a51f08- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast