blurb.com
Observed Jul 22, 2026, 00:05 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.
Up right now
Runs onBlurb
Email byMicrosoft 365
Secured byDigiCert
Also usesGoogle Search Console
1 subdomain · tranco_10k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat blurb.com actually stands on - every host below is a signed observation
blurb.com
A / AAAA
67.226.216.15
Blurbserves the site
NS
ns-1213.awsdns-23.orgns-1933.awsdns-49.co.ukns-58.awsdns-07.comns-707.awsdns-24.net
awsdns-23.org + awsdns-49.co.uk + moreanswers its DNS
MX
blurb-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
*.blurb.com
DigiCert Incissued its certificate
DNS Records
A 1
67.226.216.15
MX 1
0blurb-com.mail.protection.outlook.com
TXT 10
MS=ms80906568_globalsign-domain-verification=2wRqY6IrIINLY7B8Qcp-qur9HsiRTO04g4gwsMmFy3anthropic-domain-verification-ymay2r=43KOxa3kqpnjwdqo3PivaK453bcn=B2BE3EE2-7048-11EF-99FD-C0D429F9B7DFdetectify-verification=890d5e59b8211cf43e2df8c6ea4d944cgoogle-site-verification=emH8I2akIku0wpO1UafaYBrRsPoXisuuvQTVwtskzAkgoogle-site-verification=l0FAvS-seZU2dnG5j17ZBXzFLqvQQULQk3INn9qLeFElucid-verification=nqm@fyv3mht6ugr3EJMv=spf1 ip4:69.25.104.64/26 ip4:66.150.244.128/26 ip4:64.30.155.0/24 include:spf.protection.outlook.com include:spf-westus.emailsignatures365.com include:_spf_salesforce.blurb.com include:_spf.atlassian.net include:mail.zendesk.com include:_spf.google.com ~allv=DMARC1; p=none; pct=100; rua=mailto:IT-RUA@blurb.com,mailto:re+355448d71f9d@inbound.dmarcdigests.com; ruf=mailto:IT-RUF@blurb.com
NS 4
ns-1213.awsdns-23.orgns-1933.awsdns-49.co.ukns-58.awsdns-07.comns-707.awsdns-24.net
SOA 1
ns-707.awsdns-24.net awsdns-hostmaster.amazon.com
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
*.blurb.com |
C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 | Sun, 30 Aug 2026 23:59:59 +0000 |
DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 | Sat, 29 Mar 2031 23:59:59 +0000 |
Subdomains (1)
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_f70a8796598174e9- Output Hash
622f9aeaf68ab86d74b769bdbf6218ff2f18da881d59525158e59a447920f642- Signature
ed25519:4bb2760c415a753826d3fdcf2b8c73024b6907b419650c78cdcfea2b165a8ee32f9b84112885a5d5419254ea75ee13f90c4d6617e26b60c0950c7e780ac7d801- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast