blurb.com
Observed 2026-07-14T00:31:56.640Z (23h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byMicrosoft 365
Also usesGoogle Search Console
69 subdomains · 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
Cloudflareserves the site
NS
ns-58.awsdns-07.comns-1213.awsdns-23.orgns-1933.awsdns-49.co.ukns-707.awsdns-24.net
awsdns-07.com + awsdns-23.org + moreanswers its DNS
MX
blurb-com.mail.protection.outlook.com
Microsoft 365receives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.blurb.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time92 ms
DNS resolutionNOERROR
Redirect chain
https://www.blurb.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
67.226.216.15
MX 1
0blurb-com.mail.protection.outlook.com
TXT 11
google-site-verification=l0FAvS-seZU2dnG5j17ZBXzFLqvQQULQk3INn9qLeFEdetectify-verification=890d5e59b8211cf43e2df8c6ea4d944c_globalsign-domain-verification=2wRqY6IrIINLY7B8Qcp-qur9HsiRTO04g4gwsMmFy3bcn=B2BE3EE2-7048-11EF-99FD-C0D429F9B7DFgoogle-site-verification=emH8I2akIku0wpO1UafaYBrRsPoXisuuvQTVwtskzAklucid-verification=nqm@fyv3mht6ugr3EJMMS=ms80906568v=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 ~allanthropic-domain-verification-ymay2r=43KOxa3kqpnjwdqo3PivaK453v=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-58.awsdns-07.comns-1213.awsdns-23.orgns-1933.awsdns-49.co.ukns-707.awsdns-24.net
SOA 1
ns-707.awsdns-24.net awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
Subdomains (13)
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
44403e85-a295-4d76-8af2-454a5d158566- Output Hash
4131e83d8cd9f2d932db26e4160da140a9bc9dc380662e01d4988c668592287e- Signature
ed25519:a3dba398ae88761020d71688dc27e86781751e8e25bd58472642df121f0a44f9dd945427d2e47b3d59afbb34dfe0413aa72d32985f6d7ea3ed0e203cf3e5bd09- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast