bigbluebutton.org
Observed Jul 24, 2026, 01:47 UTC (5h 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
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search Console
1 subdomain · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bigbluebutton.org actually stands on - every host below is a signed observation
bigbluebutton.org
A / AAAA
104.248.105.210
unattributedserves the site
NS
ns-1208.awsdns-23.orgns-1542.awsdns-00.co.ukns-402.awsdns-50.comns-843.awsdns-41.net
awsdns-23.org + awsdns-00.co.uk + moreanswers its DNS
MX
aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
bigbluebutton.org
Let's Encryptissued its certificate
DNS Records
A 1
104.248.105.210
MX 5
1aspmx.l.google.com10aspmx2.googlemail.com20aspmx3.googlemail.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 3
google-site-verification=0qqMwOo0BX7GGpedLJPtXI2xV1Su3f703ecNYDfC9Ysv=spf1 include:_spf.google.com include:mailgun.org include:spf.mandrillapp.com ~allv=DMARC1; p=quarantine;
NS 4
ns-1208.awsdns-23.orgns-1542.awsdns-00.co.ukns-402.awsdns-50.comns-843.awsdns-41.net
SOA 1
ns-843.awsdns-41.net awsdns-hostmaster.amazon.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
bigbluebutton.org |
C=US, O=Let's Encrypt, CN=YR2 | Sat, 12 Sep 2026 21:34:06 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 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_cdb0aadd6a0d5dc3- Output Hash
aea9cdf838a6064c64dfee308c441eb463d0ef713393849467c44a9c36bd684c- Signature
ed25519:c1698a790016cde8668c5ce62fdc3399c942796c6142d2ff8e3ea746d227eaa1f69d9207c6eed2d655407aebfaefbf1c507be60cf557a72595f7fc1321824704- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast