bisd.net
Observed Aug 16, 2026, 06:44 UTC (8h 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 onCloudflare
CloudflareEmail byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's EncryptRegistered withNetwork Solutions, LLC
Also usesGoogle Search ConsoleJamfCisco
Google Search Console
Jamf
Ciscomajestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bisd.net actually stands on - every host below is a signed observation
bisd.net
A / AAAA
104.17.71.73
Cloudflareserves the site
NS
ns10.digicertdns.comns15.digicertdns.netns14.digicertdns.netns13.digicertdns.net+2 more
digicertdns.com + digicertdns.netanswers its DNS
MX
aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
bisd.net
Let's Encryptissued its certificate
DNS Records
A 1
104.17.71.73
MX 5
1aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com
TXT 7
google-site-verification=uoO-zeQCE8WsSaJ95p9H6a27IG4AVqPOppw_ahWl_4sjamf-site-verification=-cfu6mNWXbEpasnBR0_M0ggoogle-gws-recovery-domain-verification=40454598cisco-ci-domain-verification=2adbb0707a1060fb1932ad830a88ea81f6e4d6e6e6c7877c9c9bfcf632a942c1dt0yp7s0yh99wrzc73tm4kh6xq9zy056google-site-verification=KPHNCgPpVcY-16PhZKRKH2nCY5b9WLAJwWUJpY0XQPEv=spf1 ip4:8.12.72.20 ip4:66.195.143.26 include:_spf.google.com include:_spf.psm.knowbe4.com include:emsd1.com include:customerspf.schoolmessenger.com ~all
NS 6
ns10.digicertdns.comns15.digicertdns.netns14.digicertdns.netns13.digicertdns.netns12.digicertdns.comns11.digicertdns.com
SOA 1
ns10.digicertdns.com dns.digicertdns.com
DMARC_RECORDS 1
v=DMARC1; p=reject; rua=mailto:zach.boren@bisd.net, mailto:steve.messinger@bisd.net; aspf=s; adkim=s
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
bisd.net |
C=US, O=Let's Encrypt, CN=YE1 | Sun, 04 Oct 2026 06:58:29 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_bb4e183fc175b5b1- Output Hash
9d5922d7ac382e4b092c3acbda535e4497956d510a2d260da2ec136acb34450d- Signature
ed25519:af9ff984a9ecf84af58ea0f7297e29847baa986e956b7ddcf2008625656664b6c9800016c0b0b0b9695cd02cef0d8156c27a45830828a4ac2686a97232717005- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast