ccsf.edu
Observed 2026-07-12T19:43:05.421Z (22h 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
IPv6 · 2 subdomains · education_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ccsf.edu actually stands on - every host below is a signed observation
ccsf.edu
A / AAAA
104.18.27.71104.18.26.712606:4700::6812:1a472606:4700::6812:1b47
Cloudflareserves the site
NS
blue.foundationdns.orgblue.foundationdns.comblue.foundationdns.net
foundationdns.org + foundationdns.com + moreanswers its DNS
MX
ccsf-edu.mail.protection.outlook.com
Microsoft 365receives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → http://www.ccsf.edu/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time72 ms
DNS resolutionNOERROR
Redirect chain
http://www.ccsf.edu/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 2
104.18.27.71104.18.26.71
AAAA 2
2606:4700::6812:1a472606:4700::6812:1b47
MX 1
0ccsf-edu.mail.protection.outlook.com
TXT 10
amazonses:RWNh9W/jj1Yee1YahLI6K3tZSiEhvFkvjKiVSJDFwL4=RWNh9W/jj1Yee1YahLI6K3tZSiEhvFkvjKiVSJDFwL4=53122963B7EA733B94D3EA94A7B0CF04google-site-verification=KoG9Dss8-CR0etYj7079Z1eAEE2zLlZMD8oHTthUx4Usending_domain1073713=3ec4e3e553b9bd0d0ea63aaeba996085ccdd25a47379d4a88a93a64b281b63fev=spf1 include:spf1.ccsf.edu include:spf2.ccsf.edu ~all618FE7F6E809C4CD199E85C555BBF225adobe-sign-verification=e6166d8e7d0dc2f98461305851c910ecpardot1073713=67721d8277e1238534cd9c8991e1785420cff5d0f36f7aa8e7963ce01daa5e04v=DMARC1; p=quarantine; aspf=s; sp=none; pct=20; rua=mailto:ar-dmarc@ccsf.edu; ruf=mailto:forensics-dmarc@ccsf.edu; fo=1
NS 3
blue.foundationdns.orgblue.foundationdns.comblue.foundationdns.net
SOA 1
blue.foundationdns.com dns.cloudflare.com
TLS Certificates (0)
None.
Subdomains (2)
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
4a7ede0f-3574-44c9-bb91-a9cdd7bdcd52- Output Hash
b03efd4cfdb7acb63a0fc9d37d3bb4c01d163f0c12d5fcff322df7d685566237- Signature
ed25519:918af5c2863714aacdac44a5a71cf32d72097c9a065083709036936b1a24e04e434605079b934f6b294b6837d5c2029fb856655074abebc17ac84e9d18a93e08- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast