d2l.com
Observed 2026-07-14T02:51:30.766Z (14h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byMicrosoft 365
Registered withGoDaddy.com, LLC
Also usesMiroAtlassianDocuSign
5 subdomains · education_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat d2l.com actually stands on - every host below is a signed observation
d2l.com
A / AAAA
141.193.213.20141.193.213.21
Cloudflareserves the site
NS
ns-848.awsdns-42.netns-1643.awsdns-13.co.ukns-115.awsdns-14.comns-1267.awsdns-30.org
awsdns-42.net + awsdns-13.co.uk + moreanswers its DNS
MX
d2l-com.mail.protection.outlook.com
Microsoft 365receives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.d2l.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/3
TLS issuernot observed
Behind Cloudflareyes
Response time183 ms
DNS resolutionNOERROR
Redirect chain
https://www.d2l.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 2
141.193.213.20141.193.213.21
MX 1
0d2l-com.mail.protection.outlook.com
TXT 17
spf2.0/praMS=ms23659610v=verifydomain MS=4267811miro-verification=06bc21582bdff884c374b2ca53957ea46443cec6atlassian-domain-verification=kCTOf0E7/4vyoeAvY17q60SEqgnI2ib+JUxezY/LxmYDSMi9BvNZI2SYXYV8i01Dopenai-domain-verification=dv-GnofXAAGvBieBe1drOfRbxVmapple-domain-verification=MhNSdTCT8NE7cR7Afloat-verification-code-b475ab31-a2d3-4554-bfb7-e0d46854a12200d6100000080toeaqsmartsheet-site-validation=3bptDn138gO8MYcmCefdnebsCFROf4Bc
NS 4
ns-848.awsdns-42.netns-1643.awsdns-13.co.ukns-115.awsdns-14.comns-1267.awsdns-30.org
SOA 1
ns-1643.awsdns-13.co.uk awsdns-hostmaster.amazon.com
CAA 11
issue amazon.comissuewild digicert.comissuewild amazon.comissue pki.goog; cansignhttpexchanges=yesissue letsencrypt.orgissuewild ssl.comissue digicert.comissuewild pki.goog; cansignhttpexchanges=yesissue ssl.comiodef mailto:itinfrastructureengingeering@d2l.com
TLS Certificates (0)
None.
Subdomains (5)
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
eb94de4a-5e5c-4a0e-b57a-d984dd1a31c2- Output Hash
66519eed88f3f10424db8eb251ab8b627b9986c2b3721a9814b99146653a3207- Signature
ed25519:3d0bd724f5a7068db3ef4b89a2dd69342e7759b7f9bae6aab3647b4eeaed092c57e596ba89d33fe97f54d897755b516c31e98db6ebeaa6cd902bb2c7cb383401- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast