marcdubois.ca
Observed Aug 16, 2026, 08:57 UTC (4h 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
CloudflareSecured byLet's Encrypt
Let's EncryptRegistered withOpen Provider Inc.
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat marcdubois.ca actually stands on - every host below is a signed observation
marcdubois.ca
A / AAAA
172.67.208.139104.21.77.1302606:4700:3035::6815:4d822606:4700:3037::ac43:d08b
Cloudflareserves the site
NS
abdullah.ns.cloudflare.comsavanna.ns.cloudflare.com
cloudflare.comanswers its DNS
TLS
marcdubois.ca
Let's Encryptissued its certificate
DNS Records
A 2
172.67.208.139104.21.77.130
AAAA 2
2606:4700:3035::6815:4d822606:4700:3037::ac43:d08b
NS 2
abdullah.ns.cloudflare.comsavanna.ns.cloudflare.com
SOA 1
abdullah.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
marcdubois.ca |
C=US, O=Let's Encrypt, CN=YE1 | Mon, 05 Oct 2026 03:12:14 +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_a55baa5a813b5549- Output Hash
0056fda3e36a50d7140e88a969771a6363e166ae11022b019875b723a09a437c- Signature
ed25519:84546945f92b05cdf31ce383404f798e83b7c17aa05c361cd8dec20dc543dcd763b7939e27e8e7c5aaac3855adf806beb842736f9431172b32e74e255d2d4b09- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast