rsrconcrete.ca

Observed Jul 28, 2026, 21:07 UTC (14h 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.

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Up right now

Secured byLet's Encrypt

7 subdomains · majestic

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat rsrconcrete.ca actually stands on - every host below is a signed observation

rsrconcrete.ca

A / AAAA

173.209.32.67

unattributedserves the site

ns1.whc.cans2.whc.cans3.whc.ca

whc.caanswers its DNS

TLS

mail.rsrconcrete.ca

Let's Encryptissued its certificate

DNS Records

A 1

173.209.32.67

TXT 1

v=spf1 ip4:173.209.32.66 include:spf.web-dns1.com +a +mx +ip4:54.39.100.229 ~all

NS 3

ns1.whc.ca
ns2.whc.ca
ns3.whc.ca

SOA 1

ns1.whc.ca sysadmin.whc.ca

TLS Certificates (3)

Common Name	Issuer	Expires
`mail.rsrconcrete.ca`	C=US, O=Let's Encrypt, CN=YR1	Tue, 01 Sep 2026 01:14:37 +0000
`YR1`	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 (7)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for rsrconcrete.ca. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/rsrconcrete.ca">
  <img src="https://domaindrift.io/badge/rsrconcrete.ca.svg"
       width="300" height="64" alt="DomainDrift signed observations for rsrconcrete.ca">
</a>

Ed25519 Receipt

Receipt ID: rcpt_5152cb8d6c7b8a15
Output Hash: 784e17f33fa60a008766da9d45a4cc408aa5b60b91330e34615add16c875cb88
Signature: ed25519:abe74dd73c6878eb0452f9fcb0ced6bcfa7634bec2fb80ef15d636389ff9f3952bda42273253edc165ac79deb1be6befd15bfbfa1cbcc0439440b4e5cd92070b
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/rsrconcrete.ca