nrc.ca

Observed Jul 24, 2026, 01:22 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.

Verify this receipt yourself + Watch this domain

Up right now

Runs onShared Services Canada

Secured byEntrust Limited

Registered toGeoff Worthing

Registered withAuthentic Web Inc.

2 subdomains · tranco_100k

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

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

nrc.ca

A / AAAA

167.37.63.16

Shared Services Canadaserves the site

ns10.ent.global.gc.cans40.ent.global.gc.cans1.d-zone.cans41.ent.global.gc.ca+2 more

gc.ca + d-zone.caanswers its DNS

mx.ssan.egs-seg.gc.camx2.ssan.egs-seg.gc.ca

gc.careceives its email

TLS

nrc.canada.ca

Entrust Limitedissued its certificate

DNS Records

A 1

167.37.63.16

MX 2

10mx.ssan.egs-seg.gc.ca
50mx2.ssan.egs-seg.gc.ca

TXT 4

MS=ms91027210
bcn=DA3FF698-758D-11ED-B627-B6048A89A8A7
v=spf1 a:smtp.nrc.ca ip4:132.246.15.88 ip4:132.246.15.89 ip4:132.246.15.108 ip4:132.246.15.109 ip4:132.246.15.110 ip4:132.246.15.111 ip4:132.246.15.112 ip4:132.246.15.113 ip4:167.37.0.0/16 include:emrs._spf.ssc-spc.gc.ca include:slms._spf.ssc-spc.gc.ca ~all
v=DMARC1; p=none; sp=none; rua=mailto:dmarc@cyber.gc.ca

NS 6

ns10.ent.global.gc.ca
ns40.ent.global.gc.ca
ns1.d-zone.ca
ns41.ent.global.gc.ca
ns2.d-zone.ca
ns11.ent.global.gc.ca

SOA 1

ns10.ent.global.gc.ca ssc\.enterpriseddi-entreprise\.spc.ssc-spc.gc.ca

SRV 3

connect.nrc.ca:5060 p0
connect.nrc.ca:5061 p0
owa.nrc.ca:443 p0

TLS Certificates (2)

Common Name	Issuer	Expires
`nrc.canada.ca`	C=CA, O=Entrust Limited, CN=Entrust OV TLS Issuing RSA CA 2	Sun, 01 Nov 2026 23:59:59 +0000
`Entrust OV TLS Issuing RSA CA 2`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46	Fri, 10 Dec 2027 23:59:59 +0000

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 receipt

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

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

Ed25519 Receipt

Receipt ID: rcpt_394dc5cc29d775c0
Output Hash: dd72e4ad84b0182b8b4165f3e858604cb276d3f6bb1eaa2581c5b47bcfe0a86a
Signature: ed25519:308aa4bcbd7a2f56b6301cdd790970dc3ab34126b30d9c7e9acc618b1d0fd0f519aedc0a487cee1125211f2823b53154bf68bde624289f00c61ff7bbdd80a40c
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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