grc.com

Observed Jul 18, 2026, 13:20 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onLevel 3 Parent

Registered withTucows Domains Inc.

Also usesGoogle Search Console

tranco_40k

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

INFRASTRUCTURE MAPwhat grc.com actually stands on - every host below is a signed observation

grc.com

A / AAAA

4.79.142.200

Level 3 Parentserves the site

ns6.customer.level3.netns4.customer.level3.net

level3.netanswers its DNS

grc.com

grc.comreceives its email

DNS Records

A 1

4.79.142.200

MX 1

10grc.com

TXT 7

_bpovimyxhv2xbvowiwnvlkhz27b4z4f
7pdq8vl28psslbzzx8g9s3pbwjvksk24
_e9izydias4fdktb7grdz8lx129rf0kz
v=spf1 ip4:4.79.142.192/28 a:client.grc.com a:grc.com -all
google-site-verification=lTHvpojcfPIYXGkOqbku5TcOkpo52Exo-qWuQJi5bpw
v=DMARC1; p=reject; sp=reject; rua=mailto:re+2d18e30bd27e@inbound.dmarcdigests.com; adkim=s; aspf=s; fo=1; pct=100
v=BIMI1;l=https://vmc.digicert.com/01189704-9dc1-41c4-9340-caf345cdb53c.svg;a=https://vmc.digicert.com/01189704-9dc1-41c4-9340-caf345cdb53c.pem

NS 2

ns6.customer.level3.net
ns4.customer.level3.net

SOA 1

grc.com dns2005.grc.com

CAA 1

issue "digicert.com"

TLS Certificates (0)

None.

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; nothing leaves your machine.

Verify this receipt

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

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

Ed25519 Receipt

Receipt ID: 4c681327-93e6-4a69-9d1e-2eb823142bcb
Output Hash: 3623e3039b878630818c4f8106a60b0c5a14c7f52bd896465eb27ce646b264fa
Signature: ed25519:42897baede443979d364fe13fa4606186a5169c0d0f8c4ebd3f02ac21ab0ab10cf3273ba2a3f5582d446596ed0dfbcd0a771dc4e676dbc31b8771aa0d06c9c05
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/grc.com