500.co

Observed Jul 21, 2026, 19:39 UTC (19h 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 onAmazon

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesZoomHubSpotSlackAtlassianGoogle Search Console1Password

push_legacy

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

INFRASTRUCTURE MAPwhat 500.co actually stands on - every host below is a signed observation

500.co

A / AAAA

76.76.21.21

Amazonserves the site

ns1.dnsimple.comns2.dnsimple.comns3.dnsimple.comns4.dnsimple.com

dnsimple.comanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

500.co

Let's Encryptissued its certificate

DNS Records

A 1

76.76.21.21

MX 5

1aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com

TXT 29

5482A6FCE5
ZOOM_verify_Iu05MfwriVSwwnM4ywN5m2
adobe-idp-site-verification=ab2f8fa85ea6a1f91b4bb13b7e98bd01ae9daa7b48bf49fcf43a5c49feb2422f
box-domain-verification=7e40ce4e68457de70596b7af447972d97be2cc4a78c68791cb347f8094966ebd
cloudflare_dashboard_sso=569adf1cac787154448fc8df56014eb9
hubspot-domain-verification=OWI0Y2NkZWItZmI2NS00Mzk0LTkxZGItNjJiZmYzMTk2MDUy
slack-domain-verification=1geYcUe7gGK6xumq9MitK7r2yElL5PA3Spuyum1F
v=spf1 mx include:sendgrid.net include:_spf.google.com include:servers.mcsv.net include:_spf.salesforce.com include:spf.sendinblue.com include:spf.tipalti.com include:aspmx.pardot.com include:698640.spf10.hubspotemail.net ~all
zapier-domain-verification-challenge=4d7cf9f6-dc6c-46f1-881e-8883bd75c822
00D4W000005j2h4=1TBUt00000000Mb

NS 4

ns1.dnsimple.com
ns2.dnsimple.com
ns3.dnsimple.com
ns4.dnsimple.com

SOA 1

ns1.dnsimple.com admin.dnsimple.com

TLS Certificates (3)

Common Name	Issuer	Expires
`500.co`	C=US, O=Let's Encrypt, CN=YR2	Fri, 09 Oct 2026 20:18:57 +0000
`YR2`	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 (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 500.co. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/500.co">
  <img src="https://domaindrift.io/badge/500.co.svg"
       width="300" height="64" alt="DomainDrift signed observations for 500.co">
</a>

Ed25519 Receipt

Receipt ID: rcpt_98cbeedd536696d8
Output Hash: d29acb80be18de0d164602947373655d7e47b8fd57f1f80e71baa05c1d23e03b
Signature: ed25519:f64003f2fce1504353b957b6084f99291e098cf443f0222d68ef18f2ea93c71e29387581259dcfa32ad04c9ae4058f6b83436b462a5c68ff931dfc5700695b00
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/500.co