top500.org

Observed 2026-07-18T13:42:23.671930744+00:00 (4h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle Workspace

Secured byLet's Encrypt

Registered withGoDaddy.com, LLC

Also usesGoogle Search Console

1 subdomain · tranco_40k

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

INFRASTRUCTURE MAPwhat top500.org actually stands on - every host below is a signed observation

top500.org

A / AAAA

3.125.90.157

Amazonserves the site

ns55.domaincontrol.comns56.domaincontrol.com

domaincontrol.comanswers its DNS

alt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.com+3 more

Google Workspacereceives its email

TLS

top500.org

Let's Encryptissued its certificate

DNS Records

A 1

3.125.90.157

MX 7

20alt1.aspmx.l.google.com
30alt2.aspmx.l.google.com
10aspmx.l.google.com
40aspmx2.googlemail.com
50aspmx3.googlemail.com
50aspmx4.googlemail.com
50aspmx5.googlemail.com

TXT 3

v=spf1 include:_spf.google.com a mx ip4:3.125.90.157 ip4:35.158.214.49 ip4:52.28.212.99 -all
google-site-verification=YVDkc451NALv2c7LY40RmIH0SvU8PUducMmwLPYoLWY
v=DMARC1; p=reject; rua=mailto:anas@top500.org, mailto:anas@top500.org; adkim=s; aspf=s

NS 2

ns55.domaincontrol.com
ns56.domaincontrol.com

SOA 1

ns55.domaincontrol.com dns.jomax.net

TLS Certificates (3)

Common Name	Issuer	Expires
`top500.org`	C=US, O=Let's Encrypt, CN=YR1	Fri, 28 Aug 2026 20:44:49 +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 (1)

www.top500.org

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 top500.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/top500.org">
  <img src="https://domaindrift.io/badge/top500.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for top500.org">
</a>

Ed25519 Receipt

Receipt ID: 47bff5e0-3e07-49a9-a7a2-ea0dffa69eb6
Output Hash: 69537e971d2373eeebcf4281dce4b10846e36c31f084af36c63664eeb545aa6e
Signature: ed25519:4a069074bd03bc7204731de07672f0858c3266aa4aa2ce528b9485b7331c2d37ac78473f00f29f19ca01e1a390afd54845e6426351d9728e49f321dd43e4980e
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/top500.org