nagios.org

Observed Jul 18, 2026, 13:52 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Registered witheNom, LLC

Also usesGoogle Search Console

10 subdomains · tranco_40k

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

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

nagios.org

A / AAAA

45.79.21.111

Cloudflareserves the site

greg.ns.cloudflare.compearl.ns.cloudflare.com

cloudflare.comanswers its DNS

nagios-org.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.nagios.org/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time93 ms

DNS resolutionNOERROR

Redirect chain

https://www.nagios.org/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

45.79.21.111

MX 1

0nagios-org.mail.protection.outlook.com

TXT 5

pardot975333=4238db43eaa7ad5824c795ab7d5213d83fbb98ad6520675e1edd818709d59e6b
MS=ms27324566
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:cust-spf.exacttarget.com include:spf.mailanyone.net a:nagios.org include:electric.net ~all
google-site-verification=a3i3pt__lEaEwHT_uu6JztSOAjv0rOLoPonaHHePmu4
v=DMARC1; p=none; sp=none; rua=mailto:58c84aab8135466a901de221ff646040@dmarc-reports.cloudflare.net; adkim=r; aspf=r

NS 2

greg.ns.cloudflare.com
pearl.ns.cloudflare.com

SOA 1

greg.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (10)

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

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

Ed25519 Receipt

Receipt ID: af7c5b4e-8556-4db1-8106-4cbd1b48a7f3
Output Hash: 5303401a2ecc829f7b56be1f12998d0389623b5db122baa11a4e2f82291d5e47
Signature: ed25519:0f7247dc5cfd9cba7a23cf55780523b31a6548900054f56995a74656c2556145487c3fcd4cddb644ebe5a5349af9ba71a5511d24abc0728d4377423bcdc6c208
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

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