rtd.com

Observed Jul 26, 2026, 06:28 UTC (6d 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

Email byMicrosoft 365

Secured byLet's Encrypt

1 subdomain · majestic

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

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

rtd.com

A / AAAA

34.174.138.208

unattributedserves the site

ns1-08.azure-dns.comns2-08.azure-dns.netns3-08.azure-dns.orgns4-08.azure-dns.info

azure-dns.com + azure-dns.net + moreanswers its DNS

rtd-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

rtd.com

Let's Encryptissued its certificate

DNS Records

A 1

34.174.138.208

MX 1

0rtd-com.mail.protection.outlook.com

TXT 7

slg1njh55506svoapd0opklvnu
MS=ms81867689
v=spf1 ip4:64.9.30.192/27 ip4:173.163.21.49/29 include:spf.messagelabs.com include:spf.protection.outlook.com -all
R0T4D20989
2nm0g0uk2egrdh9upsmiemkq47
have-i-been-pwned-verification=3da8633235dab06c862259770386753d verify txt record
v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email; pct=100

NS 4

ns1-08.azure-dns.com
ns2-08.azure-dns.net
ns3-08.azure-dns.org
ns4-08.azure-dns.info

SOA 1

ns1-08.azure-dns.com azuredns-hostmaster.microsoft.com

TLS Certificates (3)

Common Name	Issuer	Expires
`rtd.com`	C=US, O=Let's Encrypt, CN=YR1	Thu, 22 Oct 2026 02:42:41 +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.rtd.com

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 rtd.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_d8fe709b0a25d9f6
Output Hash: 3256661a1c67433cd6829a9939adcfbd70d27a41c711e626497be717144fdd69
Signature: ed25519:b63904a223ddedc4936510979f1c03b6148b1af4ecf3c7becf5bb08d3052b8ce6714a0d5b4bc549d4fc9f37661edcac0dbf1c3a73dd7cb62108214b1d5e03202
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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