rtd-denver.com
Observed Jul 27, 2026, 14:28 UTC (5d 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.
Up right now
Runs onCloudflare
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesAtlassian
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rtd-denver.com actually stands on - every host below is a signed observation
rtd-denver.com
A / AAAA
104.18.2.30104.18.3.302606:4700::6812:21e2606:4700::6812:31e
Cloudflareserves the site
NS
candy.ns.cloudflare.comolof.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
rtddenver-com0i.mail.protection.outlook.com
Microsoft 365receives its email
TLS
rtd-denver.com
Let's Encryptissued its certificate
DNS Records
A 2
104.18.2.30104.18.3.30
AAAA 2
2606:4700::6812:21e2606:4700::6812:31e
MX 1
5rtddenver-com0i.mail.protection.outlook.com
TXT 8
CYYiVzJwqhuw/SHd50oEryhcOy285b6fc7LVD+cu+OaIT+ErzLeXMmnO276h3njrfQASU5EtVcVizKAGWzzZRg==MS=ms19639081_hmmh5uybng0stjb9qtdgxg4qqdujvwwadobe-idp-site-verification=76eca765f420188d85f66cb5ef8c87108e0949efa0ae1ad5fbad6920ec0111e4apple-domain-verification=oyNuE1qOG0E7MoNgatlassian-domain-verification=ZdY8/JCd5uDF/6PbvgKuA3Cb4MHlts1iRXzJtYdYDZyAZPhvCd3W5wKCHUpNMQvcv=spf1 a include:spf.protection.outlook.com include:_spf.salesforce.com include:service.govdelivery.com include:spf_c.oraclecloud.com ip4:13.108.0.0/14 ip4:208.75.120.0/22 ip4:205.207.104.0/22 ip4:160.34.15.0/24 ip4:65.114.238.134 ip4:72.18.152.155 ip4:216.146.32.161 ip4:216.146.32.188 ip4:216.146.32.187 ip4:216.146.32.186 ip4:216.146.32.185 ip4:81.93.173.201 ip4:81.93.164.103 ip4:159.183.158.11 ip4:149.72.231.47 ip4:149.72.196.66 ~allv=DMARC1; p=reject; pct=100; rua=mailto:emailerrors@rtd-denver.com;
NS 2
candy.ns.cloudflare.comolof.ns.cloudflare.com
SOA 1
candy.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
rtd-denver.com |
C=US, O=Let's Encrypt, CN=YE1 | Sun, 30 Aug 2026 15:31:26 +0000 |
YE1 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
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 receiptEd25519 Receipt
- Receipt ID
rcpt_0f9e9dbe105b100a- Output Hash
06c72be3df8ea8ab94057e3ccd07022dfa97b055630b7f5bf1ddf29cfa1efd89- Signature
ed25519:b3fc6e82823d7486fdb003dfa8c60cefab76842b9bb997c923830cd44d2ffa398619d0f01d74653c88552722ca0bd83924918939b6ff537a327c46db12c1b406- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast