ztr.com
Observed Aug 2, 2026, 20:47 UTC (2h 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
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesGoogle Search Console1PasswordAtlassian
1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ztr.com actually stands on - every host below is a signed observation
ztr.com
A / AAAA
35.206.117.184
unattributedserves the site
NS
ns51.worldnic.comns52.worldnic.com
worldnic.comanswers its DNS
MX
ztr-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.ztr.com
Let's Encryptissued its certificate
DNS Records
A 1
35.206.117.184
MX 1
0ztr-com.mail.protection.outlook.com
TXT 7
Sendinblue-code:c1ab4491465f350fa7fb99181ea14130google-site-verification=iIFeYT8tdwNzhwjwDZprwvCN1PRiozP6zmKmKLJGMWUMS=ms42899558v=spf1 include:spf.sendinblue.com include:spf.protection.outlook.com include:infosecmail.net -all1password-site-verification=7IKC5ZIGLFHKDJNGLQLWSN2STU_q5inebha204wk4j5ljz2agyz22n7javatlassian-domain-verification=cUq6I7QupsIZkvuSqGUmWySZRHEapmrmbTN2UyI3nvMa71btgE9wFRf6nHhFAOhv
NS 2
ns51.worldnic.comns52.worldnic.com
SOA 1
NS51.WORLDNIC.com namehost.WORLDNIC.com
DMARC_RECORDS 1
v=DMARC1; p=reject; sp=reject; rua=mailto:emailalerts@ztr.com; ruf=mailto:emailalerts@ztr.com; rf=afrf; pct=100; ri=86400
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.ztr.com |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 19 Oct 2026 14:28:25 +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)
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_d9dd9a184ed0724d- Output Hash
789d38e752fdb76e02dd38dbd968f9ab1f49cec79e71993fa42851e19d665aef- Signature
ed25519:8c4055bd99eceaceede8066e0d1038a43804a7a10dc751668839c09d55c45ff959462842ad5785eb1ae4068903285968a5f4abb513b80e731412f086c1056f03- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast