roi.se
Observed Jul 26, 2026, 06:21 UTC (2d 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 Console
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat roi.se actually stands on - every host below is a signed observation
roi.se
A / AAAA
188.114.231.215
unattributedserves the site
NS
ns2.hostsrecord.comns1.hostsrecord.com
hostsrecord.comanswers its DNS
MX
roi-se.mail.protection.outlook.com
Microsoft 365receives its email
TLS
roi.se
Let's Encryptissued its certificate
DNS Records
A 1
188.114.231.215
MX 1
0roi-se.mail.protection.outlook.com
TXT 6
v=spf1 include:sendersrv.com include:spf.mandrillapp.com include:spf.protection.outlook.com include:_spf.reliablemail.org -allMS=ms89773972d1f87be2-ec8f-494f-bde3-b4fef2d08cddgoogle-site-verification=hBiDgnz3Vo7FSHQ5WVo2ZXrCNXlPgTNuZT9hLcI4rXkeoid-domain-verification=d1f87be2-ec8f-494f-bde3-b4fef2d08cddv=DMARC1; p=none;
NS 2
ns2.hostsrecord.comns1.hostsrecord.com
SOA 1
ns1.roi.se admin.roi.se
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
roi.se |
C=US, O=Let's Encrypt, CN=YR2 | Thu, 01 Oct 2026 03:09:16 +0000 |
YR2 |
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_ab05f48f90719c4f- Output Hash
b5fbc66c1e16677a003e775260c33b6dddea8840f6dc7533bd89aeac4b6b29b0- Signature
ed25519:16e7ff356199dc1926a1049b372ccbb5a9aa4588d9706bb65c82acaf703f12dcfc3bdd14abc1c8176413b4ffe2e8e92f33e3df777874e5c5b2560063b3332b03- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast