rubensteintech.com
Observed Jul 25, 2026, 17:17 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 byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search ConsoleHubSpot
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rubensteintech.com actually stands on - every host below is a signed observation
rubensteintech.com
A / AAAA
54.203.180.53
Cloudflareserves the site
NS
ns2.rubensteintech.comns1.rubensteintech.com
rubensteintech.comanswers its DNS
MX
ALT2.ASPMX.L.GOOGLE.comALT3.ASPMX.L.GOOGLE.comALT1.ASPMX.L.GOOGLE.comALT4.ASPMX.L.GOOGLE.com+1 more
Google Workspacereceives its email
TLS
rubensteintech.com
Let's Encryptissued its certificate
DNS Records
A 1
54.203.180.53
MX 5
50ALT2.ASPMX.L.GOOGLE.com100ALT3.ASPMX.L.GOOGLE.com50ALT1.ASPMX.L.GOOGLE.com100ALT4.ASPMX.L.GOOGLE.com10ASPMX.L.GOOGLE.com
TXT 8
asv=19f2f386a3748194ec19f3bf1523da29google-site-verification=SeVAx54iqCh-swOIOqCw4kt576H9ZKLX3VbPoIypDV4apple-domain-verification=x22iI173YVCTcdqXspf2.0/pra a mx include:_spf.rubensteintech.com include:_spf.google.com include:1845887.spf03.hubspotemail.net ~allgoogle-site-verification=_sH_wBul9GGwvjxorfDK7hImPcDfoDp8ARrdmiFl_u4v=spf1 a mx include:_spf.rubensteintech.com include:_spf.google.com include:1845887.spf03.hubspotemail.net ~allhave-i-been-pwned-verification=1e1d4efb227d8e46b462ea5621742323v=DMARC1; p=reject; pct=100; rua=mailto:postmaster@rubensteintech.com
NS 2
ns2.rubensteintech.comns1.rubensteintech.com
SOA 1
ns1.rubensteintech.com hostmaster.rubensteintech.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
rubensteintech.com |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 28 Sep 2026 18:16:34 +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 (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_da5a23ac3ea1a915- Output Hash
7cb8beb03826cef26e27a9117efa56a64d962907466e137f206b27d6b8848178- Signature
ed25519:a709f4466221851dd9234d12fbcd475a0bc125baa6fcc37725998eaec35d674ba28eb5ae615ff63660f2c9a93a68a37cf963e5ed4c0bc2cc354250f37a367909- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast