usfirst.org
Observed Jul 27, 2026, 22:55 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.
Responding, no home page
Email byMicrosoft 365
Secured byStarfield Technologies
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat usfirst.org actually stands on - every host below is a signed observation
usfirst.org
A / AAAA
192.124.249.158
unattributedserves the site
NS
ns-1078.awsdns-06.orgns-1775.awsdns-29.co.ukns-20.awsdns-02.comns-724.awsdns-26.net
awsdns-06.org + awsdns-29.co.uk + moreanswers its DNS
MX
usfirst-org.mail.protection.outlook.com
Microsoft 365receives its email
TLS
usfirst.org
Starfield Technologiesissued its certificate
DNS Records
A 1
192.124.249.158
MX 1
10usfirst-org.mail.protection.outlook.com
TXT 6
BcBfZ/WAPQIYgefpOPrm3iTi2iPcnx9puFIsDAEVF9BTFA0y7z0ScK/h0aa3WN9yefEQHtAq/8EfQqf+D2LwKA==MS=ms96441857emjoi8pg8d7s2j4p0s77tb0ovfgoogle-site-verification=xK0tlZQnNxudl8fTgGWEISLR-0VNxdUKNbP2VPhh5ecv=spf1 include:spf.protection.outlook.com ip4:64.222.71.132 allv=DMARC1; p=quarantine; rua=mailto:dmarc@usfirst.org
NS 4
ns-1078.awsdns-06.orgns-1775.awsdns-29.co.ukns-20.awsdns-02.comns-724.awsdns-26.net
SOA 1
ns-1775.awsdns-29.co.uk awsdns-hostmaster.amazon.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
usfirst.org |
C=US, O=Starfield Technologies, CN=Starfield TLS Intermediate CA DV - R1v1 | Sat, 17 Oct 2026 19:07:26 +0000 |
Starfield TLS Intermediate CA DV - R1v1 |
C=US, O=Starfield Technologies, CN=Starfield TLS Root CA - R1 | Thu, 23 Aug 2040 11:59:59 +0000 |
Starfield TLS Root CA - R1 |
C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2 | Thu, 31 Dec 2037 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_fcabc940832f668f- Output Hash
7e9c73e6bd57c32b558aec9527e0b0af83ecee61e84ffcfdbdef5ada3db1264b- Signature
ed25519:40265c0086b3455bd7a7c3f9f430b725f7af93a69a49be131048112922ade95359a1fb2499e0fcc2a548d3a9ecd0e4b744857b1baa72d59a4bf634fd53bb5e0e- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast