usb.ac.ir
Observed Jul 27, 2026, 21:59 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.
Not responding
Email byGoogle (SPF sender)
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat usb.ac.ir actually stands on - every host below is a signed observation
usb.ac.ir
A / AAAA
80.191.172.13
unattributedserves the site
NS
ns2.usb.ac.irns1.usb.ac.ir
ac.iranswers its DNS
MX
mail.usb.ac.irwebmail.usb.ac.ir
Google (SPF sender)receives its email
DNS Records
A 1
80.191.172.13
MX 2
20mail.usb.ac.ir10webmail.usb.ac.ir
TXT 7
google-site-verification=6gwRFdTjn62QVdSUvSB698e1YLejLAQCHmq0JBgx1Ncv=spf1 +a mx include:_spf.google.com include:_spf.mail.yahoo.com ip4:80.191.172.15 ip4:87.107.186.16 ~allgoogle-site-verification=3orV2rFFBGXb8hC1OgPsvzIWfm7BrvaxrQl6JYD_9Vsyahoo-verification-key=/xd7C10Kepz8J5wUA7vcV9tY2Ttib7gxXQ4fsrkM7b4=yahoo-verification-key=c8c6TFSYHGB9RYFnAljj3rLY282Waqsktyz22TJ1E9Y=1618cbbdd64f6203778d1566455dd6b92fe1e08dbf9d4fb306e09a63dd6179bv=DMARC1; p=quarantine; rua=mailto:postmaster@usb.ac.ir; ruf=mailto:postmaster@usb.ac.ir; fo=0; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400; sp=none
NS 2
ns2.usb.ac.irns1.usb.ac.ir
SOA 1
ns1.usb.ac.ir hostmaster
TLS Certificates (0)
None.
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_261bfb3128148687- Output Hash
310c84b15981883ece65269e3eccf16297acacae141bfba5d586b3d0cd6cfd65- Signature
ed25519:7add96310e59211a864535e3807d2081217bea9fd29fbb369785f48a696794ad9ee74e762ecb3d14c613714a1ed624d4fac42eba28304c66da9c43b2a430410c- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast