jhu.edu

Observed Jul 18, 2026, 12:06 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onCloudflare

Secured byInternet2

Also usesZoomHubSpotDocuSignFacebook/MetaGoogle Search ConsoleAtlassian

16 subdomains · education_expanded

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat jhu.edu actually stands on - every host below is a signed observation

jhu.edu

A / AAAA

128.220.193.2

Cloudflareserves the site

ens1.jhu.eduens1.jhmi.edu

jhu.edu + jhmi.eduanswers its DNS

smtp.johnshopkins.edu

johnshopkins.edureceives its email

TLS

jhu.edu

Internet2issued its certificate

DNS Records

A 1

128.220.193.2

MX 1

1smtp.johnshopkins.edu

TXT 40

addevent=verification
AppId=000000004C0DFC04
e2ma-verification=e15fb
6d0krd2r1m6d4rfp4y16ryvjq72x1wj4
B46963ED2CDBA64064F249DEE16C5EAA
wkq43htjtz52dntbmtjw17pv0tqbbv0m
xr53hrygrc5x351yc9rts2ggkv08kb3k
ZOOM_verify_HBPKAym7Tz-eFLcbrv5qMQ
asv=5da62ba592bab3d1542dbbf409a762ee
ca3-54ded686d84a42a6a8e74e31814ecad8

NS 2

ens1.jhu.edu
ens1.jhmi.edu

SOA 1

ens1.jhu.edu empty.empty

SRV 1

sip.jhu.edu:5269 p0

TLS Certificates (3)

Common Name	Issuer	Expires
`jhu.edu`	C=US, O=Internet2, CN=InCommon ECC Server CA 2	Sat, 31 Oct 2026 23:59:59 +0000
`InCommon ECC Server CA 2`	C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust ECC Certification Authority	Mon, 15 Nov 2032 23:59:59 +0000
`USERTrust ECC Certification Authority`	C=GB, ST=Greater Manchester, L=Salford, O=Comodo CA Limited, CN=AAA Certificate Services	Sun, 31 Dec 2028 23:59:59 +0000

Subdomains (16)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for jhu.edu. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/jhu.edu">
  <img src="https://domaindrift.io/badge/jhu.edu.svg"
       width="300" height="64" alt="DomainDrift signed observations for jhu.edu">
</a>

Ed25519 Receipt

Receipt ID: 4f07675b-eb16-45f7-b84d-9c1ce5f1656c
Output Hash: 654463379ce6f11bf8b1031df4b52146a6a7ddcacb364bc7e9fc92e2c87702d9
Signature: ed25519:ff57dd2830d34361b07fd780ef444710672f1527defc44174b82c8c954feb24ba481d274b1a1155172a68dff9069f31816fc8ab466315c2434a5ebec67defc07
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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