postech.ac.kr

Observed 2026-07-15T09:26:22.082Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle (SPF sender)

31 subdomains · push_legacy

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

INFRASTRUCTURE MAPwhat postech.ac.kr actually stands on - every host below is a signed observation

postech.ac.kr

A / AAAA

141.223.5.166

Cloudflareserves the site

ns.postech.ac.krns2.postech.ac.kr

ac.kranswers its DNS

sniper.postech.ac.kr

Google (SPF sender)receives its email

HTTPS probe

redirect Redirecting (3xx) 302 → https://postech.ac.kr/index.do

HTTP status302

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time859 ms

DNS resolutionNOERROR

Redirect chain

https://postech.ac.kr/index.do

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

141.223.5.166

MX 1

5sniper.postech.ac.kr

TXT 5

v=spf1 ip4:141.223.1.111 ip4:141.223.1.114 ip4:141.223.1.254 ip4:141.223.1.116 ip4:141.223.1.117 ip4:141.223.1.124 ip4:141.223.1.125 ip4:141.223.5.171 include:spf.protection.outlook.com include:mail.stibee.com include:_spf.google.com ~all
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCkDRTHKiQcMbP2pTDSIMCIg+SdysVhFzLXfGAP6N4y5i8lgRAuPN/dPVH2FjWgaaUEMn6vluhLrJWQ9COcOR3kNHTnK4yTOP5+5exW4bsdgWnBzYHC7/UtHIyZlz9URfjzt2oUOUAqkNj85junvMNQA/dx4lvfltFg5ZF5/q4qWQIDAQAB
_31oz9pq9kfzn2exu282dnup1hp8asn5
I/EfFRLSDlknsWzmYM7q5v4wjC+aWfPJ93g778mP1eT0CfBmeNo/N/rnoSsq/ncTgy+rBHHi98J45+pk3RA83g==
v=DMARC1; p=quarantine; rua=mailto:mailadmin@postech.ac.kr; ruf=mailto:mailadmin@postech.ac.kr

NS 2

ns.postech.ac.kr
ns2.postech.ac.kr

SOA 1

ns.postech.ac.kr domain.postech.ac.kr

TLS Certificates (0)

None.

Subdomains (31)

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 postech.ac.kr. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 02c3d037-1e61-4d9e-bb12-4ab1fc8a6def
Output Hash: 73cd80e500dbb3956f8529c2b9b5f77d37f7c6beb9682c3c79462c6c8c5dbc62
Signature: ed25519:76cbe92fbacea1479bf1f10ff9eaca41bfe58c2bef5d1e015acf688641a6996cfc3a84eee0afa0803bed210582b4851c5e7a7876963dd078ee2c284a061a150a
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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