mat.phd

Observed Aug 2, 2026, 19:54 UTC (12d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of mat.phd was taken 12d ago

mat.phd is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mat.phd under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch mat.phd Watching a domain needs a DRM3 account. The reading above stays free and public either way.

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Up right now

Email byProtonMail

Secured byLet's Encrypt

Also usesProton Mail

IPv6 · domcop

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

INFRASTRUCTURE MAPwhat mat.phd actually stands on - every host below is a signed observation

mat.phd

A / AAAA

185.199.108.153185.199.109.153185.199.111.153185.199.110.153+4 more

2606serves the site

ns-cloud-b2.googledomains.comns-cloud-b4.googledomains.comns-cloud-b3.googledomains.comns-cloud-b1.googledomains.com

googledomains.comanswers its DNS

mailsec.protonmail.chmail.protonmail.ch

ProtonMailreceives its email

TLS

mat.phd

Let's Encryptissued its certificate

DNS Records

A 4

185.199.108.153
185.199.109.153
185.199.111.153
185.199.110.153

AAAA 4

2606:50c0:8002::153
2606:50c0:8000::153
2606:50c0:8001::153
2606:50c0:8003::153

MX 2

20mailsec.protonmail.ch
10mail.protonmail.ch

TXT 2

protonmail-verification=dc540c95a342d33c453385cea73b1102078976f9
v=spf1 include:_spf.protonmail.ch ~all

NS 4

ns-cloud-b2.googledomains.com
ns-cloud-b4.googledomains.com
ns-cloud-b3.googledomains.com
ns-cloud-b1.googledomains.com

SOA 1

ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com

DMARC_RECORDS 1

v=DMARC1; p=quarantine

TLS Certificates (3)

Common Name	Issuer	Expires
`mat.phd`	C=US, O=Let's Encrypt, CN=YR1	Sat, 12 Sep 2026 06:41:18 +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; the only network request the check makes is for the published public keys.

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Ed25519 Receipt

Receipt ID: rcpt_c741a25226e02a0c
Output Hash: 4fce303558e80e4a8aafa6ec7fd64be0ad7c2b67afe4af9d97db3f6643cf1a3a
Signature: ed25519:59be939d2e40d131fc7e092ed2593a7509db38493d85e62ec2357417b07929513660509256aefd4d5bbf497dfdad3cec4e6cabcd3753489202fd47c0661a0f02
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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