mast.is

Observed Aug 10, 2026, 04:59 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of mast.is was taken 5d ago

mast.is is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mast.is 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 mast.is Watching a domain needs a DRM3 account. The reading above stays free and public either way.

Verify this receipt yourself + Watch this domain

Up right now

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesAtlassian

majestic

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

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

mast.is

A / AAAA

52.49.138.181

unattributedserves the site

ns1.okhysing.isns2.okhysing.is

okhysing.isanswers its DNS

mast-is.mail.protection.outlook.com

Microsoft 365receives its email

TLS

mast.is

Let's Encryptissued its certificate

DNS Records

A 1

52.49.138.181

MX 1

10mast-is.mail.protection.outlook.com

TXT 8

MS=ms98551415
v9sku7i1ssgd8bqa9to25uh51
ag8voovpeq278e6ro0bmb7guo0
v=spf1 include:spf.protection.outlook.com a:relay.hysing.is a:mx1.midja.is a:mx4.midja.is ip4:37.205.35.177 include:_spf.email.stefna.is -all
MS=ms79667257
atlassian-domain-verification=mhsxIDSlxog780LdV7mSkr5KaH906y0jtUaa3ra3AikSPvl5RmqS5FNPp4xl5pU0
voabfaqp9aaui5i014llimhsdn
o1agnm2c3u3ujqb2ps0k414s1j

NS 2

ns1.okhysing.is
ns2.okhysing.is

SOA 1

ns1.okhysing.is hostmaster.ok.is

DMARC_RECORDS 1

v=DMARC1; p=none; rua=mailto:mailreports@trs.is; ruf=mailto:mailreports@trs.is; fo=1

TLS Certificates (3)

Common Name	Issuer	Expires
`mast.is`	C=US, O=Let's Encrypt, CN=YR1	Tue, 13 Oct 2026 14:08:06 +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.

Verify this receipt

Ed25519 Receipt

Receipt ID: rcpt_07e08f5b984d1b97
Output Hash: e86eadb254248c643d16f26ed78a84c372bf0b50ff6ff079bebd28ea7b3f59d7
Signature: ed25519:e6008089670d3dcaa888a4fecac12c3b5a262ee382ce392442689cb183fb11109be927f2790551c6c4be3eb7118dc6928b5accfe967d01ab0cfe3a09a4e8fb02
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/mast.is