otis.com

Observed Jul 18, 2026, 12:03 UTC (16h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Email byProofpoint

Secured byLet's Encrypt

Also usesDocuSignMiroFacebook/MetaGoogle Search ConsoleAtlassianHubSpot

3 subdomains · fortune_500

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

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

otis.com

A / AAAA

34.8.129.241

unattributedserves the site

pdns1.ultradns.netpdns2.ultradns.netpdns3.ultradns.orgpdns4.ultradns.org+2 more

ultradns.net + ultradns.org + moreanswers its DNS

mxa-005a8301.gslb.pphosted.commxb-005a8301.gslb.pphosted.com

Proofpointreceives its email

TLS

www.otis.com

Let's Encryptissued its certificate

DNS Records

A 1

34.8.129.241

MX 2

10mxa-005a8301.gslb.pphosted.com
10mxb-005a8301.gslb.pphosted.com

TXT 31

MS=ms30252495
MS=ms82433825
ms=20.10.2023
nintex.6737d69a1d82a43d19c72505
msfpkey=6j6wh22ot6alrfeuo8b17jmpu
d365mktkey=1lc0giqmkgn7j9rxgo2l4zh74
d365mktkey=3flcjjkbxa5oap4w3xseft6j1
d365mktkey=3vx38ga6pg7v3k69aaw2qcn14
d365mktkey=4yo8yk3b1sz31j2najja97c8n
d365mktkey=692cjhtpnfa7c4qmbmuwo0khl

NS 6

pdns1.ultradns.net
pdns2.ultradns.net
pdns3.ultradns.org
pdns4.ultradns.org
pdns5.ultradns.info
pdns6.ultradns.co.uk

SOA 1

pdns209.ultradns.com administrative\.contact.otis.com

SRV 2

access1.otis.com:5060 p10
nxpfs.ucfederationcloud.com:5269 p20

TLS Certificates (3)

Common Name	Issuer	Expires
`www.otis.com`	C=US, O=Let's Encrypt, CN=YR2	Tue, 08 Sep 2026 12:01:48 +0000
`YR2`	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 (3)

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 otis.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 2f923308-fc76-481c-b16c-457358112f70
Output Hash: 4b2fc99c19d6ebd526f6318077d43dad740940be74cdb33f0e213f90083c2f9e
Signature: ed25519:fe0c967fa459fdbcefc7fe14911c02f6a10f5853fd4cbe5a4026a845b2f8e03d54adaac84b946c3d6b3d049a42871dd3d78ddf0bd69d8f07e7c669b702a5f901
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/otis.com