spx.com

Observed Jul 21, 2026, 19:19 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onFastly

Email byProofpoint

Secured byLet's Encrypt

Registered withMarkMonitor Inc.

Also usesZoomAtlassianFacebook/MetaGoogle Search ConsoleDocuSign

IPv6 · 1 subdomain · fortune_500

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

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

spx.com

A / AAAA

23.185.0.42620:12a:8001::42620:12a:8000::4

Fastlyserves the site

ns2.spx.comns3.spx.comns1.spx.com

spx.comanswers its DNS

mxa-0023ed01.gslb.pphosted.commxb-0023ed01.gslb.pphosted.com

Proofpointreceives its email

TLS

spx.com

Let's Encryptissued its certificate

DNS Records

A 1

23.185.0.4

AAAA 2

2620:12a:8001::4
2620:12a:8000::4

MX 2

10mxa-0023ed01.gslb.pphosted.com
10mxb-0023ed01.gslb.pphosted.com

TXT 33

ZOOM_verify_GP9_lmb9T-uRFVYBfQRibw
5jckq9ymvj2zym70g4c9zldrfnrmtng6
bkk1pvhhpdtrnl40s19p83gywlgmmw6d
atlassian-domain-verification=NxUQ4Q5KR8EStZk1Sa2ulTRVsNkpChTn28Sd1ZXxohUVJzehIrTHWa9F18TcHzuz
prxrryxknq899yjw25t9hx1fc70t93qf
6j452lj7pvzfr60mbcp9sbmfyryrbspd
atlassian-domain-verification=lCH6LYRKGLISV3aiQP51A0ILEkJ4saRjZ2bGkpAA7kgl1jzd4V0SimvVXnaT4zhq
facebook-domain-verification=osm043v0d1x0ath1bam7pr3csb3tid
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:mail.zendesk.com ~all
_rbalt6829zqfxdo5h7q3so4stevr3rz

NS 3

ns2.spx.com
ns3.spx.com
ns1.spx.com

SOA 1

ns1.spx.com dnsadmin.spx.com

TLS Certificates (3)

Common Name	Issuer	Expires
`spx.com`	C=US, O=Let's Encrypt, CN=YR1	Wed, 14 Oct 2026 14:42:39 +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 (1)

www.spx.com

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

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

Ed25519 Receipt

Receipt ID: rcpt_9b1d416d3c13d7b7
Output Hash: e990d0bee85929cf6bef9767b2f809a5fb3e41d9286a956734218140f3340774
Signature: ed25519:65d146ff7b621e27b71e00a13c03d2b64d5396ef70fa33958838876870748406df45a7bd77438e2e8e716d20d3fe9f5aec9e9aa8775160bac71c5b67082a8509
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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