csgsystems.com

Observed Jul 17, 2026, 14:55 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byProofpoint

Secured byLet's Encrypt

tranco_100k

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

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

csgsystems.com

A / AAAA

64.239.109.1

Amazonserves the site

ns11.csgsystems.comns2.csgsystems.comns12.csgsystems.comns1.csgsystems.com

csgsystems.comanswers its DNS

mxb-00278403.gslb.pphosted.commxa-00278403.gslb.pphosted.com

Proofpointreceives its email

TLS

csgsystems.com

Let's Encryptissued its certificate

DNS Records

A 1

64.239.109.1

MX 2

10mxb-00278403.gslb.pphosted.com
10mxa-00278403.gslb.pphosted.com

TXT 14

_bsyt9zdtxfn0nm6pfz40obtrsij0944
Sh2utVTBt/Jub8t29C0iLqz3kT839EQhzsqJqOtwH8J0m2Eg7kUX5D9rrkR/VDKWUN1uw/g0mbJC7dMxYAikvQ==
_38l4wkyoc8iwud483ts65zfihc1cwih
_kh1q6673gsw1y2gfvmlw43vctihsiex
_x7hslufgpaifyxjph2frc175lroei8u
_jedzaypmo98rl65s1579wcm5sub0yuo
_z3wdsfz1dai1qj7q277pdwmmjixcrsi
_42ju9qj57dniw2ihs5inkjyl5yk5fms
9jcbvz5fcmx8d18lnll715qwh4wp4y9q
_2buc575gfvelwonlkhy6fv9ilhhz6lm

NS 4

ns11.csgsystems.com
ns2.csgsystems.com
ns12.csgsystems.com
ns1.csgsystems.com

SOA 1

ns1.csgsystems.com postmaster.csgsystems.com

SRV 1

sip.csgsystems.com:443 p0

TLS Certificates (3)

Common Name	Issuer	Expires
`csgsystems.com`	C=US, O=Let's Encrypt, CN=YR1	Mon, 12 Oct 2026 03:05:36 +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; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for csgsystems.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 6b7d63e6-9e2e-482c-bd3d-a0662fd31733
Output Hash: 87190d5024017439501674b748ca5605a3cd290860c7a901d786f69a6919135a
Signature: ed25519:d84c78539ef10d31d80fd815b7d97a6791095dbc5564f1512f9f659ae31e197a877fcb626c3c6ba8adf508c04191c6f11bd653c47adc4567cb429a9b09fd3202
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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