csgsystems.com

Observed Jul 21, 2026, 16:53 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 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

ns2.csgsystems.comns12.csgsystems.comns1.csgsystems.comns11.csgsystems.com

csgsystems.comanswers its DNS

mxa-00278403.gslb.pphosted.commxb-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

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

TXT 14

_kh1q6673gsw1y2gfvmlw43vctihsiex
_9bhegkwcnoia2wz1r8rdsjvddj2xtao
_nwu3l15e2jrnrjm49r5bcbhpg63vzs3
9jcbvz5fcmx8d18lnll715qwh4wp4y9q
_jedzaypmo98rl65s1579wcm5sub0yuo
_2buc575gfvelwonlkhy6fv9ilhhz6lm
_bsyt9zdtxfn0nm6pfz40obtrsij0944
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
Sh2utVTBt/Jub8t29C0iLqz3kT839EQhzsqJqOtwH8J0m2Eg7kUX5D9rrkR/VDKWUN1uw/g0mbJC7dMxYAikvQ==
_42ju9qj57dniw2ihs5inkjyl5yk5fms

NS 4

ns2.csgsystems.com
ns12.csgsystems.com
ns1.csgsystems.com
ns11.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: rcpt_d948a85d2180d816
Output Hash: 083742c5e2bd10f3a2a1cfacc2ffac215150c2cecbe927584576a1869b010aed
Signature: ed25519:eae79e156f3844d355109dc8b26797dd86c109bad3cf58555e24768270f34daff7b16e499564737e3a7a2a2601a63927ecff22cfbc35fb2cfd1e29ef24cbec02
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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