sparkpostmail1.com

Observed Jul 17, 2026, 14:19 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onAmazon

Email bySparkPost

Registered withMarkMonitor Inc.

Also usesGoogle Search Console

tranco_40k

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

INFRASTRUCTURE MAPwhat sparkpostmail1.com actually stands on - every host below is a signed observation

sparkpostmail1.com

A / AAAA

54.244.54.13354.244.54.13254.244.54.131

Amazonserves the site

ns-1309.awsdns-35.orgns-1905.awsdns-46.co.ukns-235.awsdns-29.comns-946.awsdns-54.net

awsdns-35.org + awsdns-46.co.uk + moreanswers its DNS

smtp.sparkpostmail.com

SparkPostreceives its email

DNS Records

A 3

54.244.54.133
54.244.54.132
54.244.54.131

MX 1

5smtp.sparkpostmail.com

TXT 4

google-site-verification=pK0FfTtjnJpuf0oCNZNfpPFI7pVt05X8F-BuMRv8dyU
v=spf1 exists:%{i}._spf.sparkpostmail.com ~all
yahoo-verification-key=QL5G1JcLGxN2fYXXHmrOijw8FRjemqly6LumqAA6d5U=
v=DMARC1; p=reject; rua=mailto:dmarc-reports@sparkpost.com

NS 4

ns-1309.awsdns-35.org
ns-1905.awsdns-46.co.uk
ns-235.awsdns-29.com
ns-946.awsdns-54.net

SOA 1

ns-235.awsdns-29.com awsdns-hostmaster.amazon.com

TLS Certificates (0)

None.

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 sparkpostmail1.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/sparkpostmail1.com">
  <img src="https://domaindrift.io/badge/sparkpostmail1.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for sparkpostmail1.com">
</a>

Ed25519 Receipt

Receipt ID: 34c41a54-14b6-4ac7-a368-404da3cb5021
Output Hash: ff344e4ee5b653636e14086efdeef5b3a61af3e89dd946108fb8be933cf5ce3b
Signature: ed25519:8eba0ea6b5287ca2712605c65d84db22452bf327dd75488627b2aec7860b5d59ea6ad0829f5fffe1d854d1aeda5406d1b8881babf2cb8529aac27e76d48cc403
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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