CONTINUOUS INTERNET TELEMETRY24H DRIFT130 material changesacross 86 domains · -528 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination xn----8sbafg9clhjcp.bg · +1 vs yesterdayCERT DRIFT1 domains switched issuing CA24h · -1 vs yesterdayNOW4,267 curated domains not answering+1,438 vs yesterdayERRORS27,679 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED82,136 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT130 material changesacross 86 domains · -528 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination xn----8sbafg9clhjcp.bg · +1 vs yesterdayCERT DRIFT1 domains switched issuing CA24h · -1 vs yesterdayNOW4,267 curated domains not answering+1,438 vs yesterdayERRORS27,679 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED82,136 throttled or blocked our scanner429 rate-limit / 403 bot-block

simpli.fi

Observed Jul 18, 2026, 12:43 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesDocuSignDockerMiroSlackGoogle Search ConsoleHubSpotAtlassian
tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat simpli.fi actually stands on - every host below is a signed observation
simpli.fi
A / AAAA
141.193.213.30
Cloudflareserves the site
NS
dns1.simpli.fidns2.simpli.fidns3.simpli.fidns4.simpli.fi+2 more
simpli.fianswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
simpli.fi
Let's Encryptissued its certificate

DNS Records

A 1

  • 141.193.213.30

MX 5

  • 1aspmx.l.google.com
  • 5alt1.aspmx.l.google.com
  • 5alt2.aspmx.l.google.com
  • 10alt3.aspmx.l.google.com
  • 10alt4.aspmx.l.google.com

TXT 38

  • MS=ms87473197
  • 00DA0000000I8Lu=1TBVb000000001d
  • _u3dc6kh0p068wqy188pu0zcbf93zctc
  • apple-domain-verification=awZHO3ZstgGUNVwi
  • docusign=16e5d26b-1579-4b46-a8b3-655102a5bc1e
  • jamf-site-verification=d09WAmjW8Fv9dqTn5fPaTQ
  • bw=IOe97UwQ6ByqNZxnXGBLR9EDHJ4lXZTkDLYpnrOeVQ7b
  • openai-domain-verification=dv-gv3gD71Bcccqw82HyKvwI9zT
  • jetbrains-domain-verification=df8pazcz8r5x40gmdha5aj06p
  • docker-verification=bf881b68-5340-443e-86f5-7d3d5d64dfc8

NS 6

  • dns1.simpli.fi
  • dns2.simpli.fi
  • dns3.simpli.fi
  • dns4.simpli.fi
  • dns5.simpli.fi
  • dns6.simpli.fi

SOA 1

  • dns1.simpli.fi chief.simpli.fi

CAA 8

  • iodef "mailto:it@simpli.fi"
  • issue "amazon.com"
  • issue "digicert.com"
  • issue "letsencrypt.org"
  • issue "pki.goog"
  • issuewild "amazon.com"
  • issuewild "amazonaws.com"
  • issuewild "digicert.com"

TLS Certificates (4)

Common NameIssuerExpires
simpli.fi C=US, O=Let's Encrypt, CN=YE1 Thu, 17 Sep 2026 14:57:49 +0000
YE1 C=US, O=ISRG, CN=Root YE Sat, 02 Sep 2028 23:59:59 +0000
Root YE C=US, O=Internet Security Research Group, CN=ISRG Root X2 Thu, 02 Sep 2032 23:59:59 +0000
ISRG Root X2 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 simpli.fi. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
fbb9b79c-ad7f-4d75-8e6a-b9ee9a9001b3
Output Hash
896436fd434a5294d3a1c93d8488d45f249d6cdfa9f01dd574d9cfacef36a702
Signature
ed25519:41be1099912a8d42bb7d585495b94e2a4a1a63a862a8643eb5986ee382427d7e6fcb9d1d07a81a09d56083e056d676e527836fc48cd4e63259cb2654b4948302
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser