CONTINUOUS INTERNET TELEMETRY24H DRIFT4,814 material changesacross 4,666 domains · last 24h · -4,020 vs yesterdayDNS DRIFT144 domains changed DNS providertop destination cloudflare.com · -133 vs yesterdayEMAIL DRIFT33 domains switched email providertop destination outlook.com · -21 vs yesterdayCERT DRIFT47 domains switched issuing CA24h · -26 vs yesterdayNOW489 curated domains not reachable-68 vs yesterdaySITE ERRORS34,115 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 144,635 sites429 rate-limit / 403 bot-block, a posture signal

arbitragecalc.com

Observed Jul 28, 2026, 07:13 UTC (10h 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.

Up right now
Email byAmazon SES
Secured byAmazon
majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat arbitragecalc.com actually stands on - every host below is a signed observation
arbitragecalc.com
A / AAAA
3.171.61.103.171.61.133.171.61.1153.171.61.100
unattributedserves the site
NS
ns-1011.awsdns-62.netns-1205.awsdns-22.orgns-1592.awsdns-07.co.ukns-439.awsdns-54.com
awsdns-62.net + awsdns-22.org + moreanswers its DNS
TLS
arbitragecalc.com
Amazonissued its certificate

DNS Records

A 4

  • 3.171.61.10
  • 3.171.61.13
  • 3.171.61.115
  • 3.171.61.100

TXT 2

  • ahrefs-site-verification_27b1094baf6716fbd6e9009df0682664308d78efdde02ecc848bde85117ff819
  • v=spf1 include:amazonses.com ~all

NS 4

  • ns-1011.awsdns-62.net
  • ns-1205.awsdns-22.org
  • ns-1592.awsdns-07.co.uk
  • ns-439.awsdns-54.com

SOA 1

  • ns-1205.awsdns-22.org awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common NameIssuerExpires
arbitragecalc.com C=US, O=Amazon, CN=Amazon RSA 2048 M01 Fri, 08 Jan 2027 23:59:59 +0000
Amazon RSA 2048 M01 C=US, O=Amazon, CN=Amazon Root CA 1 Fri, 23 Aug 2030 22:21:28 +0000
Amazon Root CA 1 C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2 Thu, 31 Dec 2037 01:00:00 +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 arbitragecalc.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_0b8650360568d610
Output Hash
595ca949de93023094d06728e9ac43ccab6c7d62ae61d64205831ab029b44d39
Signature
ed25519:1d02979b6d1adfe7497f27241a157a0e112a41876c9c0ebe33f10449f9f13781fff5e2c36845b9ddaf615991c2c058e0338e244582da794318f018b3ec059907
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser