CONTINUOUS INTERNET TELEMETRY24H DRIFT33,450 material changesacross 32,285 domains · 24h to ~10h ago · -4,572 vs yesterdayROTATION57 domains moved DNS from kirklanddc.com to koaladns.com, 54 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT1 changed registrar24hNOW549 curated domains not reachablelast probe, steadySITE ERRORS33,824 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 117,662 sites429 rate-limit / 403 bot-block, a posture signal

addtocalendar.com

Observed Aug 2, 2026, 10:19 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of addtocalendar.com was taken 5d ago

addtocalendar.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting addtocalendar.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch addtocalendar.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Runs onAmazon
Email byGoogle Workspace
Secured byAmazon
Registered withAmazon Registrar, Inc.
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
EVIDENCE OF WILDCARD DNSobserved 2026-08-06 15:04 UTC

DomainDrift asked this domain for a TXT record at a name nobody registers, and got an answer back. A domain that answers a name that was never created is answering names in general, and that is wildcard DNS.

Wildcard DNS clusters around domain parking, dynamic DNS and catch-all hosting. It is also a real attack surface: if every invented hostname resolves, then a hostname an attacker invents resolves too, which is the ground state for subdomain takeover and for phishing hosted under a name that looks legitimate.

This is evidence of wildcard behaviour, not a proven fact. It rests on one control name: a domain could legitimately serve a TXT record at exactly that name for an unrelated reason, and a wildcard that answers address records but not TXT records would not be caught here at all. What this reading is and is not.

INFRASTRUCTURE MAPwhat addtocalendar.com actually stands on - every host below is a signed observation
addtocalendar.com
A / AAAA
52.5.167.10954.224.211.11734.225.40.17098.90.75.99+2 more
Amazonserves the site
NS
ns-1414.awsdns-48.orgns-1738.awsdns-25.co.ukns-30.awsdns-03.comns-881.awsdns-46.net
awsdns-48.org + awsdns-25.co.uk + moreanswers its DNS
MX
aspmx.l.google.com.addtocalendar.comalt1.aspmx.l.google.com.addtocalendar.comalt2.aspmx.l.google.com.addtocalendar.comaspmx2.googlemail.com.addtocalendar.com+1 more
Google Workspacereceives its email
TLS
addtocalendar.com
Amazonissued its certificate

DNS Records

A 6

  • 52.5.167.109
  • 54.224.211.117
  • 34.225.40.170
  • 98.90.75.99
  • 54.80.3.1
  • 34.194.165.144

MX 5

  • 10aspmx.l.google.com.addtocalendar.com
  • 20alt1.aspmx.l.google.com.addtocalendar.com
  • 30alt2.aspmx.l.google.com.addtocalendar.com
  • 40aspmx2.googlemail.com.addtocalendar.com
  • 50aspmx3.googlemail.com.addtocalendar.com

TXT 1

  • v=spf1 include:hotmail.com ~all

NS 4

  • ns-1414.awsdns-48.org
  • ns-1738.awsdns-25.co.uk
  • ns-30.awsdns-03.com
  • ns-881.awsdns-46.net

SOA 1

  • ns-30.awsdns-03.com awsdns-hostmaster.amazon.com

MCP_RECORDS 1

  • v=spf1 include:hotmail.com ~all

DMARC_RECORDS 1

  • v=spf1 include:hotmail.com ~all

BIMI_RECORDS 1

  • v=spf1 include:hotmail.com ~all

MTA_STS_RECORDS 1

  • v=spf1 include:hotmail.com ~all

TLS Certificates (3)

Common NameIssuerExpires
addtocalendar.com C=US, O=Amazon, CN=Amazon RSA 2048 M01 Thu, 22 Oct 2026 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; the only network request the check makes is for the published public keys.

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Ed25519 Receipt

Receipt ID
rcpt_c22f2fae5f31f1c2
Output Hash
74b43fecc86e2fa953e28c02f109b1d7ae48b1b6a12cf775c505b2836ea7a85b
Signature
ed25519:ef041faa57ac15c9e0dc61b4ad36cfd631cd7daec9cecf994940e4c3ff6ee7233ca2ff5e3afd5a697cac28a62041faa6bd6ad199b98f0b441afff977c20dd70c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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