bouldercounty.gov

Observed Aug 12, 2026, 03:58 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of bouldercounty.gov was taken 4d ago

bouldercounty.gov is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting bouldercounty.gov 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 bouldercounty.gov Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Runs onAmazon
Email byMimecast
Secured byAmazon
Registered withget.gov
Also uses1PasswordMicrosoft 365AdobeAirtableAmazon BusinessAppleDocuSignFormstack
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bouldercounty.gov actually stands on - every host below is a signed observation
bouldercounty.gov
A / AAAA
35.85.192.11132.185.104.241100.23.18.180
Amazonserves the site
NS
ns-1384.awsdns-45.orgns-1951.awsdns-51.co.ukns-354.awsdns-44.comns-766.awsdns-31.net
awsdns-45.org + awsdns-51.co.uk + moreanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
TLS
bouldercounty.gov
Amazonissued its certificate

DNS Records

A 3

  • 35.85.192.111
  • 32.185.104.241
  • 100.23.18.180

MX 2

  • 10us-smtp-inbound-1.mimecast.com
  • 10us-smtp-inbound-2.mimecast.com

TXT 13

  • 0ed1fe018a3930606ce3084cc2a9f5da0161e3af4b
  • 1password-site-verification=IWRFDENXL5FRHAB4EXSDTGKSLY
  • MS=ms95932619
  • adobe-idp-site-verification=fb6d7040623c84616b469e60b21a535dc3742153128b4ca16949269e4723a418
  • airtable-verification=45d6a626027aa5f7168c47436ed302cc
  • amazon-business-verification=c43772df24bea3a1e264be608d195c6ed5f046ea87f13e71e85f15dc16a57787
  • apple-domain-verification=nUPdCo8oPJjCHQEQ
  • docusign=3e1c8964-51ea-41cf-92ba-b1b4b31424f9
  • formstack-domain-verification=b7cbdd47e3ac1bad7d5cb139f142701d
  • google-site-verification=11EyR9g992nAkup_Ve3HEeI2uNMkpFfsfqoIJjEoiUE

NS 4

  • ns-1384.awsdns-45.org
  • ns-1951.awsdns-51.co.uk
  • ns-354.awsdns-44.com
  • ns-766.awsdns-31.net

SOA 1

  • ns-766.awsdns-31.net awsdns-hostmaster.amazon.com

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email; fo=1;

TLS Certificates (3)

Common NameIssuerExpires
bouldercounty.gov C=US, O=Amazon, CN=Amazon RSA 2048 M04 Mon, 08 Feb 2027 23:59:59 +0000
Amazon RSA 2048 M04 C=US, O=Amazon, CN=Amazon Root CA 1 Fri, 23 Aug 2030 22:26:35 +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.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_9960cfd967d11817
Output Hash
8ec82f7049bc4dc019898fba9b0629f04d7ba081868cbda78a1d8e661aabb4d7
Signature
ed25519:f87e934f68b426cb6670b653b978cbb0fc351805265acc9154a081bfc7f9a0e8f15aab6e95dcc54d34efd3dad37a3209617c259835530a4842c770eb275d550e
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT41,492 material changesacross 39,753 domains · 24h to ~3h ago · -67 vs yesterdayROTATION55 domains moved DNS from magpiedns.com to koaladns.com, 53 moved backa rotation loop, not a migration · 24hEMAIL DRIFT3 domains switched email providertop destination alltheemails.comNOW569 curated domains not reachable+74 vs yesterdaySITE ERRORS36,537 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,503 sites429 rate-limit / 403 bot-block, a posture signal