CONTINUOUS INTERNET TELEMETRY24H DRIFT3,178 material changesacross 2,760 domains · -220 vs yesterdayDNS DRIFT23 domains changed DNS providertop destination digicertdns.com + digicertdns.net · -4 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination 365cool.com · -1 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,314 curated domains not answering-6,404 vs yesterdayERRORS10,958 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT3,178 material changesacross 2,760 domains · -220 vs yesterdayDNS DRIFT23 domains changed DNS providertop destination digicertdns.com + digicertdns.net · -4 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination 365cool.com · -1 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,314 curated domains not answering-6,404 vs yesterdayERRORS10,958 responded with an errorlast probe · 5xx / 404 / 429 / 403

tetra-tech.com

Observed 2026-07-12T20:06:38.087Z (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Responding, no home page
Runs onCloudflare
IPv6 · construction
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat tetra-tech.com actually stands on - every host below is a signed observation
tetra-tech.com
A / AAAA
13.223.25.8454.243.117.1972600:1f18:4ae:c606:78d4:4260:db4e:aeee2600:1f18:4ae:c605:dd5d:b838:5816:d7fb
Cloudflareserves the site
NS
nsg1.namebrightdns.comnsg2.namebrightdns.com
namebrightdns.comanswers its DNS

HTTPS probe

not_found Resolves, but nothing at the root (404) 404 Not Found - domain resolves but no content at root
HTTP status404
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time586 ms
DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

  • 13.223.25.84
  • 54.243.117.197

AAAA 2

  • 2600:1f18:4ae:c606:78d4:4260:db4e:aeee
  • 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb

TXT 2

  • afternic-verification-G9G3tM8T8EwEizzPzjGJWF
  • v=spf1 -all

NS 2

  • nsg1.namebrightdns.com
  • nsg2.namebrightdns.com

SOA 1

  • ns1.namebrightdns.com dns.namebright.com

TLS Certificates (0)

None.

Subdomains (96)

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

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

Ed25519 Receipt

Receipt ID
e8b06160-9760-48d7-a0a9-bd55b72ce1a7
Output Hash
db73c70e59268c3b1b3f98112b6156f06d1091c676384dde23f80a4b3972a590
Signature
ed25519:de4b71d05e19db32f408020f6e545ff1c88b74bfbd72d079af50523580d9630922cd2c82fe4e342a2ef577a833c4376719259c3fd4de6bfe33e50c9b3a386f01
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser