tetratech.com

Observed 2026-07-12T19:58:00.009Z (22h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Also usesDocuSignDocker

3 subdomains · consulting

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat tetratech.com actually stands on - every host below is a signed observation

tetratech.com

A / AAAA

141.193.213.20141.193.213.21

Cloudflareserves the site

ns04.gcd-dns.comns03.gcd-dns.com

gcd-dns.comanswers its DNS

tetratech-com.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.tetratech.com/

HTTP status301

Servercloudflare

TLS protocolHTTP/3

TLS issuernot observed

Behind Cloudflareyes

Response time215 ms

DNS resolutionNOERROR

Redirect chain

https://www.tetratech.com/

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

DNS Records

A 2

141.193.213.20
141.193.213.21

MX 1

0tetratech-com.mail.protection.outlook.com

TXT 20

88cKaYP+jP3KG6apANDstQ4SbL35GIUhQvlO3R2aQF6qV4hpp/Cymd57H8nBSFuTIqMmoIGtxr8xWRXLaC8ALg==
apple-domain-verification=pbOt4VZbzjblMWkUr74xqzKsHw999lxQZm0ioMzN8Yk
00D61000000ZsMX=1TBUN00000005jO
docusign=ab7fd354-4aad-44bb-87ce-b18da9d5245c
m5d2oabnoks5ll9pt5vumi3o1
204e0ee4-8557-4856-af22-5979ac1b8a81
slpuoe8u9ikvr03dtv67osatfq
infoblox-domain-mastery=a6e5d225095f2ddc21db0030a84a2fb70783f141c3be357dd30a5f4397c6283834
onetrust-domain-verification=b12f424d6a814088938f1d1373e35aeb
docker-verification=77a0073d-8a00-4d0a-a159-fec3010526e5

NS 2

ns04.gcd-dns.com
ns03.gcd-dns.com

SOA 1

ns03.gcd-dns.com dns.jomax.net

TLS Certificates (0)

None.

Subdomains (3)

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

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

Ed25519 Receipt

Receipt ID: 6ddc649f-ccfc-4276-92a5-ed37c65a3b20
Output Hash: 61125b6aea7d4b5634e877a02512f8455f7f6d3910b229ede88dbfd93c3daf16
Signature: ed25519:daf678e55e706f4f1c76a64aa4afb3a2128577afe8fbf137675968d9f321598a51b704c5233659b67c791ac2718cb535856e9bdf8f3cfc2cb781826e9ee16801
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/tetratech.com