theory.com

Observed Jul 19, 2026, 04:20 UTC (18h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Also usesFacebook/MetaGoogle Search ConsoleAtlassian

8 subdomains · tranco_100k

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

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

theory.com

A / AAAA

96.45.83.15096.45.83.196.45.82.15596.45.82.42

Cloudflareserves the site

ns1.dnsmadeeasy.comns0.dnsmadeeasy.comns4.dnsmadeeasy.comns2.dnsmadeeasy.com+1 more

dnsmadeeasy.comanswers its DNS

theory-com.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

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

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time147 ms

DNS resolutionNOERROR

Redirect chain

https://www.theory.com

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

DNS Records

A 4

96.45.83.150
96.45.83.1
96.45.82.155
96.45.82.42

MX 1

5theory-com.mail.protection.outlook.com

TXT 14

sfcc_verification_aado=1bbb0491a4be902271c01387bbc964220574d28994ac3cd7c150a73989183b24
zscaler-verification-70805-1372026-xhg532j2s
facebook-domain-verification=22umle1tf4z35l22ot442u9jkw0w5r
google-site verification=vKHE6qn0qWMfWEDm33vL9d1BxnuuktcoAWJtFwPtMJs
MS=ms62625959
hgNjckvrUxFmbKF+tpfDtN1X2FovQCJQcYmV8lPofYNQ3pkV6osFuF9L5Gpthb+ltWClgGUyY+ZD5IwR+kisyg==
google-site-verification=alNhedMF8_AqGOLHzqDUqwMAoWh008dx5mcNgrn6Rc4
google-site-verification=qk5T2AtYiOfgDECD8hrwgYpHJNAYaVrRuY2wdP7cpfY
atlassian-domain-verification=DWDHXMar9/0VPemzDGa693escrPzjw0dO16bdfX5MMee6HsZ2pi3gu3qVBgl9z32
apple-domain-verification=XcAY1V8vdF3eN6p7

NS 5

ns1.dnsmadeeasy.com
ns0.dnsmadeeasy.com
ns4.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns3.dnsmadeeasy.com

SOA 1

ns10.digicertdns.com dns.digicertdns.com

TLS Certificates (0)

None.

Subdomains (8)

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

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

Ed25519 Receipt

Receipt ID: aeaf08cb-ea99-4ab0-bd23-ecbcc22ca649
Output Hash: c4e9d31b2e9f35798f852469100a77de23725b627d9d9ba7c4141dbde220b32e
Signature: ed25519:87c2ef6328075abc2e906394ee8b1366ccd88e96cafcc79889683db18b6bc47603b02aa41b758fd15fc66a90657a8de8e06b4b0418b17f1f9ac7a95b000ab20f
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

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