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Glossary entry

Tech detection

The process of identifying which technologies a company is using by scanning their site, JS, DNS records, headers, and careers-page mentions. The data foundation of every technographic signal: if you can't detect what's in the stack, you can't detect when it changes. BuiltWith and Wappalyzer are the major commercial sources; Mama runs its own detector to catch changes faster (3-day average lag vs. BuiltWith's 30-day). DNS/MX records are the most reliable layer; JS sniffing catches the marketing stack.

Category: ICP & Targeting Reading time: 2 min

01Definition

TLDR
The process of identifying which technologies a company is using by scanning their site, JS, DNS records, headers, and careers-page mentions. The data foundation of every technographic signal: if you can't detect what's in the stack, you can't detect when it changes. BuiltWith and Wappalyzer are the major commercial sources; Mama runs its own detector to catch changes faster (3-day average lag vs. BuiltWith's 30-day). DNS/MX records are the most reliable layer; JS sniffing catches the marketing stack.

02Why it matters

Speed of detection is competitive advantage — first vendor to spot a migration gets first crack at the budget.

03Example

Worked example
Mama's nightly crawl catches HubSpot replacing Pardot on Acme's site → outreach queued for the next morning.
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