Tech Stack Teardown
Reverse-engineers a company's sales and marketing tech stack from public signals.
npx goose-skills installDescription
Reverse-engineers a company's sales and marketing tech stack from public signals. Reads DNS records, inspects website source code, runs Apify technology profiling across 7,000+ tools, checks six DNS blacklists, and searches for public spam complaints. Works on single domains or batches and outputs a structured markdown report per company.
What this skill does
- 1Reads DNS records (MX, SPF, DKIM, DMARC, TXT, CNAME) to identify email providers, CRMs, and cold outbound tools.
- 2Inspects website HTML source for tracking pixels, script tags, and analytics tool signatures.
- 3Runs an Apify technology profiler for deep detection of 7,000+ tools using 8-tier inspection with confidence scores.
- 4Checks the domain against six DNS blacklists and searches for public spam complaints.
- 5Detects separate cold sending domains via redirect and SPF-only Google Workspace patterns.
- 6Produces a markdown report per company with confirmed tools, email auth assessment, and deliverability status.
When to use
- You want to know which CRM, cold email tool, and email provider a prospect or competitor is using.
- You're doing pre-outreach research to understand whether a prospect's domain is on a spam blacklist.
- You need to reverse-engineer a competitor's outbound infrastructure from public signals.
Tools used
Best for
Format
Frequently asked questions
What is Tech Stack Teardown?
Tech Stack Teardown is a Claude Code skill for sourcing by GooseWorks AI. Reverse-engineers a company's sales and marketing tech stack from public signals.
When should I use Tech Stack Teardown?
You want to know which CRM, cold email tool, and email provider a prospect or competitor is using. You're doing pre-outreach research to understand whether a prospect's domain is on a spam blacklist.
How do I install Tech Stack Teardown?
Run the install command (npx goose-skills install). Once the skill is in place, Claude Code loads it automatically whenever a task matches what it does.
Is Tech Stack Teardown free to use?
The author distributes it as MIT, but the repository has no LICENSE file. The source is public on GitHub (gooseworks-ai/goose-skills).