Every agency has lived this one. Someone publishes a "small" Google Tag Manager change on a Friday. Conversion tracking dies quietly. Three weeks later the client asks why leads fell off a cliff, and nobody can say what changed.
TagStrike ends that. It watches every GTM container you manage and tells you the moment something changes:
- Slack alert within 5 minutes of any publish, showing exactly which tags, triggers and variables changed
- 10 automatic safety checks on every version, catching removed conversion tags, broken triggers and personal data leaking into tags
- A real browser loads your pages on a schedule and after every publish to prove tags still fire
- GA4 key event monitoring that spots drops within hours and points straight at the publish that caused them
- One-click rollback to the last version that worked
- Bring your own AI: plug Claude, Cursor or any MCP tool into your containers to investigate and draft fixes, with a human approving every change before it goes live
How it's built
I designed and built it end to end, from product spec to production:
- 50,000+ lines of TypeScript
- 799 automated tests
- 8 production modules on Cloudflare's edge
- A full marketing site and a weekly blog covering GTM and GA4 updates
Now in private beta, free while we test with agencies.