Analyze a capture
Why is this page slow?
Drop a capture and the deterministic engine ranks your real bottlenecks — then the AI explains what to fix first.
Drop your HAR file here
or click to browse
Exported from Chrome DevTools → Network → Save all as HAR
First time? Export a HAR from your browser's DevTools
The AI only sees the findings — never your raw requests, cookies, or bodies.
How do I get a HAR of my own site?
Get a HAR of your own site in ~30 seconds
Chrome · Edge · Firefox · Safari- Open your page, then press F12 and pick the Network tab
- Reload the page (Cmd/Ctrl + R) so every request is recorded
- Right-click any request → “Save all as HAR with content”
- Drop the
.harfile into the box
A HAR can contain cookies and auth tokens, so only share ones from a throwaway session. Full per-browser guide →
Need two captures? Use Compare mode to diff a before/after.
Page behind a login? Capture it →