Main-thread time per script, from Long Animation Frames (Chromium only; frames over 50 ms). "On slow interactions" is the share of page views with an INP over 200 ms where the script ran: a script that's there for most slow interactions but few others is the first suspect.
Script
Party
Runs on
Time when it runs
Per page view
Longest
On slow interactions
Mostly
No long animation frames recorded for these filters. They're only measured in Chromium browsers.
Domains: what each one costs per page view
Main-thread time comes from Long Animation Frame script attribution (Chromium). Bytes are only visible for cross-origin resources that send Timing-Allow-Origin.
Domain
Party
Types
Main thread / view
Requests / view
Bytes / view
No diagnostics match these filters.
Broken pages getting traffic
Full page loads served with a 4xx or 5xx status, and where those visitors came from, so you can fix the link or add a redirect. Safari doesn't report the status, so counts are a lower bound.