Trace

Output type: trace
Extension: .trace.json

LicensePro

A performance trace for Chrome internal events and Javascript events. This format can be read by chrome://tracing and Perfetto.

Cross-origin iframes, GPU and network service processes do not appear in this trace.

You can request a trace alongside a render by using the --trace flag.

Example

Run locally

zshot -f zemu.trace.json.gz \
     https://zshot-cli.com/example_assets/zemu

{
  "url": "https://zshot-cli.com/example_assets/zemu",
  "output_type": "trace"
}

curl -X POST http://127.0.0.1:3000/ \
  -H "Content-Type: application/json" \
  -d '{"url":"https://zshot-cli.com/example_assets/zemu","output_type":"trace"}' \
  -o zemu.trace.json.gz