回放

通过交互式场景回放重现页面加载，突出最重要的性能时刻，并直接跳转到每个洞察背后的 HAR 证据。

Saved HAR files

Switch between HAR files saved locally in this browser.

Upload HAR or JSON file

Drop your HAR file here

Uploads are saved locally in this browser.

Upload a HAR to watch the story unfold

Pick a capture from your history or upload a new one to generate an interactive replay of the page load.