Record a scrolling page as video

To show a long page, record the tab and scroll at a steady pace while you narrate. The file becomes a guided tour instead of a tall still image.

Steps

1. Open the page in its own tab.
2. Start a tab recording.
3. Scroll slowly; pause on headings you want viewers to read.
4. Stop when you reach the end of the section.
5. Trim the start and download.

For a single error dialog, a screenshot may still be enough — see screen record vs screenshot.