JavaScript rendering
In short
JavaScript rendering is the first of the two changes that stopped an agent in Ora's experiment. In the network crawl of 4 Nov 2026, 3.5 percent of home pages that returned 200 were flagged as script-only shells. Read on in Making pages readable. The neighbouring term is Initial HTML.
Definition
Building page content in the visitor's browser with scripts after the page loads. Readers that do not run scripts see an empty or partial page.
A dated example
- Read 4 Nov 2026
In the network crawl of 4 Nov 2026, 3.5 percent of home pages that returned 200 were flagged as script-only shells.
Where it matters
It is the first of the two changes that stopped an agent in Ora's experiment.
Related terms
- Initial HTMLThe page as your server first sends it, before any scripts run.
Sources
- Scorecard methodology: the crawl of 4 Nov 2026 (amireadyforagents.com/scorecards/methodology), read 4 Nov 2026.
- Sector scorecards dataset, edition 4 Nov 2026 (amireadyforagents.com/scorecards), read 4 Nov 2026.
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