Everything under Tools → Pagespeed Insights → Settings. Changes are saved with the Save settings bar at the bottom of the screen. Settings cannot be changed while a scan is running.
Google PageSpeed API
| Setting | What it does |
|---|---|
| API key | Your Google API key. A new key has to pass Check key before you can save. See Get a Google API key. |
| Report type | Desktop, Mobile or Both. Both runs two checks per page, so it takes twice as long and uses twice as many requests. |
| Report language | The language of the audit titles and descriptions from Google. Recheck your pages after changing it. |
| Page screenshots | Keeps the screenshot and loading filmstrip of each page. Uses about 50 to 150 KB per report. Turn it off on very large sites. |
What to check
Choose which parts of your site are scanned: Pages, Posts, Category archives, Custom URLs, and any public custom post types. The number next to each shows how many URLs it adds.
Schedule
| Setting | What it does |
|---|---|
| Recheck on a schedule | Scans the site automatically. New pages and posts are found on each run. |
| Report expiration | How old a report has to be before it is checked again: 1 day, 7 days, 15 days or 30 days. With the schedule on, this is also how often it runs. |
Pages with a fresh report are skipped during a normal scan. To check everything again right away, tick Recheck all in the header before you click Start scan.
Advanced
The defaults work on most sites. Only change these if your scans stop before they finish.
| Setting | Use it when |
|---|---|
| Maximum execution time | Scans stop halfway and the plugin says the last scan did not finish. Raise it if your host allows longer requests. |
| Maximum script run time | Your host kills long requests no matter what. The scan then restarts itself after this time. Start low, around 30 seconds, and raise it step by step. |
| Delay between pages | Your server struggles while it is being tested. A short pause between pages helps. |
| Progress updates | How often the progress bar refreshes. Use Slow or Off on busy servers. |
| Log API errors | Keeps the errors Google returns for 7 days, so you can see them under View logs. |
Delete data
Delete reports removes all reports and score history but keeps your custom URLs and snapshots. Delete everything also removes custom URLs, ignored URLs, snapshots and logs. Your settings and API key are always kept. Both ask before they delete anything, and neither can be undone.