What you will see
The Core Web Vitals card surfaces a quota or rate-limit notice instead of LCP, FID, and CLS values.
What it means
Google PageSpeed Insights enforces a daily quota on every API key. The free quota is large enough for one site checked a few times a day, but it can be exhausted if:
- The same key is shared across many sites.
- An external script is hammering the same key.
- Your Google Cloud project has hit its overall quota.
Fix it in two minutes
- Open the Google Cloud Console — Credentials page.
- Create a new API key dedicated to this site.
- Paste it into Mission Control → Settings → PageSpeed API Key.
- From the dashboard, run a manual health check to refresh the card.
If it keeps happening
Restrict the new key to the PageSpeed Insights API only and to a single referrer URL, which prevents accidental reuse from other sites and bots.