Core Web Vitals metrics in Google Search Console exhibited a notable decrease in good and URLs needing improvement around July 11, while poor URLs remained consistent. Reports indicated that this trend affected both mobile and desktop platforms. John Mueller commented that changes are normal and not a bug, while Barry Pollard acknowledged a temporary dip in metrics, particularly on mobile. Ongoing investigations aim to identify issues and implement fixes in the following month to address these metrics changes.
We’ve noticed another dip on the metrics this month, particularly on mobile. We are actively investigating this and have a potential reason and fix rolling out to reverse this temporary dip.
The unusual behavior is that the good and those that need improvements decline, but the poor ones do not improve -looks like a glitch for sure.
These reports are based on samples of what we know for your site, and sometimes the overall sample size for a site changes.
The dip seems to be on desktop, not just mobile, for most sites - from what I can see.
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