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I’d be careful blaming GA4 for ranking drops, Google doesn’t use GA data as a direct ranking factor.
That said, GA scripts can hurt perceived performance if they block or fire too early. I’ve seen better stability just loading it after interaction or via GTM with stricter triggers.
If you’re seeing traffic swings that sharp, I’d also check crawl stats and server logs. Could be crawl budget or intermittent response issues getting misattributed to GA.
