GA4 Double Counting 2026: 15.2% Fire Two Page Views

    15.2% of top 1M homepages that send a GA4 page_view (30,072 of 197,489) fire it two or more times on one load, though most of those send the hits to two different GA4 properties.

    Core Web Vitals pass rate, homepages firing one vs two or more GA4 page_views
    One page_view47.2%
    Two or more37%

    Source: PageSpeed Matters. HTTP Archive top 1M crawl, Sept 2026, mobile, CrUX p75.

    Correlation only; it does not show that a second tag causes the gap.

    Source: GA4 Double Counting 2026: 15.2% Fire Two Page Views - PageSpeed Matters