Article Date Mismatches: 19.7% Differ From Schema

    Among 2,578 top-5 ranking pages with both a visible <time> date and a schema or meta date, 19.7% show a date that matches none of the declared dates.

    Declared dateModified from 2026, by vertical
    Finance73.6%
    Apparel73.4%
    Software71.1%
    Real estate69.1%
    Insurance68.4%
    Education44.5%
    DIY41.3%
    Recipes37.7%
    Fitness37.6%
    Electronics36.4%

    Source: PageSpeed Matters. Top 5 Google results for 10,019 US keywords, Oct 2026.

    Top and bottom 5 verticals shown; the full list is in the comparison table.

    Source: Article Date Mismatches: 19.7% Differ From Schema - PageSpeed Matters