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Grade AR-169Technical

CWV tiebreaker

Core Web Vitals are used by Google's ranking systems; the good thresholds are LCP ≤ 2.5 s, INP ≤ 200 ms and CLS ≤ 0.1 at the 75th percentile of page loads. Google says it always seeks to show the most relevant content even when page experience is sub-par, so CWV matter most where many pages answer equally well (see perf.cwv-ranking-signal).

Sources

  1. 1
    Google Search Central · 2026Understanding page experience in Google Search resultsdevelopers.google.com
  2. 2
    web.dev · 2024Web Vitals (thresholds)web.dev

AGrade A: official documentation or a standard. A grade describes the provenance of the sources above; it is not a probability that a change will work. The effect basis says how the size of the effect is known: measured by a study, taken from an industry report, only documented without a size, or not quantified.

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