VercatusGrade AR-175Technical
Initial noindex directives and later rendering
Google may skip rendering and JavaScript execution when it finds a noindex robots meta tag in the initial HTML; using JavaScript to change or remove that tag may therefore not work. A page whose server response says noindex and whose rendered DOM says index can still be treated as noindex.
Sources
- 1Google Search Central · 2026JavaScript SEO basics: use robots meta tags carefullydevelopers.google.com
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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