Avoid Plugins
Avoid outdated web plugins like Flash, Java, or Silverlight, which search engines cannot index and are unsupported on mobile.
In short
Outdated plugins (Flash, Java applets, Silverlight) should not be used as search engines cannot index their content and most mobile browsers block them. This check is fully automated — the scanner returns a definitive pass or fail.
How to fix it
Replace plugin-based content (Flash, Java, Silverlight) with modern web standards like HTML5, CSS3, SVG, or JavaScript.
Standards this maps to
- SEO: Avoid plugins
Frameworks that require this
Severity
warning — an important issue to address.
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