JavaScript is supported by all present day Net browsers. It’s an item-oriented language that is predicated on prototypes as an alternative to classes, and it’s deemed each lightweight and productive. Luckily, it's not an issue with WordPress.com as a consequence of its integration with Jetpack’s lightning-rapid CDN (Content Supply Network) https://rowanvgnty.blogkoo.com/wordpress-seo-optimization-an-overview-54078234