Javascript, sometimes simply called Java, is a programming language used specifically to create and support dynamic, high-quality web content. It’s usually used in order to make websites more interactive and engaging, which can lead to a higher conversion rate, more time on page, and an increase in other engagement metrics.
While using Java is regarded as neutral for SEO (neither promoting or demoting SEO efforts), that is only the case if the Java is coded correctly by the webmaster. Poor-quality Java code is essentially more difficult for Google’s crawler bots to read and understand, which can lead them to incorrectly categorise and index webpages, or to simply skip over them altogether.
As such, it’s recommended that your use of Javascript is deployed by an expert who is familiar with the correct use of the programming language, placing the correct elements and attributes in the correct places and ensuring no meta data is left out of the code. Tightening up any Java on your website can directly improve your webpages’ technical SEO, helping Google crawl more of your pages at a faster rate.