JavaScript instructions execute directly. Should we use internal or external JavaScript? Internal JavaScript is more suitable when we just need to use it on a single web page.

That’s why it is important to not block Googlebot from accessing external files and JavaScript assets, and also likely why Google is moving away from its supporting Ajax for SEO guidelines.

Blocking External JavaScript and CSS The person asking the question has a valid reason to be concerned about how Google might react about blocking external resources. The question: “If you use ...

Researcher shows how Instagram and Facebook’s use of an in-app browser within both its iOS apps can track interactions with external websites.

When using external JavaScript files as part of the page, some SEOs and site owners use their robots.txt file to block Google from accessing that code, unaware of the consequence.