: Does Bing execute Javascript when crawling and indexing web pages (like Google)? Some content on some web pages is only displayed with Javascript when a button is clicked (for example). We know

@Steve110

Just tested it and Bing found page with all text build purely by JavaScript. Google also finds it of course.

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@Debbie626

According to this we are still waiting to see what Bing will do, so I would assume (I know) not.

Here is an excerpt regarding Bing:


What Can We Expect?

Google’s disregard for JavaScript in the past has also been used by
many websites to their advantage. It will be important to understand
the repercussions of Google being able to index all of the content and
assets on your pages, as it will be able to see your pages as a user
can now.

This announcement creates more questions than it answers, especially
considering the versatility and expanding capabilities of JavaScript.
We don’t truly know what Google’s goals are for this update, but RKG
is formulating testing to better understand the ramifications.

A few scenarios to think about:

Is your site is hiding duplicate content behind JavaScript, perhaps by
a review aggregator, will Googlebot now crawl all of that duplicate
content?

Will all JavaScript links in tags or JavaScript jump menus from
forms suddenly count as links?

How will faceted navigation within JavaScript be interpreted?

Will the execution of JavaScript by Googlebot be in small, incremental
waves or will this new capability be a fire-hose that is simply
turned on?

How will Bing respond?

Do the crawlers that you use internally for your own site analysis
have the ability to execute JavaScript? Will they no longer be able
to mimic Googlebot?

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