Tabbed Content Kills Ranking, Here Is Why ?

[Brainpulsetech]

Although popular and very much in use, tabbed content could hurt your SEO efforts. Following are some insights you should look at to understand why they are a threat to your page rankings : https://www.brainpulse.com/articles/seo-sem/tabbed-content-harms-search-rankings.php

[riyajindal]

To put content behind the tabs, developers use codes written in javascript. Crawlers find it difficult to read and understand this code, and most often leave the tabbed section unattended. Despite an amazing content, the web page fails to hit the nodes just because content was placed behind the tabs that Google crawlers couldn't read.

[Arpita]

It's difficult to know exactly how detrimental this is. Github does exactly what you describe on pull requests - changing the tab changes the URL but near identical HTML is returned on each of the URLs. However, it almost certainly doesn't matter for them, they don't need both those 'tabs' to rank separately in search results.