What exactly has Google’s Gary Illyes said?
For example, Google’s Gary Illyes said in July that Google “won’t see the content behind tabs if the content under the tab is dynamically generated.” Similar things have been said by Google’s John Mueller before.
How to check if you Google can index your web pages
If Google cannot index your web pages correctly, the rankings of your web pages won’t be as good as they could be.
For that reason, it is important to check your web pages regularly to make sure that a) Google and other search engines can index them and that they b) have everything that search engine robots require from a web page.
The website audit tool in our Internet marketing tool SEOprofiler automatically checks your web pages for things that can cause problems with Google. The Top 10 Optimizer tool in SEOprofiler checks if your web pages contain everything that is needed for high rankings.
If you haven’t done it yet, try SEOprofiler now. SEOprofiler offers many powerful tools that help you to get better rankings on Google and other search engines.