Google’s John Mueller said in a Google Webmaster Help thread that Google may decide to “skip URLs that repeat the same path element many times.” So if you have a dynamic site and you use rewriting for your URLs but you do it in a way that shows the same path element too many times for many of your URLs, you may run into issues with Google indexing your site.
The site in question is wandelingen.nl. When you go to the site, immediately the URL changes to something like this wandelingen.nl/_/_/1/_/_/_/_/_/_/_/_/_ and as you click, more and more of those _/_/_/_/_/_/ elements get added on. Here is a GIF of the URL as I clicked only four times through the site:
So if you are rewriting URLs, don’t do it in this fashion. John goes through a lot more with this webmaster to guide them in a way that makes this specific dynamic site more search engine friendly. It is a great technical SEO thread.
Forum discussion at Google Webmaster Help.
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Author: firstname.lastname@example.org (Barry Schwartz)