I’ve finally had an opportunity to write up the results of our second SEO experiment for MDN content, the “duplicate pages” experiment. Duplicate pages are those which are similar enough that search engines tend not to successfully differentiate among them, which can cause incorrect search results, poor ranking of individual pages, or splitting up of “Google juice” among the similar pages.
If you’d like to know more about the experiment and what was learned, please read my blog post Results of the MDN “Duplicate Pages” SEO experiment.
If you have questions or comments about the experiment or its results, feel free to ask here!
Senior Technical Writer
MDN Web Docs