This page lists some websites that rank highly on Alexa or SimilarWeb but do not have a page about them on the English Wikipedia.
Thanks to Vipul Naik for help with finding most of these sites.
- Education.com, Wikipedia page deleted
- Shmoop Wikipedia page deleted
- IXL Learning now has a Wikipedia page, but it only began in May 2016. Alexa, SimilarWeb
- EasyBib, deleted, Alexa, SimilarWeb
- Algebra.com, SimilarWeb, Alexa, Quantcast
- ondemandkorea.com, Alexa, SimilarWeb
- The Kitchn, has a section in a related page
- Some individual Stack Exchanges sites, like serverfault.com, Quantcast
- HipHopEarly, Alexa, SimilarWeb
- stockx.com, SimilarWeb
- List of most popular websites on Wikipedia has a list. The red links and no-link sites are the ones without Wikipedia pages.