Top Reference Websites in United States

The top 10 most visited reference websites in United States by Ahrefs organic search traffic estimates. Updated monthly.

May 2025
Top Trending Websites

Rank

Website

Search traffic

1en.wikipedia.org1.1B32M
2quora.com87M5.2M
3merriam-webster.com36M1.6M
4britannica.com26M2.6M
51wikihow.com13M+1.1M
61timeanddate.com12M2.0M
71dictionary.com9.2M577K
81word.tips8.4M1.5M
9thesaurus.com6.0M306K
10wiktionary.org5.4M584K

Trending up

Rank

Website

Change

5wikihow.com1
7dictionary.com1
1en.wikipedia.org

Trending down

Rank

Website

Change

6timeanddate.com1
8word.tips1
1en.wikipedia.org
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