Market Share by Top Websites

1 51 DNS is leading in Top 1M Sites and The Entire Web.

2 In terms of market share, Zscaler is clearly lagging behind, losing to 51 DNS in all segments.

Websites Categories

1 51 DNS has better usage coverage in more websites categories. Including Adult, Computers Electronics & Technology, Games, Arts & Entertainment and 2 other categories.

2 Zscaler is leading in Business & Consumer Services, Vehicles, Finance and Science & Education.


1 51 DNS is leading in most countries, including China, Hong Kong, United States, Japan and 39 other countries.

2 Zscaler is leading in Sweden, Czech Republic and Finland.