Market Share by Top Websites

1 51 DNS is leading in Top 100K Sites, 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 Business & Industry, News & Media, Internet & Telecom, Arts & Entertainment and 217 other categories.

2 Zscaler hasn't got a lead over 51 DNS in any websites category.


1 51 DNS is leading in most countries, including China, Taiwan, Japan, United States and 79 other countries.

2 Zscaler is leading in Sweden, Norway and Latvia.