Web Application Firewall

Parent Category: Security Solutions

Web Application Firewall is an application firewall that filters, monitors, and blocks HTTP traffic to and from a web service.


We have discovered 1,333,566 live websites that use WAF.

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Web Application Firewall usage statistics

Total sites that use WAF1,333,566 websites
Percentage of website that use category1.65%
Number of technologies in WAF category27
Category leader Wordfence
Fastest Growing Technology DDOS Protection By Cloudflare
Most Popular in Country United States



Top Technologies

Top 6 technologies in WAF category (out of 27 total).
TechnologyWebsitesMarket ShareRecent changes
Wordfence386,662 28.99% -2,991
imunify360230,389 17.28% -7,535
F5 BigIP172,389 12.93% -3,218
Sucuri154,457 11.58% -336
DDOS Guard104,511 7.84% +2,357
Incapsula83,010 6.22% -1,081
See full technology list

Top technology switches

Number of websites that switched technologies within category in the past 3 months

FromToWebsite Count
Incapsula F5 BigIP218
Qrator Labs DDOS Guard35
Wordfence DDOS Protection By Cloudflare31
F5 BigIP Incapsula24
F5 BigIP FortiGuard22
imunify360 Wordfence20

Web Application Firewall usage distribution by website rank

The correlation between utilization of WAF technologies and the relative popularity of websites

Geographical Distribution

Category usage distribution by websites across the globe.



Websites utilizing Web Application Firewall

Top websites that use WAF
DomainCountryRankContacts
www.cloudflare.com United States27
www.afternic.com Netherlands52
networksolutions.com United States174
bluehost.com United States251
www.bluehost.com United States251
cdc.gov United States296
See full domain list