Let's Encrypt
Free, automated, and open certificate authority provided by ISRG. Learn about their nonprofit work and services.
letsencrypt.org · 90,733
Akismet
Akismet offers ultimate spam protection for websites, used by millions worldwide.
akismet.com · 50,917
HideMyAss
Protect your privacy and access blocked content with HMA VPN. Browse safely on PC, Mac, Android, iOS, Linux & routers.
hidemyass.com · 21,792
Have I Been Pwned
Check if your email has been compromised in a data breach with Have I Been Pwned. Search multiple data breaches to see if your email address or phone number has been compromised.
haveibeenpwned.com · 16,188
Ghostery
Take back control of your online privacy with Ghostery, the #1 privacy suite that allows you to block ads, stop trackers, and much more.
ghostery.com · 13,530
DomainTools
The global leader in Internet intelligence providing essential data for best-in-class security programs.
domaintools.com · 13,308
F-Secure
Award-winning antivirus, VPN, and identity protection in one app. Secure your digital moments with total protection and privacy.
f-secure.com · 8,625
Wordfence
Leading WordPress security plugin offering enterprise-class protection against hacks and malware.
wordfence.com · 7,747
AdGuard
The world’s most advanced ad blocker providing the best ad-free experience. Protect your computer from malware and online tracking with AdGuard.
adguard.com · 5,676
Surfshark
Surfshark VPN – secure your data with unlimited devices, 24/7 support, 3200+ servers in 100 countries, and more.
surfshark.com · 5,554
AVG
Protect your devices with free antivirus, VPN, and TuneUp software. Stay safe online with expert security solutions.
grisoft.com · 3,624
Abine
Leading online privacy company offering tools to remove personal information from data brokers and protect consumer privacy.
abine.com · 1,548
PortSwigger
Leading provider of web application security tools and testing solutions
portswigger.net · 1,436
Anonym.es
Anonym.es allows you to anonymize your links with anonym.to, providing a way to link to other sites anonymously.
anonym.es · 533
BestVPN
Your ultimate guide to VPN services with honest reviews, guides, and FAQs.
bestvpn.org · 250
ActiveFence
Empowering Trust & Safety and online security professionals with solutions for user and AI-generated content
activefence.com · 236
AdsPower Antidetect Browser
An antidetect browser that protects your privacy by changing browser fingerprints in separated environments.
adspower.com · 202
Antartica Captcha
Website offering captcha services to protect websites from bots
antartica.com.pt · 143
AFERIST.NET
Helping people avoid being scammed. The project's mission is to protect honest people from scammers on the internet!
aferist.net · 104
