Anti-spam
StopForumSpam
Antispam Bee
Sblam!
Akismet
CleanTalk
YouTube Spammer Purge
Mollom
GeeTest CAPTCHA
hCaptcha
reCAPTCHA
DataDome
MTcaptcha
AuthKong
PerimeterX Bot Defender
Solve Media
GeeTest protects websites, mobile apps and APIs from bad bot attacks with zero user friction. Its self-learning defense model based on Graph Convolutional Networks and massive volumes of behavioral biometric data collected since 2012 allows GeeTest to identify and mitigate bad bots across all GeeTest-protected sites. By analyzing over 200 parameters, GeeTest dynamic defense model provides its clients with a broader and deeper understanding of bot activities while its superior technology constantly learns and adjusts itself for any emerging threats. As the industry leader in the era of user experience, GeeTest CAPTCHA utilizes gamification to turn CAPTCHA into a fun and effortless experience. At present, GeeTest serves over 290,000 businesses worldwide, processing 1,000,000,000+ requests every day.
Anti-spam GeeTest CAPTCHAWith Geetest we: Stopped brute force attacks on online accounts in which hackers repeatedly try to log-in using hundreds of different passwords. Prevented hackers from signing up for multiple email accounts that they’ll then go on to use for nefarious purposes.
StopForumSpam - StopForumSpam - a database of known forum and blog spam, its sources and the email addresses reported
hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
Antispam Bee - Say Goodbye to comment spam on your WordPress blog or website.
reCAPTCHA - reCAPTCHA is a free security service that protects your websites from spam and abuse.
Sblam! - Open-source implementation of server-side spam filtering of blog comments and forum posts.
DataDome - DataDome provides innovative technology and human expertise to block bad bots.