Security

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

Cloudflare Bot Management

1.6M sitesSaaS

Guide

Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots.

reCAPTCHA

1.4M sitesSaaSFreemium · Pay as you go · Quote

reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.

Really Simple SSL & Security

289.5K sites

Really Simple SSL & Security is an easy to install and performant security solution for WordPress.

Cloudflare Turnstile

145.3K sitesSaaSFreemium · Quote

Guide

Turnstile is Cloudflare's smart CAPTCHA alternative.

DDoS-Guard

52.9K sitesFreemium · $ · Subscription

DDoS-Guard is a Russian Internet infrastructure company which provides DDoS protection, content delivery network services, and web hosting services.

hCaptcha

48.2K sitesSaaSFreemium · Quote

hCaptcha is an anti-bot solution that protects user privacy and rewards websites.

Imperva

24.2K sites

Imperva is a cyber security software and services company for networking, data, and application security.

Sucuri

19.8K sites

Sucuri is a cybersecurity company that provides website security solutions and services.

Confiant

18.2K sites$$$ · Subscription

Confiant is a cybersecurity company specialising in ad security and ad quality assurance for digital publishers, programmatic platforms, and advertisers.

Sift

14.9K sitesSaaS$$ · Subscription

Sift is a CA-based fraud prevention company.

Akamai Bot Manager

14.4K sitesSaaSQuote

Akamai Bot Manager detect bots using device fingerprinting bot signatures.

ClickCease

13.7K sitesSaaSPay as you go · Subscription

ClickCease is an ad fraud and click-fraud detection and protection service software.

Forter

11K sitesSaaSQuote

Forter is a SaaS company that provides fraud prevention technology for online retailers and marketplaces.

Detectify

9.5K sites

Detectify is an automated scanner that checks your web application for vulnerabilities.

DataDome

9.3K sites$$$ · Subscription

DataDome is a cybersecurity platform that specialises in bot protection and mitigation, offering advanced solutions to safeguard websites and mobile applications against malicious bot traffic, credential stuffing, scraping, and other automated threats.

PerimeterX

5.5K sitesSaaSPay as you go · Subscription · Quote

PerimeterX is a provider of scalable, behavior-based threat protection technology for the web, cloud, and mobile.

Friendly Captcha

3.1K sitesSaaS$ · Freemium · Subscription · Quote

Friendly Captcha is a proof-of-work based solution in which the user’s device does all the work.

Used byPlausible Analytics

Wordfence Login Security

2.4K sitesFreemium · $ · Subscription

Wordfence Login Security contains a subset of the functionality found in the full Wordfence plugin: Two-factor Authentication, XML-RPC Protection and Login Page CAPTCHA.

Signifyd

2.4K sitesSaaS$$$ · Subscription

Signifyd is a provider of an enterprise-grade fraud technology solution for ecommerce stores.

Riskified

1.8K sitesSaaSQuote

Riskified is a privately held company that provides SaaS fraud and chargeback prevention technology.

TruValidate

1.7K sitesSaaSQuote

TransUnion TruValidate (previously ReputationShield/IDVision from iovation) is an online risk and fraud detection platform.

Konduto

1.7K sitesSaaSQuote

Konduto is a fraud detection service for ecommerce.

Variti

1.6K sitesQuote

Variti is a network security solutions firm that blocks bad bots, protects users from various automated abuse, attacks and fraud techniques.

Keybase

1.3K sitesSaaSOpen sourceFreemium

Keybase is for keeping everyone's chats and files safe, from families to communities to companies. MacOS, Windows, Linux, iPhone, and Android.

Very Good Security

1.3K sitesSaaSPay as you go · Subscription

Very Good Security (VGS) is a data security and compliance platform that enables developers to securely handle sensitive data by encrypting, tokenising, and transmitting it through an intermediary service.

Bugcrowd

1.1K sites

Bugcrowd is a crowdsourced cybersecurity platform.

GeeTest

995 sitesSaaSQuote

GeeTest is a CAPTCHA and bot management provider, protects websites, mobile apps, and APIs from automated bot-driven attacks, like ATO, credential stuffing, web scalping, etc.

Yandex SmartCaptcha

755 sitesSaaSFreemium · Pay as you go

Yandex SmartCaptcha is a service for verifying queries to identify user requests and block bots.

Alibaba Cloud Verification Code

710 sites

Alibaba Cloud Verification Code is a security feature provided by Alibaba Cloud to help protect user accounts from unauthorised access.

ThreatMetrix

474 sitesSaaSQuote

LexisNexis ThreatMetrix is an enterprise solution for online risk and fraud protection ('digital identity intelligence and digital authentication').

Slider Captcha

473 sitesOpen source

Slider Captcha is a free service that helps protect websites from spam and abuse.

Fortinet FortiGate

388 sitesQuote

Fortinet FortiGate is a family of network security appliances that provide firewall, VPN, intrusion prevention, antivirus, web filtering, and other security features to protect and secure networks and data.

SiteGuard WP Plugin

290 sites

SiteGurad WP Plugin is the plugin specialised for the protection against the attack to the management page and login.

MTCaptcha

289 sitesSaaSFreemium · $ · Subscription

MTCaptcha is a captcha service that is GDPR and WCAG compliant, providing the confidence of privacy and accessibility.

Basic is an authetication method used by some web servers.

iThemes Security

277 sitesFreemium · $ · Subscription

iThemes Security(formerly known as Better WP Security) plugin enhances the security and protection of your WordPress website.

Blue Triangle

273 sitesSaaSQuote · $$$ · Subscription

Blue Triangle is a connected view of marketing, web performance, and third-party tag analytics while constantly monitoring website code for security vulnerabilities.

Akamai Web Application Protector

249 sitesSaaSQuote

Akamai Web Application Protector is designed for companies looking for a more automated approach to web application firewall (WAF) and distributed denial-of-service (DDoS) security.

Kasada

234 sitesSaaSQuote

Kasada is a cybersecurity company that provides a platform to protect websites and web applications from bot attacks and malicious activities.

AntiBot.Cloud is a PHP script and cloud service to protect websites from bots and junk traffic.

Kount

158 sitesSaaSQuote

Kount is a suite of fraud detection and prevention solutions for ecommerce businesses.

Norton Shopping Guarantee

124 sitesSaaS$ · Subscription · Pay as you go

Norton Shopping Guarantee offering a third-party shopping guarantee to customers provides added protection and validation that you are safe to buy from.

Onfido

87 sitesSaaSPay as you go · Subscription · $$

Onfido is a technology company that helps businesses verify people's identities using a photo-based identity document, a selfie and artificial intelligence algorithms.

AWS WAF Captcha

52 sitesSaaSSubscription · Pay as you go

AWS WAF Captcha helps block unwanted bot traffic by requiring users to successfully complete challenges before their web request are allowed to reach AWS WAF protected resources.

FraudLabs Pro

50 sitesSaaSFreemium · $$ · Subscription

FraudLabs Pro is a fraud prevention service offered by the company FraudLabs Pro, which specialises in online fraud detection and risk management for businesses.

Wordfence

43 sitesFreemium · $ · Subscription

Wordfence is a security plugin for sites that use WordPress. Wordfence includes an endpoint firewall and malware scanner.