Bot Lockout vs KillBot

Bot Lockout is a security plugin that implements a lightweight cryptographic challenge system to distinguish between real browsers and automated bots. Unlike traditional CAPTCHA systems, it uses JavaScript-based cryptographic operations that are easy for humans but difficult for most bots to solve. Key Features Lightweight Protection: Uses minimal resources and doesn’t impact site performance Cryptographic Challenges: SHA-256 hashing with date and user agent binding Smart Whitelisting: Allow trusted bots (Google, Bing, etc.) and IP addresses Flexible Configuration: Exclude specific pages and customize block messages Comprehensive Logging: Track blocked attempts for analysis Custom Styling: Add custom CSS to match your site’s design Daily Token Expiration: Prevents long-term bypass attempts How It Works Initial Request: When a visitor accesses your site, the plugin checks for a valid challenge token JavaScript Challenge: If no token exists, a cryptographic challenge is presented Token Generation: The challenge combines the current date with the user agent string and creates a SHA-256 hash Secure Storage: The hash is base64 encoded, truncated, and stored as a secure cookie Validation: Subsequent requests are validated against the stored token Security Features Cryptographically Secure: Uses SHA-256 hashing algorithm Time-Bound: Tokens expire daily to prevent long-term bypass Browser-Specific: User agent binding prevents token sharing Secure Cookies: Implements proper cookie security settings Whitelist Support: Allow trusted services and IP addresses Multi-Site Support Bot Lockout supports WordPress Multi-Site installations with both network-wide and site-specific configurations: Network Activation: Apply settings to all sites in the network Site-Specific Activation: Independent settings for each site Mixed Configuration: Network-wide defaults with site-specific overrides Security Advisory Bot Lockout is one layer in a broader security strategy, not a silver bullet. While Bot Lockout is designed to deter automated bots and AI scrapers through cryptographic JavaScript challenges, no single solution can offer complete protection. Web scraping technologies continue to evolve, and determined actors may find ways to bypass front-end defenses. This plugin should be used as part of a multi-layered approach to website security. For best results, we recommend combining Bot Lockout with additional tools such as server-level firewalls, rate limiting, CAPTCHA systems, behavior-based threat detection, and CDN-level bot mitigation. Kognetiks makes no guarantee that this plugin will block all unwanted bot traffic. It is intended as a proactive, lightweight defense mechanism—not a comprehensive security system. Users are responsible for evaluating their own threat model and deploying appropriate complementary protections. Support For support, please visit the WordPress.org support forums or check the plugin documentation. Credits Developer: Kognetiks This plugin is licensed under the GPL v3 or later.

The KillBot plugin for WordPress uses the external KillBot service to protect websites from bots and automated traffic. What is this service, and what is it used for? KillBot is an anti-bot system that analyzes traffic, detects bots, and can either block them or present a CAPTCHA. The plugin interacts with the KillBot service to check users for signs of automated behavior and detect the use of proxies or VPNs. What data is sent and when? The plugin sends the following data to the KillBot server upon each new visit session: – The window.navigator object – The window.screen object – The window object (excluding string-based parameter values) Important: KillBot does not receive any personal user data, such as names, email addresses, or account identifiers. Links to Terms of Service and Privacy Policy KillBot Terms of Service: https://my.kill-bot.net/node/7 KillBot Privacy Policy: https://my.kill-bot.net/node/29