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mitchellkrogza /nginx-ultimate-bad-bot-blocker

Star4.3k

Nginx Block Bad Bots, Spam Referrer Blocker, Vulnerability Scanners, User-Agents, Malware, Adware, Ransomware, Malicious Sites, with anti-DDOS, Wordpress Theme Detector Blocking and Fail2Ban Jail for Repeat Offenders

nginx bots malware porn-filter gambling-filter spyware spam-prevention spambot-security spam-protection adware nginx-server spam-filtering scanners referrer-spam spam-referers spam-blocker referer-blocker vulnerability-scanners bot-blocker spam-referrer-blocker

UpdatedMar 26, 2025
Shell

mCaptcha /mCaptcha

Star1.8k

A no-nonsense CAPTCHA system with seamless UX | Backend component

rust privacy captcha self-hosted spam-protection ddos-mitigation proof-of-work self-host ddos-protection actix-web mcaptcha

UpdatedDec 30, 2024
Rust

1inch /shieldy

Star892

@shieldy_bot Telegram bot repository

bot telegram telegram-bot spam-protection

UpdatedNov 18, 2024
TypeScript

mitchellkrogza /apache-ultimate-bad-bot-blocker

Star864

Apache Block Bad Bots, (Referer) Spam Referrer Blocker, Vulnerability Scanners, Malware, Adware, Ransomware, Malicious Sites, Wordpress Theme Detectors and Fail2Ban Jail for Repeat Offenders

security bots apache porn-filter gambling-filter rogue spam-prevention spambot-security apache2 spam-protection badwords spam-filtering scanners bad-words spam-referers spam-blocker referer-blocker vulnerability-scanners bot-blocker spam-referrer-blocker

UpdatedMar 26, 2025
C

altcha-org /altcha

Star732

GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism and advanced anti-spam filter.

recaptcha captcha svelte wcag spam-prevention spam-protection antispam spam-filtering spam-detection ddos-mitigation proof-of-work captcha-alternative ddos-protection webcomponent hcaptcha spam-api

UpdatedMar 16, 2025
JavaScript

Merubokkusu /discord-spam-bots

Star482

Discord spam bots with multiple account support, account creator, auto-join, proxies, mass direct message and more.

testing bot spam discord discord-bot raid creator spam-protection trolling account spammer-detection discord-spam-bots account-creator

UpdatedMay 22, 2023
Python

FriendlyCaptcha /friendly-challenge

Sponsor

Star429

The widget and docs for the proof of work challenge used in Friendly Captcha. Protect your websites and online services from spam and abuse with Friendly Captcha, a privacy-first anti-bot solution.

library privacy captcha anti-spam spam-protection anti-bot proof-of-work gdpr-compliant

UpdatedMar 13, 2025
TypeScript

RuiSiang /PoW-Shield

Star326

Project dedicated to fight Layer 7 DDoS with proof of work, with an additional WAF and controller. Completed with full set of features and containerized for rapid and lightweight deployment.

nodejs security typescript ddos proxy-server waf cybersecurity spam-protection koa2 netsec spam-filtering network-security ddos-mitigation proof-of-work ddos-protection

UpdatedMar 24, 2025
TypeScript

spamscanner /spamscanner

Star310

Spam Scanner is a Node.js anti-spam, email filtering, and phishing prevention tool and service. Built for@ladjs,@forwardemail,@cabinjs,@breejs, and@lassjs.

javascript api set spam data node service scanner spamassassin anti-spam spam-prevention spam-protection rspamd spam-filtering spam-classifier spam-detection enron spam-classification spam-filter rspam

UpdatedNov 9, 2024
JavaScript

mosparo /mosparo

Star212

The modern spam protection. Protects your forms from spam by simply checking the content. Open source, Free to use, Accessible, and Self-Hosted.

spam-protection spam-detection mosparo

UpdatedMar 9, 2025
PHP

Michael-J-Scofield /discord-anti-spam

Star149

A simple discord anti spam node.js module to prevent spam on your discord server

discord moderation spam-protection discord-js

UpdatedSep 16, 2024
TypeScript

unkn0w /disposable-email-domain-list

Star149

List of disposable email domains. You can use it to block fake users on your newsletter.

spam email-validation newsletter spam-prevention spam-protection newsletters spam-filtering spam-detection spam-emails

UpdatedMar 24, 2025
PHP

carlostrub /sisyphus

Star87

Intelligent Junk Mail Handler

go spam mail spam-analyzer maildir spam-protection spam-filtering spam-detection golang-application junkmail junk

UpdatedOct 10, 2020
Go

ErikMcClure /sweetiebot

Star73

Anti-Spam bot for Discord

chatbot discord-bot raid anti-spam spam-prevention spam-protection antispam administration-bot

UpdatedDec 15, 2024
Go

Highfivery /zero-spam-for-wordpress

Star71

The WordPress Zero Spam plugin makes blocking spam a cinch without all the bloated options. Just install, activate, and say goodbye to spam.

wordpress wordpress-plugin spam spam-protection spam-detection spam-plugin

UpdatedMay 7, 2024
PHP

CleanTalk /php-antispam

Star60

A PHP API for antispam service cleantalk.org. Invisible protection from spam, no captches, no puzzles, no animals and no math.

php spam spam-protection php-api antispam

UpdatedFeb 20, 2025
PHP

matthutchinson /acts_as_textcaptcha

Star57

Text-based logic question captcha's for Rails 🚫🤖

ruby rails activerecord captcha spam-protection captcha-alternative captcha-generator

UpdatedJan 1, 2025
Ruby

prosopo /captcha

Star52

Protect your website from bots with Prosopo Procaptcha

security spam privacy recaptcha captcha spam-protection antispam spam-detection ddos-mitigation bot-detection proof-of-work captcha-alternative self-host ddos-protection polkadot invisible-captcha human-verification hcaptcha procaptcha frictionless-captcha

UpdatedMar 26, 2025
TypeScript

vmagnin /unsubscribe

Star50

Ce script permet de se désinscrire massivement de listes de diffusion indésirables de type publicitaire. This script allows the mass unsubscription from unwanted mailing lists.

spam-protection bash-script antispam junkmail