Referrer Spam Remover - Remove spam bots from your Google Analytics data
QuickPhish - Phishing simulator for security awareness
Spam Check - A free JSON API to check your email messages' spam scores
CanIPhish - Blend social engineering with real-world phishing simulations to train your users how to detect the most advanced threats.All in a completely self-service, fast, free and modern SaaS platform.
PhishDeck - Build better phishing defenses
analyze.email - Test the spam-y-ness of your emails