Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
Smaller - Make your websites load faster
BotTalk - Create Alexa skills and Google Assistant actions with Markup
Website Grader - Grade your website's strengths and weaknesses in seconds.
OK Google - Explore over 150 Google Now voice commands in one place
Checkbot - Checkbot will boost the SEO, speed and security of your site by checking you're following 50+ web best practices. Browser extension with free and paid plans.