Yellow Lab Tools : Online test to help speeding up heavy web pages
mail-tester.com : Free online service that allows you to test your emails for Spam, Malformed Content and Mail Server Configuration problems
HTML_QuickForm2 : This PHP package provides methods to create, validate and render HTML forms.
Security Headers : I built securityheaders.io after deploying security headers like CSP and HSTS to my own site. I wanted a quick and easy way to check if other sites we...
Mockbin : Mockbin allows you to generate custom endpoints to test, mock, and track HTTP requests & responses between libraries, sockets and APIs.
Increase your form conversions by fixing common usability issues
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