Hi there! The website is 100% secure and uses a fully valid, verified SSL certificate (you can check global diagnostic tools like Google Safe Browsing or SSL Labs, which rate it at the absolute maximum).
If your browser or antivirus is throwing an 'unsafe' warning, it's a local false positive. This sometimes happens with ultra-strict security filters because the site hosts development tools for compiling software (like Capsule HTML2EXE/APK). You can safely bypass the warning or add the URL to your exceptions without any risk!