Check URLs if the are blacklisted for providing malware
Many different way to shoelace. Verschiedene Verfahren seine Schnürsenkel zu binden
HTTPS certificate chain check if weak sha-1 cipher is used
Download or convert youtube videos
Search Rapid7 database for vulnerabilities and exploits
Test your internet connection speed without the need of Java or Flash, yeah. Only pure HTML5 is needed
Test your client SSL/TLS settings and cipher specs