UptimeRobot - Free Website Uptime Monitoring
SiteCheckerTool.com - Website Analytics & Tools
Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting
A1 Website Analyzer - Analyze websites and save data into XML, CSV etc. Extract data about internal linking and importance calculations, file sizes, download times, HTML validation errors etc. across entire websites.
UptimeRobot App - Web, SSL, ports & Cron-jobs monitoring
SiteAuditTool.com - Generate Website Audit Reports