Site24x7 offers both free and paid website monitoring services. With Site24x7 users can monitor the performance of a range of internet services including HTTPS, DNS and SSL, as well as those within a private network, from more than 50 locations throughout the world. Server monitoring will notify you of outages will tracking server performance, and with web application monitoring you'll have a view of the uptime and performance of web apps. Use Site24x7 to identify application servers and app components leading to errors, and enjoy other robust features like network monitoring, unified visibility into the structure of your cloud architecture and real user monitoring.
Site24x7 offers an industry-first Android app to track mobile apps, websites via Verizon, AT&T, Other 3G/4G wireless and WiFi Networks