ZoneAlarm Basic Firewall is a basic and great firewall that can easily work for internet users and it can easily stop the cyber attacks. I have used this and found it very useful and gives the facility to protect you from both inbound and outbound attacks.
COMODO Internet Security - Download Free Internet Security Software for Complete protection against viruses and attacks of your computers. Know what's new in Comodo Internet Security.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Avira Internet Security - Avira Internet Security Suite is a one-size-fits-all security solution for your online life.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
AVG Internet Security - Stay safe online. AVG Internet Security gives you advanced protection against viruses, ransomware and other threats – for all your devices. Try it for free!
Better Uptime - We call you when your website goes down