Linkbird - Linkbird is a content marketing platform with workflow software for teams.
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.
Broken Link Builder - Broken link building is the link building method that is a white-hat link building strategy which acquires links by finding broken links and replacing them.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Linkody - Save time and money by managing your SEO linkbuilding with Linkody.
Better Uptime - We call you when your website goes down