We switched to Nightwatch from Stat after some issues and realizing they support wide range of functionalities with have a more friendly interface. Happy so far!
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Netumo - Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.
AppZero - AppZero is a monitoring and migration tool that allows users to keep track of different applications and servers in both simple and complex IT environments.
SEO Tools Centre - SEO Tools Centre provides SEO checker services for websites.
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