Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.

StatusGator - Monitor all your hosted applications, vendors, and websites, and keep your team informed of outages. StatusGator is the world's premier status aggregator, status page, and website monitoring tool.

Website Checker Tech - WebsiteChecker.Tech is SaaS tool that detects SEO and availability issues of your website, making it easier for you to fix them.

WrapAPI - Build an API on top of any website

Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.