SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
TrackBug - A visual platform to share feedback, bugs, collaborate and manage ideas with your peers and clients.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
WebDesign.org - WebDesign.org offers free web design tutorials, articles, news, interviews, web design showcases, software reviews, website templates and free design stuff.
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.
Roast My Landing Page - Video landing page reviews that will increase your conversion