SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
SendOut - Affordable email marketing for bloggers and influencers
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Mailblast - Email marketing on a budget using Amazon SES
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.
rasa.io - Get more from your email list.