Tool

Subject Line

SubjectLine.com has become the industry’s leading email marketing resource. The site includes major marketing related news items, best practices and a free subject line rating tool that allows marketers to test any subject line for possible deliverability and marketability issues.

The tool scans for over 800 unique rules that could impact a marketer’s email open rates and deliverability. Results provide marketing-related suggestions that are based on 6 billion+ email messages checked, improving marketers overall campaigns. These results enable marketers to acquire new customers utilizing the best permission email data available, improve email customer data hygiene and depth and provide strategic consulting services for both retention and acquisition email efforts.

Updated / report an issue

Other Tools

View All
Google Campaign URL Builder

Tool

Google Campaign URL Builder

This tool allows you to easily add campaign parameters to URLs so you can track Custom Campaigns in Google Analytics.

Facebook OG Sharing Debugger

Tool

Facebook OG Sharing Debugger

Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags.

Screaming Frog SEO Spider

Tool

Screaming Frog SEO Spider

The industry-leading website crawler for Windows, MacOS, and Ubuntu, trusted by thousands of SEOs and agencies worldwide for technical SEO site audits.

Really Good Emails

Tool

Really Good Emails

We all know that email happens as a team of designers, developers, copywriters, and managers. Brainstorm on inspiration or upload your emails for QA using our commenting and annotation features (in beta).

Bing Webmaster Tools

Tool

Bing Webmaster Tools

Leverage your dashboard for the sites you manage. Get a summary view of how well your site is performing and identify what needs emphasis

Grammarly App

Tool

Grammarly App

Compose bold, clear, mistake-free writing with Grammarly’s new AI-powered desktop app.

🎉 Over 14K Members! Join the discussion on Discord.