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9 Subject Line Tester Tools to Boost Email Opens

14/04/2018
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A successful campaign starts with a good headline that grabs the attention of your subscribers.

A good headline is personal, descriptive and gives an idea about your content.

We’ve picked 9 tools to help you write better and more eye-catching headlines and boost your email open rates.

These tools check spam triggers, get ideas for creating your subject line more emotive, generate SEO-friendly headlines for your blog post and get an overall grade on how clickable your emails are.

9 Subject Line Testing Tools:

1) Headline Analyzerby CoSchedule

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This tool is one of the most fully-featured headline analyzers. It gives you analysis of the overall headline structure and readability of your headline, increased traffic, SEO value and provides tips on structure, grammar, and word placement.

It also categorizes your headline type, looks at your word balance, and breaks down your title according to:

  • Common Words
  • Uncommon Words
  • Emotional Words
  • Power Words

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What it tests:
  • Overall Copy Effectiveness
  • Word Balance
  • Length Analysis
  • Keywords
  • Type
  • Emotion
Pricing

14-Day Free Trial & Subscription

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2) Touchstone

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Touchstone tool is the only one that allows you to create a virtual simulation of your email marketing database to test subject lines for open, click, and delivery rates.

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What it tests:
  • Subject Line Testing Functionality
  • Segment Testing
  • Full Reporting Dashboards
  • Email Reporting
  • Filter Options
  • Access to Touchstone’s Database
Pricing

7-Day Free Trial, Subscription

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3) ISnotSPAM

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IsNotSpam is an online spam checker tool, allow you to test email and newsletter content, and alert if it is likely to trigger spam filters.

Send your email to the email address displayed on their website and then, click on the View Your Report button.

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It analyzes your message, including the subject line, and suggests fixes for any spam-related issues that arise.

What it tests:
  • Spam Phrases
  • SPF Check
  • Sender-ID Check
  • DomainKeys Check
  • DKIM Check
  • SpamAssassin Check
Pricing

Free

4) Automizy

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Your email design and copy wouldn’t even matter if your subscribers don’t open your email. That’s a tough fact that every email marketer should be aware of.

When your subscribers don’t open your emails your time and energy go to waste.

Prevent all of that from happening by using Mizy the free email Subject Line Tester.

It is AI-powered tool grades your subject lines based on data from over 1 million campaigns.

Mizy is continuously analyzing thousands of email campaigns.

Unlike other Subject Line Testers, she doesn’t decide your subject line scores based on benchmarks, fake “best” practices or old case studies. She actually gives you feedback based on the actual result of real campaigns.

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Using Mizy helps you:
  • Increase the open rates of your email campaigns.
  • Get a higher click-through rate since more subscribers open your email
  • A higher click-through rate gets more subscribers to your web pages.
  • More subscribers on your pages increase the revenue from campaigns.
What it tests:
  • Open rate pattern
  • Overall Copy Effectiveness
  • Keywords
  • Spam Phrases
  • Length Analysis
  • Sentiment used

The above testing criteria constantly change due to the nature of AI and data processing to keep your subject line score and open rate as high as possible.

Pricing

Free

5) Sharethrough

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The Sharethrough headline tool analyzes your headline and gives it a score based on a multivariate linguistic algorithm made on the principles of Behavior Model theory and Sharethrough’s neuroscience and advertising research.

The algorithm enables your headlines to capture attention, increase engagement and deliver a stronger impression.

It analyzes and scores the headlines in 2 contents- Engagement and Impression.

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What it tests:
  • New Insights For Headlines
  • Headline Quality Score
Pricing

Free

6) Emotional Marketing Value Headline Analyzer 

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Advanced Marketing Institute’s Headline Analyzer is a unique tool, offers algorithms measuring the Emotional Marketing Value (EMV) of headlines.

This tool digs deep into your headline and uses proprietary research to analyze it in three types: Intellectual, Empathic and Spiritual.

1-emotional

It helps you craft your message to resonate with users on a deeper level.

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What it tests: 
  • Emotional Marketing Value (EMV) Words
Pricing

Free

7) Inbound Now’s Headline Generator

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If you hate coming up with headlines in the first place; just type in a few words related to your content topic, and it will come up with engaging, SEO-friendly headlines.

What it tests: 
  • SEO-friendly headlines
  • Topic Generator
Pricing

Free, Subscription 

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8) Headline Capitalization

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If you’re not sure which words to capitalize in your headline, use the Headline Capitalization tool for sure.

It is a free headline checker that correctly capitalizes titles for all your writing.

To use this tool, just select your capitalization style (Associated Press Style, APA Style, Chicago Manual of Style, or MLA Style), and then, type in your headline. It will automatically capitalize the apt words for you.

What it tests:
  • Headline Capitalization
Pricing

Free

9) Hookline Dynamic

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The Hookline Dynamic tool by Michelle Shaeffer analyzes the headline in 3 ways- Excitement, Emotion and Empowerment. These 3 components can effectively increase organic traffic from search engines.

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What it tests:
  • Blog Post Title
  • Email Subject Line
  • Sales Funnel Headline
  • Facebook Ad-line
Pricing

Free

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