See how your brand's language stacks up in today's crowded inbox

Subject line language check

It’s never been a more challenging time for retailers to stand out in a crowded modern inbox and stay ahead of the email marketing curve.  

Many factors contribute to copywriting success. One important factor is linguistic diversity. By that we mean the use of different combinations of language properties.    

Using the same language repetitively decreases copywriting performance over time, meaning less engagement and less revenue for your brand. Try varying your language for optimum levels of success. 

With that in mind, we built a simple tool for retailers to calculate their language diversity coverage score based on email subject lines they are using, and to see how they measure up against industry competitors.  

Here are your results, !

View your language diversity coverage score and the graph to understand what your score means and why language diversity matters when it comes to higher marketing performance.  

Discover how to read the graph and learn from the results in the dropdown analysis sections below. 

Tip: if your retail competitors are using a greater variety of language in email subject lines than you are, your brand is at a distinct email marketing disadvantage. 

Phrasee helps brands to stay ahead of the email marketing curve by generating and optimizing diverse language variants to increase opens, clicks, and conversions. 

How does this tool work?

Step 1: Complete the form and enter a few examples of the email subject lines you’re currently using.
Step 2: Click ‘calculate my score’ to submit your entries. 

Et voila! You’ll receive your language diversity coverage score: a measure of the linguistic diversity included in your subject lines. 

A graphical analysis showing your language optimization opportunities will be revealed in a matter of seconds. 

Try it now! See how your subject line language stacks up so you can optimize your copy for more opens, clicks, and revenue faster than you can say “I want more email marketing revenue”! 

Subject lines: why language diversity matters from Phrasee on Vimeo.

Why language diversity matters

There are trillions of ways in which a subject line can be writtenFrom words and sentiments to syntactic structure and emojis, various linguistic elements affect subject line performance. How do you know which linguistic combinations work best to engage your audience?  

One thing that Phrasee has learned over the years is that using a variety of different language elements in your copywriting and continuous testing results in significant engagement uplift. 

Our awesome team of data scientists analyzed millions of email subject lines, tracked their performance over time, and discovered a formula for email marketing success: 

Linguistic diversity in email subject lines + effective multivariate testing = email open rate uplift (an average of 5% to 10%)


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