The length of a subject line is determined by the device receivers are using as well as the performance of your preceding lines. Examine the open rates of previous emails and determine which subject lines performed best. Then, use similar language to create compelling subject lines that will make recipients want to read further.
Generally, subjects lines are not longer than 70 characters because many email clients truncate text after this amount of characters. Try to include relevant information in your subject line such as who the recipient is, what the message content is about, and any special offers or promotions you may have.
Other factors such as email volume and spam filters also influence the maximum length for subject lines. Email services that allow more than one line of text in each message body (such as Gmail) usually display the last line used so users can continue reading through their inboxes without being presented with a new message every time they click through an email thread!
Finally, keep in mind that if someone deletes a message without reading it first, you'll never know how to reach them. So, include helpful links or call-to-actions that will help them decide whether or not to open your message.
Shorter subject lines: As previously noted, research indicates that 41 characters is the ideal length for a subject line. Nonetheless, some marketing professionals advise going even shorter. According to Backlinko CEO Brian Dean, subject lines that are no more than 16 characters long have much greater open rates. He attributes this to the fact that users become used to receiving messages with specific content. When they see a message that doesn't meet their expectations, they tend to delete it without reading it.
Longer subject lines: While short subject lines are preferred, you should use longer ones when they make sense. For example, if you're sending an email about a new product release, using longer subject lines that include these key words will help readers identify your message quickly. Longer subject lines can also include more detail. For example, a sales email might have a subject line of "10 ways to increase conversion on our site" instead of just "Conversion Rate Optimization (CRO) Guide". This gives the recipient more information about what kind of content they can expect within the body of the email.
In conclusion, subject lines should be short and concise but not too short or people won't read them. Longer subject lines provide additional context which allow recipients to better decide whether to open them.
1. Shorter subject lines: As previously noted, research indicates that the best length for a subject line is roughly 41 characters. He attributes this to the fact that users expect short emails and want them to do one thing only - grab their attention.
Research from Perfect Audience shows that subject line length matters when it comes to email opens. They found that subjects under 40 characters get opened less often than those over this mark. However, they also noticed that people start clicking unsubscribe links in messages with longer subject lines so they recommend keeping your subject lines under 150 characters for best results.
Some marketers believe that the limit of 20 characters is enough for a subject line. They argue that anything longer isn't read properly by humans. However, studies show that text strings of 21 characters or more can still be read effectively if they're displayed on a screen.
In conclusion, a subject line should be short but informative while trying to capture your reader's interest. There is no set rule on how many characters you should include; it depends on what kind of message you're sending and who is receiving it.
He attributes this to the fact that users expect less than 40 characters in a subject line and longer subjects are difficult to read on mobile devices.
2. Longer subject lines: There is no specific number of characters that defines a "long" subject line, but studies show that subjects between 100 and 500 characters receive the most clicks. The key is to not go too far with subject line length because users will stop reading if it's too long.
3. Use your entire subject line: Users do not typically click through based on just a few words in the subject line. Thus, including all of the important information required by your recipient will help ensure a high-quality conversion.
4. Be specific: If you're sending an email about hiring someone, for example, don't use the subject line "Open job." This is generic and could apply to many people or companies. Instead, write something like "Director of Marketing/Sales position available in San Francisco." More specific subject lines get responded to faster and more likely to result in a reply from the recipient.
Keep it brief. Many readers, particularly those reading your emails on mobile devices, prefer shorter communications. We propose that you limit yourself to 9 words and 60 characters. That's about the length of a typical tweet.
Use relevant keywords in your subject line. If someone is going to be reading your email at their leisure, they may not know what you're writing about without knowing something about you or your company. By including relevant keywords in your subject line, you increase your chances of getting noticed by those who read through their mailboxes looking for things to do.
Avoid using long sentences in your subject lines. Your reader's attention will likely be focused on the first few sentences of your email, so keep your messages short and sweet. Allow time for them to read more than one email message before hitting "reply" or "send."
Incorporate call-to-actions into your subject lines. Just as with opening paragraphs of articles and posts, inclusion of calls-to-action increases engagement. These can be buttons that take users directly to other pages on your site, applications, or products. Include relevant information such as prices or deadlines while keeping in mind that these will be seen by anyone who opens your email.
Don't overdo it with the jargon.