A tool that analyzes email subject characteristics and suggests best practices to lets you get a higher open rate.

Characteristics

Case type

  • Can be any of these types: Title, Sentence, Lower, Upper, Unknown.
  • Subject line with Title case perform best where major words are capitalized, and most minor words are lowercase (ex: Get an All-in-one, Powerful and Easy-to-use Marketing Automation Platform).
  • The worst type is the Upper case where all letters are capitalized.

Words count

  • Subject words count includes emoji that is represented as 1 word and without considering shortcode.
  • Subject lines with words count around 5 words perform best.
  • The worst word count is 15 and higher.

Characters count

  • Subject characters count includes emoji counted as 2 characters and without considering shortcode.
  • Subject lines with characters count around 20 perform best.
  • The worst characters’ count is 50 and higher.

Good words

  • These are words that increase your chance to get your email opened.
  • Subjects with 1-3 good words perform best.
  • Subjects with no good words might decrease your email open rate.
  • Example of good words: top stories, important, thanks, better, great deals, remember, congratulations, event, update, last chance, promotional, new, holiday, on sale now, special, celebrate, soon, exclusive, available, bulletin.

Bad words

  • These are words that decrease your chance to get your email opened.
  • Subjects with no bad words perform best.
  • Subjects with bad words count higher than 3 perform worst.
  • Example of bad words: unlimited, shopper, 100% free, new customers only, what’s keeping you? risk-free, you have been selected, great offer, registration, strong buy, brochure, invitation, special promotion, newsletter, attend.

Has emoji

  • Subjects with at least 1 emoji might increase your chance to get your email opened since most marketers don’t use emojis in their subject.

Has number

  • Subjects with at least 1 number might increase your chance to get your email opened.

Emotional Trigger words

  • These are words that usually emotionally trigger recipient attention and action.
  • Subjects with at least 1 emotional trigger word might increase your chance to get your email opened.
  • Example of emotional Trigger words: deadline, offer, attractive, best-selling, wonderful, limited, download, affordable, empower, chance, reward, revealing, tremendous, thrilled.

Has shortcode

  • When a recipient sees his name within the subject line of your email, usually pay more attention to what you’ve got to say and that might increase your chance to get your email opened.

Examples

Subject #1

  • Case Type: Title
  • Words Count: 5
  • Characters Count: 32
  • Good Words Count: 2 (your, special)
  • Bad Words Count: 0
  • Has Emoji: Yes
  • Has Number: No
  • Has Shortcode: No
  • Has Trigger Words: 2 (gift, special)

Subject #2

  • Case Type: Title
  • Words Count: 6
  • Characters Count: 28
  • Good Words Count: 2 (your, new)
  • Bad Words Count: 0
  • Has Emoji: No
  • Has Number: Yes
  • Has Shortcode: Yes
  • Has Trigger Words: 2 (new, now)

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