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Subject line

The sample line is 39 characters and scores 79.

In the inbox

79

Characters
39
Spam phrases
2
Emoji
1
Capitals
29%

Likely clean — deliverable without major spam flags.

act now limited time

The score starts at 100. Each matched phrase costs 8, each emoji costs 5, and each exclamation after the first costs 4. Capitals over half of the Latin letters cost 15. A line longer than 60 costs 12, and a line shorter than 10 costs 5. The length is UTF-16, so the sample emoji counts as 2 and the line is 39. Only A–Z count as capitals, so Hangul, Arabic, and Chinese are not shouting. A fullwidth exclamation counts too. The extra phrases in each language are common sales words, not a mail company’s list. The published list includes free trial twice.

Why this exists

A browser check for a subject and its preview. The sample emoji makes the length 39, and the score is 79.

The score starts at 100. Each matched phrase costs 8, each emoji costs 5, and each exclamation after the first costs 4. Capitals over half of the Latin letters cost 15. A line longer than 60 costs 12, and a line shorter than 10 costs 5. The length is UTF-16, so the sample emoji counts as 2 and the line is 39. Only A–Z count as capitals, so Hangul, Arabic, and Chinese are not shouting. A fullwidth exclamation counts too. The extra phrases in each language are common sales words, not a mail company’s list. The published list includes free trial twice.

  1. 01How to use it

    A browser check for a subject and its preview. The sample emoji makes the length 39, and the score is 79.

    The score starts at 100. Each matched phrase costs 8, each emoji costs 5, and each exclamation after the first costs 4. Capitals over half of the Latin letters cost 15. A line longer than 60 costs 12, and a line shorter than 10 costs 5. The length is UTF-16, so the sample emoji counts as 2 and the line is 39. Only A–Z count as capitals, so Hangul, Arabic, and Chinese are not shouting. A fullwidth exclamation counts too. The extra phrases in each language are common sales words, not a mail company’s list. The published list includes free trial twice.

  2. 02What you get

    79

    39

    EnteredAct NOW 🚨 50% OFF — limited time only!

    Subject Act NOW 🚨 50% OFF — limited time only!
    Characters 39
  3. 03Worth knowing

    The score starts at 100. Each matched phrase costs 8, each emoji costs 5, and each exclamation after the first costs 4. Capitals over half of the Latin letters cost 15. A line longer than 60 costs 12, and a line shorter than 10 costs 5. The length is UTF-16, so the sample emoji counts as 2 and the line is 39. Only A–Z count as capitals, so Hangul, Arabic, and Chinese are not shouting. A fullwidth exclamation counts too. The extra phrases in each language are common sales words, not a mail company’s list. The published list includes free trial twice.

    The sample line is 39 characters and scores 79.

Questions

QIn the inbox?
A79
Q60?
A60
QCapitals?
AA–Z

How this page works it out

A browser check for a subject and its preview. The sample emoji makes the length 39, and the score is 79. The sample line is 39 characters and scores 79.

The sample Act NOW 🚨 50% OFF — limited time only! is 39 UTF-16 units. The hits are act now and limited time, there is one emoji, the capitals round to 29, and the score is 79. The first exclamation is free.

Only A–Z count as capitals. A Hangul subject is not shouting. A fullwidth exclamation counts too. The words added for each language are common sales words, not a mail company’s list. The published list includes free trial twice.

  • # 79
  • # 39
  • # UTF-16