邮件主题行评测器

根据潜在打开率为邮件主题行打分。检查长度、垃圾邮件触发词和紧迫感标记。

如何使用本工具

1
Type or paste your subject line into the input box.
2
Read the 0-100 score that appears instantly as you type.
3
Review the checklist below it for length, all-caps, punctuation, and matched spam words.
4
Edit the wording and watch the score update live until you are happy.

邮件主题行决定了打开率。最佳实践包括：30-50个字符（适配移动端显示）、避开垃圾邮件触发词（免费、！！！、全大写）、加入个性化标记，以及在不沦为标题党的前提下营造好奇心。本工具会根据这些规律来打分。

Quickly sanity-checking a newsletter subject before scheduling a campaign in Mailchimp or Klaviyo.
Trimming a subject line down to fit the roughly 30-50 character mobile preview window.
Catching an accidental ALL-CAPS subject that slipped in from a copied headline.
Spotting leftover '!!!' or '???' before a marketing blast goes out.
Teaching a junior marketer why words like 'FREE' and 'ACT NOW' have a spammy reputation.
A/B brainstorming two subject variants side by side to see which scores cleaner.

主题行的理想长度是多少？▼

30-50个字符可适配桌面端和移动端的预览。更长的主题行会被截断；过短的则可能效果更差。

哪些词会触发垃圾邮件过滤器？▼

免费、保证、立即行动、$$$、全大写以及过多的标点。现代的过滤器更聪明了，但这些老旧的触发词仍会带来损害。