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Deliverability

Spam word checker

Paste your subject line and email copy to scan for the words and patterns spam filters distrust. You get a risk score, a list of flagged terms, and structural signals like ALL-CAPS runs.

What the checker looks for

Spam filters weigh many signals, but certain words and formatting patterns reliably raise suspicion. This tool scans your copy for a lexicon of known trigger phrases and counts structural red flags — then scores the overall risk so you can clean it up before sending.

  • Trigger words — 'free', 'act now', 'risk-free', '$$$' and dozens more
  • ALL-CAPS words — shouting reads as spam to filters and people
  • Trigger density — a few flagged words in long copy matters less than many in a short one

Writing copy that lands

  • Swap hype for specifics — say what the reader gets, not 'AMAZING FREE OFFER'
  • Avoid stacking exclamation marks and all-caps for emphasis
  • Keep a healthy text-to-link ratio; a wall of links looks promotional
  • Remember: clean copy helps, but authentication and reputation matter more

Frequently asked questions

Will avoiding these words guarantee inbox placement?

No. Content is one signal among many. Authentication (SPF, DKIM, DMARC), sender reputation and engagement carry more weight — but spammy copy can still tip a borderline message.

Does the checker work in other languages?

The structural checks — caps, density, punctuation — apply in any language. The trigger-word lexicon is English-focused, so weight that part accordingly.

Is my copy stored?

No. The scan runs entirely in your browser; nothing you paste is sent or saved anywhere.

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Free Email Spam Word Checker — Climails