Content Checker
Compose your email content with rich formatting and links, then analyze it for spam triggers, formatting issues, and deliverability risks.
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Email Content Deliverability
Your domain reputation might be pristine, but if your email content looks like spam, it will still land in the junk folder. Copywriting is the final frontier of deliverability.
What are Spam Words?
Spam filters analyze the language in your email against machine learning models trained on millions of spam messages. Words like "100% free", "urgent", "guarantee", or excessive use of dollar signs and exclamation points will trigger spam filters. Our content checker flags these high-risk words so you can rephrase them naturally.
The HTML-to-Text Ratio
Cold emails should look like they were typed out manually by a real human. If your email contains massive blocks of HTML, tracking pixels, heavily formatted tables, or more code than actual text, Google and Outlook will immediately flag it as promotional marketing automation and route it to the Promotions or Spam tab.
Avoid URL Shorteners
Never use public URL shorteners like Bitly or TinyURL in your cold emails. Spammers and phishers abuse these services to hide malicious links, meaning the domains are inherently blacklisted by major spam filters. Always use naked domains or your own custom tracking domain.
Link Density and Images
A normal B2B cold email rarely contains more than one or two links (usually just your signature). If you stuff 5+ links into a short 100-word email, it looks like a phishing attempt. Similarly, relying entirely on a large image with very little text is a classic spamming technique used to bypass text filters, which will result in immediate penalization.