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Cold Email Checker

Enter email subject and body on the left, and real-time risk score, risk level, and optimization suggestions will be displayed on the right.

Enter Email Content

0/200

Sensitive words in the subject will receive double risk points

0/10000

Supports multi-line text, recommended maximum length 10,000 characters

Please enter email subject or body

Enter email subject or body content in the input fields above

Usage Instructions

1. What is a Cold Email Checker?

A cold email checker is a specialized tool designed to help B2B professionals optimize their cold outreach emails. It analyzes your email content for spam trigger words, excessive formatting, and other factors that may cause email filters to mark your message as spam or promotional content.

2. How to Use

  1. Enter Your Email Content: Paste or type your email subject line and body into the input fields on the left side of the tool.
  1. Review Real-Time Analysis: As you type, the tool will analyze your content and display:
  2. A risk score (0-100)
  3. Risk level (Low, Medium, High, or Danger)
  4. List of detected spam trigger words
  5. Optimization suggestions for each detected word
  1. Optimize Your Content: Click on any suggestion to highlight the corresponding keyword in your email. Replace detected words with the suggested alternatives to improve your spam score.
  1. Check Additional Factors: The tool also checks for:
  2. Capitalization Ratio: Emails with more than 10% fully uppercase words receive a penalty
  3. URL Count: Emails with more than 3 URLs are flagged as promotional
  1. Aim for Low Risk: A score below 5 indicates healthy email content that's less likely to be filtered by spam filters.

3. How the Spam Score Works

How the Spam Score Works

This score is calculated based on patterns commonly flagged by modern email filters (such as Gmail and Outlook), including spam keywords, urgency signals, automation markers, and phishing indicators.

Important Notes

  • A single word rarely causes spam classification on its own. Email filters make comprehensive judgments, and a single trigger word usually won't cause immediate filtering.
  • Repeated use of high-risk phrases significantly increases the score. If high-risk words appear multiple times in your email, the cumulative score will rise quickly.
  • Context matters: Some terms are safe in transactional emails but risky in cold outreach. For example, "unsubscribe" is legitimate in marketing emails but triggers filters in cold emails.

Score Levels

  • 0-5 (Low Risk): Likely safe for professional outreach. Email content is healthy and unlikely to be filtered.
  • 6-12 (Medium Risk): May trigger Promotions or filtering. Consider optimizing some content to reduce risk.
  • 13-20 (High Risk): High probability of reduced deliverability. Strongly recommend modifying email content and replacing high-risk words.
  • 21+ (Critical): Very likely to be flagged or blocked. Email content needs significant modification to improve deliverability.

Key Differentiator

This tool focuses on deliverability risk, not just obvious scams. Many emails fail not because they are malicious, but because they resemble bulk or automated outreach patterns. This tool not only detects obvious spam words but also identifies patterns that may cause emails to enter the "Promotions" tab or reduce deliverability, helping you optimize cold emails for better deliverability.

4. Best Practices

  • Keep it Professional: Avoid aggressive sales language and hype words
  • Limit URLs: Include only 1-2 links maximum in your cold emails
  • Use Normal Capitalization: Avoid excessive use of ALL CAPS
  • Personalize: Use the recipient's actual name instead of generic greetings
  • Focus on Value: Emphasize how you can help rather than what you're selling
  • Test Before Sending: Always check your email content before sending to ensure optimal deliverability

FAQ

Q: What is a cold email checker?

A: A cold email checker is a tool that analyzes your email content to detect spam trigger words and phrases that may cause your email to be filtered into spam folders or marked as promotional content. It helps you optimize your email content for better deliverability.

Q: How does the risk scoring work?

A: The tool analyzes your email subject and body against a database of 120+ spam trigger words. Words found in the subject line receive double points. Additional penalties are applied for excessive capitalization (over 10%) and too many URLs (over 3). The final score ranges from 0-100, with higher scores indicating higher spam risk.

Q: What risk levels are there?

A: There are four risk levels: Low (0-5 points), Medium (6-12 points), High (13-20 points), and Critical (21+ points). Lower scores indicate healthier email content that's less likely to be filtered.

Q: Why do subject line words get double points?

A: Email filters pay more attention to the subject line since it's the first thing recipients see. Spam trigger words in the subject are more likely to cause immediate filtering, so they're weighted more heavily in the risk calculation.

Q: How can I improve my email's spam score?

A: Review the suggested keywords and replace them with the provided alternatives. Reduce excessive capitalization, limit URLs to 1-2 maximum, and avoid aggressive sales language. Focus on value-driven, professional communication.

Q: Is my email content stored or sent to any server?

A: No. All analysis is performed entirely in your browser. Your email content never leaves your device and is not uploaded to any server. This ensures complete privacy and security.