Email Checker Website Semrush May 2026

.check-status.passed background: #d1fae5; color: #065f46;

.status.valid color: #10b981; .status.invalid color: #ef4444; email checker website semrush

<div class="recommendation" id="recommendation"></div> </div> .check-status.passed background: #d1fae5

.example-btn padding: 8px 15px; background: #f3f4f6; color: #333; font-size: 0.9rem; .status.valid color: #10b981

✅ Format Validation - Checks email syntax ✅ Domain Verification - Ensures domain exists ✅ MX Records Check - Validates mail servers ✅ Disposable Email Detection - Identifies temp emails ✅ SMTP Verification - Basic server validation ✅ Scoring System - 0-100 quality score ✅ Recommendations - Actionable insights ✅ Real-time Feedback - Instant results ✅ Example Tests - Quick testing options To Run: npm install npm start Then open http://localhost:3000