Email Health Checker Instantly: Diagnose Your Email Domain
Enter your email domain and get a comprehensive health report covering all technical factors impacting your deliverability.
Don’t Just Send. Send Confidently.
Poor domain health can tank deliverability and damage brand trust. Check and fix it before it costs you.
Check Your Technical Setup
Validate DNS records and ensure everything is configured properly.
Protect Your Sender Reputation
Identify blacklist issues and reputation risks proactively.
Improve Inbox Rates
Strengthen your technical foundation to avoid spam, maximize inbox placement and engagement.
What You Can Do With Sparkle’s Email Health Checker
Get a full diagnostic view of your email sending domain.
Get Your Health Score Instantly
Receive an overall score reflecting your domain’s email health.
Comprehensive Diagnostics
Check DNS records, blacklists (100+ databases), authentication status, and reputation.
Actionable Fixes
Get prioritized steps to improve deliverability and protect your sender reputation.
Who Can Use Sparkle’s Email Health Checker
A must-have for teams that rely on email for growth and trust.
Founders & CEOs
Safeguard your brand reputation and ensure messages reach key contacts.
Marketing & Growth Teams
Keep campaigns performing at their best and avoid technical pitfalls.
Sales & Outreach Leaders
Maximize deliverability and improve outreach outcomes.
Understanding Your Result
Get a full domain health score and clear insights into what needs fixing. Pair with Sparkle.io’s deliverability tools to maintain optimal performance.
How It Works
Getting started takes 30 seconds:
Enter Your Domain
Input your email domain to start the health check.
Run Instant Analysis
Our tool scans technical factors and returns a detailed report instantly.
Review & Improve
Use prioritized recommendations to improve domain health and deliverability.
Supercharge Your Campaigns with Sparkle.io
Sparkle.io keeps your email health strong beyond basic checks.
200 free email verification credits/day
AI-powered cold email workflows
Built-in CRM and multichannel outreach tools
Conversion-focused tracking and insights
Frequently asked questions
Everything you need to know about the product and billing.
It scans your domain’s DNS records, authentication setup, blacklists, and reputation to provide a full health score.
Yes! You can check and preview your health report for free. To see full recommendations, create a free Sparkle.io account.
Above 80 is strong. Scores below 70 indicate issues needing attention.
No — we provide step-by-step fixes, but changes must be made with your DNS and email provider.
Trusted by High-Growth B2B Teams
Join 1,000+ startups and scale-ups already powering their outreach with Sparkle.