Domain Health
Our Domain Health Check tool instantly analyzes your DNS, email, and web server configuration to ensure optimal performance, security, and deliverability.
About Domain Health
Domain Health Check: Diagnose DNS, Email & Server Issues
Check your domain’s DNS, email, and web configuration in one scan. The Domain Health Check Tool analyzes your domain setup for performance, security, and deliverability, helping you fix issues before they affect your website or email reputation.
A healthy domain ensures that your website is accessible, your emails reach inboxes, and your DNS configuration follows best practices.
Our Domain Health Checker performs a deep diagnostic scan across DNS, mail, and web services to help you:
- Detect configuration errors early
- Secure your domain against spoofing or blacklisting
- Improve performance, uptime, and email deliverability
What the Domain Health Check Analyzes
DNS Records Validation
Checks A, AAAA, CNAME, MX, TXT, NS, and SOA records to ensure proper DNS resolution and propagation.
Mail Server Configuration
Analyzes MX records, routing priorities, and authentication setups, including SPF, DKIM, and DMARC records, to confirm reliable and secure email delivery.
Web Server & SSL Health
Validates HTTP/HTTPS responses, SSL/TLS certificate status, redirects, and overall web accessibility.
Blacklist Reputation
Tests your domain and IP address against major DNS and email blacklists (RBLs) to identify deliverability risks.
DNSSEC & CAA Records
Verifies DNS Security Extensions (DNSSEC) and authorized Certificate Authorities (CAA) to prevent spoofing and unauthorized SSL issuance.
Nameserver Redundancy & Authority
Checks that all nameservers are properly synchronized and provide authoritative, responsive answers.
How the Domain Health Tool Works
- Enter your domain name (e.g., example.com).
- Click Run Domain Health Check.
- The system runs multiple DNS, mail, and web server diagnostics.
- You’ll receive a detailed report, color-coded by status: Healthy, Warning, Error.
Get instant visibility into your domain’s DNS performance, mail configuration, and overall system health.
Why Domain Health Matters
Website Accessibility
Identify DNS or hosting issues before your site becomes unreachable.
Email Deliverability
Prevent rejected or spam-flagged emails with correctly configured SPF, DKIM, and DMARC records.
Security & Compliance
Detect vulnerabilities such as expired SSL certificates, missing DNSSEC, or unauthorized CAA entries.
Performance Optimization
Ensure your DNS queries resolve quickly and reliably across global servers.
Reputation Management
Monitor your blacklist status to maintain trust and protect your sender reputation.
Common Issues Detected
- Missing MX, SPF, or DMARC records
- Expired or invalid SSL certificates
- Slow or unresponsive DNS servers
- Domain or IP blacklisted
- Misconfigured or unsynchronized nameservers
These problems can lead to failed emails, downtime, or loss of trust.
Our Domain Health Check helps you spot and fix them fast.
How to Improve Your Domain Health
- Run DNS Lookup to verify record accuracy
- Configure SPF, DKIM, and DMARC for email authentication
- Enable DNSSEC and CAA for added security
- Regularly check for blacklist listings
- Renew and monitor SSL certificates before expiry
Run a Free Domain Health Check Now
Quickly scan your domain to identify DNS, email, and web server issues in seconds.
Ensure uptime, deliverability, and security, all from one simple test.
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Frequently Asked Questions About Domain Health
What is a good domain health score?
A domain with no DNS, mail, or web errors, passing SPF, DKIM, DMARC, SSL, and DNSSEC checks, is considered healthy.
How often should I check domain health?
Run a domain health test after DNS changes, SSL renewals, or hosting migrations. Checking every few weeks is recommended.
Does domain health affect SEO?
Yes. Technical issues like downtime, broken DNS, or invalid HTTPS can hurt your site’s crawlability and search rankings.
Can I check subdomains?
Yes, you can test any subdomain (e.g., mail.example.com) for DNS, MX, and web configuration issues.
What if my domain is blacklisted?
The tool will identify blacklist entries so you can request removal and restore your sender reputation.