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Domain Scanner

Scan your domain for vulnerabilities, email security issues, and DNS misconfigurations

What Is a Domain Health Check?

A domain health check is a thorough evaluation of your domain’s setup that determines how well it’s safeguarded against threats and cyberattacks. The health of your domain is influenced by the effectiveness of your email authentication methods, DNS configurations, and overall security posture. Keeping your domain in good health is essential for protecting your brand, avoiding phishing attempts, and ensuring reliable email delivery.

Domain scanning tools play a crucial role in monitoring domain health. These tools inspect authentication records such as SPF, DKIM, DMARC, and BIMI to identify misconfigurations, weaknesses, or potential security issues. By using a domain scanner, you can proactively address risks, strengthen your domain’s defenses, and preserve your domain’s reputation.


Privacy Disclaimer
We respect your privacy and are committed to protecting your data. Our domain scanner does not collect, store, or sell any personal or domain-related information. All scans are performed securely and locally, and no data is transmitted to third parties. The tool is designed solely to help you assess and improve your domain’s health and security—your information remains entirely yours.

Why Check Domain Security?

Your domain’s protection is essential for preserving your brand image, improving email delivery rates, and building trust with your audience. Routinely checking your domain for SPF, DKIM, DMARC, and BIMI records helps you stay ahead of emerging threats.

Protects Your Domain Reputation

Protects Your Domain Reputation

Monitoring your domain helps block phishing and spam attempts that could damage your credibility.

Ensures Email Deliverability

Ensures Email Deliverability

Routine checks uncover issues in SPF, DKIM, DMARC, and BIMI records that may affect email performance.

Improves Email Open Rates

Improves Email Open Rates

Confirming correct BIMI setup enhances brand visibility and builds recipient trust.

Meets Email Authentication Standards

Meets Email Authentication Standards

Domain scans verify compliance with recognized email security protocols and best practices.

Frequently Asked Questions

What is a Domain Scanner?

A domain scanner is a full-featured diagnostic tool built to uncover potential issues in your domain’s security setup. With just one click on the "Show Results" button, you can instantly review your SPF, DKIM, DMARC, and BIMI records to understand how your domain is configured.

Using the DMARC Domain Analyzer & Checker tool, you can:

  • View detailed SPF record results, identify any problems, and access guidance for validating and correcting your SPF setup.
  • Check the status of your DKIM record, spot issues with selectors, and follow steps to properly configure DKIM for your domain.
  • Analyze your DMARC record, detect errors, and get instructions for implementing a valid and secure DMARC policy.
  • Review your BIMI record details, find potential misconfigurations, and learn how to verify and optimize your BIMI setup.

The Domain Scanner tool functions as a domain health checker, helping you stay ahead of potential threats and secure your domain. It’s more than just a basic scanner—it offers a comprehensive domain analysis (Domain Test) to help you detect and resolve issues that could impact your online security.

What is an "Empty Record"?

If one of your domain’s records—such as SPF, DKIM, DMARC, or BIMI—appears as an “Empty Record,” it means that this record type hasn’t been implemented in your DNS. To resolve the issue, you’ll need to generate and configure the missing record.

Here’s what to do for each email authentication record missing from your DNS:

For SPF records:

  • Review email handling reports
    Check reports to understand how your emails are being processed by receiving servers.

  • Identify SPF results
    Determine whether an SPF record is needed and what adjustments are required based on report findings.

  • Generate and configure your SPF record
    Use an SPF generator to create a record that includes all necessary sending sources, such as your mail servers and third-party services.

  • Monitor email authentication
    After implementing SPF, track email deliverability and authentication results to ensure proper configuration.

For DKIM records:

  • Create a DKIM key pair
    Generate a DKIM key pair using your email server or through your email service provider’s portal.

  • Publish the public key in DNS
    Add the public key to your DNS as a TXT record for the domain used to sign outgoing emails.

  • Configure email signing
    Set up your mail server or provider to use the private key for signing outgoing messages.

  • Track DKIM performance
    Monitor DKIM signatures through email authentication reports to verify successful implementation.

For DMARC records:

  • Start with a monitoring policy
    Add a DMARC record with a “none” policy to begin tracking email traffic and identifying sources.

  • Analyze traffic sources
    Use reports to distinguish between legitimate and unauthorized email sources.

  • Authenticate valid senders
    Ensure all legitimate sources are properly authenticated using SPF and DKIM.

  • Strengthen your DMARC policy
    Gradually move to a “reject” policy to block unauthorized emails and protect your domain from spoofing.

For BIMI records:

  • Apply a strict DMARC policy
    Make sure your DMARC policy is set to “quarantine” or “reject” to meet BIMI requirements.

  • Prepare a compatible logo
    Convert your brand logo into a BIMI-compliant SVG format that meets specification standards.

  • Obtain a VMC certificate
    Secure a Verified Mark Certificate to validate your logo and enable supported email clients to display it.

How to improve domain security and trust?

In addition to registering your domain with a trusted registrar that offers strong security features, it’s important to focus on protecting your email infrastructure to improve your domain reputation. A domain scanner is a diagnostic tool that helps you begin your journey toward stronger domain security.

Based on the results of your domain testing, you’ll need to review your email authentication protocols and configure each one correctly.

To simplify the process, consider using an all-in-one email authentication platform that guides you through setup and monitoring. You’ll receive detailed insights into SPF, DKIM, and DMARC performance, allowing you to identify and resolve configuration issues. With the right tools, you can enhance email deliverability, prevent phishing attempts, and build greater trust in your communications.