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The Domain Scanner is an advanced tool designed to analyze and monitor the security and authentication status of your domain. It helps you identify vulnerabilities, misconfigurations, and potential threats that could impact your email deliverability and domain reputation
Scan and Analyze Your Domain
Protect Your Domain and Outbound Emails—All in One Place
DMARCtron’s Domain Scanner is a free and intuitive tool that empowers you to evaluate and secure your domain’s health in just one click. Enter your domain name, and our scanner will provide a detailed analysis of your SPF, DKIM, DMARC, and BIMI records to ensure your domain is safeguarded against threats like phishing and spoofing.
With the Domain Analyzer, quickly identify vulnerabilities, weaknesses, and potential security risks through an advanced domain health check. The tool also provides actionable insights to bolster your domain’s reputation and security.
More than just a scanning tool, the DMARCtron Domain Scanner is a comprehensive solution for testing and strengthening your domain’s email authentication and security infrastructure.
Why Check Domain Security?
Protect Your Domain Reputation
DMARC, DKIM, SPF, and BIMI records authenticate your email messages and prevent fraudulent emails from being sent using your domain. Bad actors using your domain for phishing or spamming can negatively affect your domain’s reputation. A scan will help you detect and prevent unauthorized access.

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Read most frequent questions
Q. What is a Domain Scanner?
The DMARCtron Domain Scanner is an advanced domain health diagnostic tool engineered to help you identify and resolve potential issues within your domain security infrastructure. With a single click of the “Show Results” button, you can swiftly analyze your SPF, DKIM, DMARC, and BIMI records to assess your domain’s configuration and ensure optimal security.
Key Features of the DMARCtron Domain Analyzer & Checker Tool:
- SPF Record Analysis: Gain detailed insights into your SPF record, identify potential misconfigurations, and receive step-by-step guidance on validating and verifying your SPF setup.
- DKIM Record Evaluation: Review the status of your DKIM record, detect issues related to DKIM selectors, and access instructions for implementing and validating the correct DKIM configuration for your domain.
- DMARC Record Inspection: Check, lookup, and analyze your DMARC record’s status, identify potential issues, and receive actionable recommendations for validating and deploying the correct DMARC policy.
- BIMI Record Verification: Examine your BIMI record in detail, detect any inconsistencies, and follow clear instructions to validate and verify your BIMI implementation.
The DMARCtron Domain Scanner goes beyond basic domain scanning. It serves as a comprehensive domain health checker, enabling you to proactively address vulnerabilities and safeguard your domain against emerging threats. By providing an in-depth Domain Test analysis, DMARCtron empowers you to identify and resolve potential security gaps, ensuring the integrity and reliability of your online presence.
Q. Why Check Domain Security?
Regularly scanning and diagnosing your domain for DMARC, DKIM, SPF, and BIMI records is critical for maintaining a secure and trustworthy email ecosystem. Here’s why:
- Protect Your Domain Reputation
DMARC, DKIM, SPF, and BIMI records authenticate your email messages, preventing unauthorized parties from sending fraudulent emails using your domain. Malicious actors exploiting your domain for phishing or spamming can severely damage your domain’s reputation. A comprehensive domain scan helps detect and mitigate unauthorized access, safeguarding your domain’s integrity. - Ensure Email Deliverability
Proper implementation of DMARC, DKIM, SPF, and BIMI records ensures that your emails reach your recipients’ inboxes without being flagged as spam or rejected. A thorough domain scan identifies potential DNS record misconfigurations that could compromise email deliverability, enabling you to address issues proactively. - Improve Email Open Rates
BIMI records enhance email engagement by displaying your brand logo alongside your messages in recipients’ inboxes. A domain scan verifies that your BIMI records are correctly configured, ensuring your logo is displayed accurately. This boosts brand recognition, fosters trust, and increases email open rates. - Meet Industry Email Authentication Standards
DMARC, DKIM, SPF, and BIMI records are widely recognized as industry standards for email authentication. Implementing these protocols ensures compliance with the requirements of email providers, government regulations, and organizations like DMARC.org. A domain scan confirms that your records are properly configured, helping you meet these essential standards.
Q. What Does the “Empty Record” Mean?
If one of your domain’s records—such as SPF, DKIM, DMARC, or BIMI—is shown as an “Empty record,” it indicates that the record type is not implemented in your DNS. To resolve this issue, you must generate and configure the missing record. Below are the steps to address each type of email authentication record:
For SPF Record:
- Evaluate Your DMARC Reports:
Review your DMARC reports to understand how email servers are handling your emails. - Identify SPF Results:
Analyze the reports to determine whether an SPF record is needed and identify any necessary adjustments. - Adjust Your SPF Record Using an SPF Generator:
Use an SPF generator tool to create an SPF record that includes all relevant IP addresses of your mail servers and any third-party services used for sending emails. - Analyze DMARC Reports for Verification:
After implementing the SPF record, monitor email deliverability and review DMARC reports to ensure proper authentication. Take corrective action if any issues are detected.
For DKIM Record:
- Generate a DKIM Key Pair:
Use your email server or a DKIM key generator tool to create a DKIM key pair. If you use a third-party email service, generate the key through their portal. - Publish the Public Key in DNS:
Add the public key to your DNS as a TXT record for the domain responsible for signing emails. - Configure Your Mail Server to Sign Emails:
For dedicated servers, configure the email server to use the private key for signing outgoing emails. For third-party services, enable DKIM signing through the provider’s portal. - Monitor DKIM Signatures:
Regularly evaluate DMARC reports to ensure DKIM signatures are authenticating emails correctly.
For DMARC Record:
- Add DMARC in the Monitoring Stage:
Use a DMARC generator tool to create a DMARC record with a policy of “none” to begin monitoring email traffic and identifying legitimate and illegitimate sources. - Evaluate DMARC Reports and Identify Sources:
Analyze DMARC reports to distinguish between legitimate and illegitimate email sources and refine your email authentication practices. - Authenticate All Legitimate Sources:
Ensure all legitimate email sources are authenticated by implementing SPF and DKIM records. - Enforce DMARC Policy:
Gradually transition to a DMARC policy of “reject” to block unauthorized email traffic and protect your domain from spoofing and phishing attacks.
For BIMI Record:
- Enforce DMARC Policy:
Ensure your DMARC policy is set to “reject” or “quarantine” to enforce email authentication and prevent domain misuse. - Prepare a BIMI-Compatible Logo:
Use DMARCtron’s BIMI Converter Tool to create a BIMI-compatible SVG logo that meets all required specifications. - Add BIMI Record:
Host the logo and publish a BIMI TXT record using a BIMI generator tool to specify the logo’s location. - Obtain a Verified Mark Certificate (VMC):
Acquire a VMC to validate the authenticity of your logo, enabling email service providers (ESPs) to display your brand logo in recipients’ inboxes.
Q. How To Improve Domain Security and Trust?
In addition to registering your domain with a reputable registrar that offers robust security measures, prioritizing email infrastructure protection is critical for enhancing your domain reputation. DMARCtron’s Domain Scanner is an advanced diagnostic tool designed to help you take the first step toward achieving stronger domain security.
Based on the results of your DMARC tests, you’ll need to implement and properly configure essential email authentication protocols, such as SPF, DKIM, and DMARC.
To simplify this process, we recommend signing up with DMARCtron, our all-in-one email authentication platform. DMARCtron provides comprehensive guidance, detailed reports on SPF, DKIM, and DMARC failures, and actionable insights to help you identify and resolve deployment issues efficiently.
With DMARCtron, you can:
- Enhance Email Deliverability: Ensure your emails reach recipients’ inboxes without being marked as spam.
- Prevent Phishing Attacks: Safeguard your domain from unauthorized use and phishing attempts.
- Build Trust and Credibility: Strengthen the trustworthiness of your email communications with robust authentication practices.
Take the first step toward securing your domain and optimizing your email infrastructure with DMARCtron’s cutting-edge tools and expert support.
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