The DNS Domain health checker helps you check a domain's DNS health online. Use it to perform a domain security check or email health check.
Domain health checker finds issues, warnings, and complete information (standard procedures and best practices) regarding your domain's DNS. Also, check your website's DNS records and IP in blacklists.
SPF
Domain Blacklist
DNS
DMARC
MX
MX Blacklist
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DNS Checker brings you this free domain tester that helps users perform a free domain health check. This tool helps website administrators and SEO personnel spot errors and misconfigurations.
A healthy DNS setup is necessary for a website to stay online, run smoothly, and be secure.
This DNS Health Checker helps you:
When you run a domain name through our domain tester, it performs various checks.
Our tool checks the domain's core DNS settings. It checks whether the domain is working or not. Also, it helps you verify whether the domain's DNS records comply with recommended standards.
Email delivery depends heavily on properly configured DNS records. Our email domain health checker analyzes your mail setup and highlights any potential issues.
SPF records help prevent email spoofing and improve email deliverability. The tool runs SPF record tests to check availability and syntax accuracy. It also looks up count limits and checks SPF record length for the provided domain name.
DMARC adds another layer of email protection and helps domain owners prevent phishing attacks. Our domain security checker tests DMARC records and also performs syntax verification. It also reviews reporting configuration along with authentication alignment checks.
A domain or mail server listed in a blacklist can negatively affect email delivery. This domain issue checker checks associated mail servers and IP addresses across multiple blacklist databases. IP blacklist checks help you understand domain and email reputation across databases.
You can simply check your domain health by running a domain test. This test can easily be performed using this domain tester by DNS Checker.
To check your domain health online:
Examine the results, warnings, errors, and fix the issues to improve your domain health.
When you test a domain or perform an email health check with our tool, you first see a summary of results that includes the following information.
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Here you will see the number of tests our domain status checker has performed. The tool clearly shows which tests pass and which return errors. Also, you get a warning indicating the number of records that do not fully comply with the standards. |
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Blacklist tests show whether your domain IP or mail servers appear in any known blacklist databases. It helps you identify domain reputation issues that could affect email delivery. If you see a warning here, your domain email might be blacklisted in databases. |
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Our tool checks the provided email domain and reviews its health and configuration. MX records and SMTP records are tested. You get a clear preview of whether the records are configured correctly or require correction. |
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During the domain health test, our tool checks records configured in the DNS setup. Mainly, DMARC, SPF, and NS records are checked. You see a clear summary of how many DNS records comply with standards and which of them entail problems. |
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After the results summary, our email domain health checker shows you the problems that require your attention. These are the warnings highlighted in the summary. You get a brief description in the results columns that tells you what is causing the problem and what needs to be fixed.
Beneath these, you get a detailed preview of every domain test the tool performed, along with the session transcript.
A domain DNS health check means analyzing DNS records configured for the DNS setup of that domain name. During an email domain health check, these records are tested to identify problems and to validate whether they comply with standards.
A blacklist check helps you find out whether your website IP address or email server has been flagged as a source of spam or suspicious activity. If your IP is blacklisted, emails may not reach inboxes, and some services may block connections from your domain.
To identify problems in a domain's DNS records, open the DNS health checker. Run the domain name through it. You will get a detailed report showing clear warnings on what records have problems and require attention.
If you own or manage a domain name, check its health at least once a month. Any error in the domain DNS setup can affect website uptime, while a security issue can put the domain's reputation at risk. Performing regular checks helps you avoid both.
Yes, getting a domain blacklisted heavily affects the email delivery. Receiving email servers usually check the domain's email reputation first and, based on that reputation, route the email next. And if a domain is blacklisted, the email might bounce back or land in the spam or junk folder.
