Check your domain in seconds

SSL, DNS, email security and WHOIS — free, no login required.

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Free tools

Everything you need to check your domain

GATEWAY.SE TOOLBOX
[1]
SSL Checker[MOST USED]

Check SSL certificate status, expiry and security grade.

>[2]
DNS Lookup

Lookup DNS records, MX, SPF, DMARC and mail configuration.

>[3]
WHOIS Lookup

Check domain owner, registrar and expiration date.

>[4]
Email Security

Test SMTP TLS, STARTTLS, SPF, DKIM, DMARC and MTA-STS.

>[5]
Email Header Analyzer

Parse email headers — delivery path, delays, TLS and spam analysis.

>[6]
Email Health[NEW]

Complete email health score — DNS, auth, encryption and deliverability.

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What we check

Comprehensive analysis of your domain infrastructure, for free.

  • [+]SSL certificate validity and grade
  • [+]DNS records and configuration
  • [+]WHOIS and expiration dates
  • [+]Email security (SPF, DKIM, DMARC)
  • [+]Security issues and recommendations

Fix issues instantly with Gateway

Found a problem? Fix it in one click with Gateway.

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Register and manage domains

From 129 SEK/year

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Managed DNS hosting (ns1.nszone.org, ns2.nszone.org, ns3.nszone.io, ns4.nszone.io)

Free with every domain

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SSL certificates with auto-renew

Free Let's Encrypt or Wildcard

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Business email hosting

From 49 SEK/month

Know what you have. Fix what matters.

Create a free account to save results, monitor changes, and earn Gateway Credits.

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