FREE · NO ACCOUNT NEEDED
Domain Health Check
Review DNS, mail policies, HTTPS and domain expiration together in one downloadable domain health report.
Open toolFREE TOOLS. USEFUL ANSWERS.
A clearer picture.
A better next step.
Check your domain, understand the findings, and prepare the next fix. Connected reports, practical builders, and individual tools—all free.
Start with a combined report, follow its suggested next steps, then recheck after applying your changes. Download or share your report when you need a second set of eyes.
Start with a health report
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Email Security Check
Review MX, SPF, DMARC and an optional DKIM selector, with practical next steps for your business email.
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Website Security Check
Combine HTTPS certificate, redirect and browser security header checks in a lightweight website report.
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DNS Health Check
Review public IPv4, IPv6, nameserver and mail records together, then prepare DNS changes with the record generator.
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Hosting Readiness Check
Check public DNS, email, HTTPS and domain renewal details before a hosting move, with a migration preparation checklist.
Open toolBuild your next fix
PRIVATE · IN YOUR BROWSER
SPF Record Builder
Build a single SPF TXT record from your authorized mail providers and sending IP addresses, then check the published policy.
Open toolPRIVATE · IN YOUR BROWSER
DMARC Record Builder
Create a DMARC monitoring or enforcement TXT record with an aggregate reporting mailbox and an explanation of the next steps.
Open toolPRIVATE · IN YOUR BROWSER
DKIM Setup Guide
Create a DKIM setup checklist for your domain and selector, then verify the public record with the DKIM checker.
Open toolPRIVATE · IN YOUR BROWSER
DNS Record Generator
Prepare A, AAAA, CNAME, MX or TXT records with provider-ready fields and a DNS zone-file example.
Open toolPRIVATE · IN YOUR BROWSER
Redirect Generator
Create an exact-path Apache or Nginx redirect and test the response with the connected redirect checker.
Open toolPRIVATE · IN YOUR BROWSER
Security Headers Generator
Prepare Apache or Nginx browser security headers with a report-only Content Security Policy for testing.
Open toolPRIVATE · IN YOUR BROWSER
.htaccess Generator
Generate a focused Apache .htaccess snippet for an exact-page redirect or basic browser security headers.
Open toolPRIVATE · IN YOUR BROWSER
Nginx Config Generator
Generate Nginx server-block snippets for an exact-page redirect or security headers and verify the resulting HTTP response.
Open toolPRIVATE · IN YOUR BROWSER
Email Setup Checklist
Build a practical DNS, authentication and delivery checklist for a new business email setup or mailbox migration.
Open toolWebsite tools
FREE · NO ACCOUNT NEEDED
SSL Checker
Check HTTPS certificate trust, hostname matching and expiration.
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Domain Expiration
Find registration and expiration dates from public RDAP records.
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HTTP Status
See the HTTP response code returned by a website URL.
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Redirect Checker
Follow a website’s redirect chain and identify loops or unexpected destinations.
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Security Headers
Check common browser security headers returned by your website.
Open toolDNS tools
FREE · NO ACCOUNT NEEDED
DNS Lookup
Look up A, AAAA, CNAME, MX, TXT and nameserver records for a domain.
Open toolEmail tools
FREE · NO ACCOUNT NEEDED
SPF Checker
Find your SPF record and spot common email sender policy problems.
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DMARC Checker
Check your domain’s DMARC policy and reporting configuration.
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MX Checker
Find the mail servers and priorities published for your domain.
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DKIM Checker
Look up the public DKIM key for a domain and provider selector, then connect the result to your email security report.
Open toolNetwork tools
FREE · NO ACCOUNT NEEDED
Port Checker
Check one common service port on a public host you own or administer.
Open toolAdmin tools
PRIVATE · IN YOUR BROWSER
JSON Formatter
Validate and format JSON in your browser without uploading its contents.
Open toolPRIVATE · IN YOUR BROWSER
Password Generator
Generate a random password privately in your browser.
Open toolQuick checks, no large downloads. Results reflect a point in time and may be cached for two minutes. Need a hand interpreting them? Send the results with an inquiry.