Free network diagnostic tools for DNS, IP, email and SSL checks
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Free download from Mac App Store with free trial. Pro access available as one-time lifetime purchase.
Free plan: All 41 tools with unlimited checks, 3 saved domains with daily monitoring, 7 days of history. Pro plan: $29/month for 50 domains, scans every 6 hours, email, Slack, Telegram and webhook alerts, 12 months of history and API access.
Key features
Monitor usage, balances, and credits from 14 AI providers
Menu bar app displaying provider information
Provider dashboard
Usage history tracking
Widgets and alerts
Credentials stored in Mac Keychain
Direct HTTPS connection to provider APIs
Local data storage on Mac
DNS Lookup - resolve A, AAAA, MX, TXT, NS, CNAME records
Blacklist Checker - query 7 major DNS blocklists
SSL/TLS Certificate Checker - verify certificate chain, expiry and protocol support
Email Deliverability - check SPF, DKIM and DMARC records
WHOIS Lookup - query domain registration details
Reverse DNS (PTR) - check IP to hostname resolution
Port Checker - test common HTTP/HTTPS ports
BIMI Lookup - query BIMI TXT records
Domain monitoring with automated scans
Multi-channel alerts via email, Slack, Telegram and webhooks
What makes it different
No data sent to external servers - credentials secured in Mac Keychain
Supports 14 different AI providers in one interface
See limits and history from the macOS menu bar
Simple setup in 3 seconds
41 tools all available free with unlimited checks
Clear sourcing - every result shows its source and what was not tested
Live DNS queries from edge servers via DNS-over-HTTPS
Domain monitoring and alerts with affordable Pro plan at $29/month
Code Meter
The Network Tools