Port Checker

Check if common ports are open on a host. Due to browser limitations, this works best with HTTP/HTTPS ports.

Note: Browser security restrictions prevent direct TCP port scanning. For accurate results, use command-line tools like nmap or online port scanning services.
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Network Tools
WHOIS Lookup

Domain registration info
Network Tools
DNS Lookup

Look up DNS records
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SSL Checker

Check SSL certificates
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Subnet Calculator

Calculate subnets
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Convert MP4, WebM, AVI, MOV
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Convert YAML to JSON and vice versa