Internet Toolbox by Gentlent

Diagnose domains and IPs with DNS, WHOIS, global ping, and ASN insights.

Internet Toolbox helps you investigate network and routing issues from your phone in seconds.

Enter any domain, IPv4, or IPv6 address to instantly run lookups and view actionable details in one place.

Key features:

• DNS lookups across common record types: A, AAAA, CAA, DS, DNSKEY, MX, NS, PTR, SOA, SRV, and TXT.
• WHOIS lookup with readable raw output for domains and hosts.
• Global ping measurements with min/max/avg latency and packet loss from multiple probes.
• IP intelligence including ASN, AS name, country, and subnet details.
• Subdomain awareness using public suffix parsing to identify parent domains.
• Built-in device/network info page with local IP, public IPv4, public IPv6, and carrier (when available).
• One-tap links to external network tools such as BGP.Tools, PeeringDB, RIPE DB, and IRR Explorer.

Built for developers, network engineers, support teams, and anyone who needs quick visibility into internet connectivity and routing.