Network Tools

Combine network benchmarks into repeatable experiments

Graph top bandwidth users from sFlow

Search MAC prefixes and download vendor data

Diagnose IPv4, IPv6 and dual-stack browser reachability

Automate TLS configuration checks across services

Compare mobile connection tests and coverage maps

Inspect TCP and UDP connections from a terminal

View DNS answers on a global resolver map

Look up the vendor assigned to a MAC prefix

Inspect email transport and authentication setup

Check which resolvers answer browser DNS tests

Query large archives of network flow data

Generate and analyze network flow observations

Map IP addresses to BGP origins and prefixes

Review a sample email's authentication and spam signals

Browser bandwidth tests with a self-hosting option

Benchmark throughput between controlled endpoints

Inspect DNS records with selectable resolver viewpoints

Use classic network lookups in a browser

Look up network registrations and routing policies

Check a domain through the DNS delegation tree

Check TLS protocols and ciphers from the command line

Netflix's browser speed test with loaded-latency details

Discover domain-related hosts and DNS infrastructure