Network tools
Scanners and analysers that show what is on a network and what it is sending.
251 results, page 2 of 9
bmon
A terminal bandwidth monitor that shows live traffic rates for each network interface.
bore
Forward a local TCP port through a remote server.
BrowserLeaks
A suite of web tests that show what your browser reveals about you and your device.
BunkerWeb
An open-source web application firewall that runs as a reverse proxy in front of your web services.
CAA Test
A web tool that checks the DNS CAA records published for a domain.
Caddy
A web server that obtains and renews HTTPS certificates automatically, with a config file short enough to fit on a postcard.
Censys
An internet intelligence platform for searching hosts, services and TLS certificates across the internet.
Check Your Website
Free online checker for a domain's DNS, redirects, certificates, connections and mixed content.
Check-Host
Online tool that checks a host with ping, HTTP, TCP, UDP and DNS from servers worldwide.
Chisel
Fast TCP and UDP tunnel carried over HTTP and secured with SSH.
Cisco Packet Tracer
A free network simulation program for building and testing virtual network labs while learning networking.
Cisco Talos Reputation Center
Online lookup for Cisco Talos reputation and threat intelligence on IP addresses and domains.
Cloudflare DDNS
Keeps Cloudflare DNS records pointed at a changing home IP address.
Cloudflare Speed Test
A browser-based internet speed test that measures throughput, latency, jitter and packet loss.
Cloudflare Tunnel
Exposes a service on your machine to the internet through Cloudflare without opening a single port in your firewall.
Commix
Open-source tool that detects and exploits command injection vulnerabilities in web applications.
Containerlab
A command-line tool that builds and manages container-based network labs with virtual routers and switches.
CoreDNS
A DNS server written in Go that builds its behavior from a chain of plugins.
ctrld
A configurable, multi-protocol DNS forwarding proxy from Control D with policy-based upstream routing.
DD-WRT
Third-party open-source router firmware that adds VPN, QoS and advanced routing to consumer routers.
ddclient
Keep dynamic DNS records aligned with your changing IP address.
Dig Web Interface
Online front end to dig for querying DNS records against public resolvers or chosen nameservers.
DNS Leak Test
A web test that shows which DNS servers your connection is actually using.
DNSChecker
A web tool that checks DNS propagation by querying public resolvers in many countries.
dnsdist
A DNS load balancer that routes queries to backend servers and blocks abusive traffic with rules.
DNSDumpster
A web tool that discovers DNS records and hosts related to a domain for security research.
dnsproxy
A simple DNS proxy server supporting DNS-over-TLS, DNS-over-HTTPS, DNSCrypt and DNS-over-QUIC.
DNSRecon
A Python command-line script for DNS enumeration, record lookups, zone transfer checks and subdomain brute-forcing.
DNSSEC Debugger
A Verisign Labs web tool for diagnosing problems with DNSSEC-signed domain names and zones.
DNSsy
A free website that tests a domain's DNS health and offers live DNS, reverse, WHOIS and ping lookups.
