MX Toolbox - A web-based diagnostic toolkit for email and DNS that lets you look up MX records, check if your domain or IP is on blacklists, and quickly troubleshoot common email delivery and configuration issues.

Google Dig - A web-based DNS lookup tool from Google that lets you query records like A, AAAA, MX, TXT, and more to quickly inspect how a domain resolves and troubleshoot DNS configuration issues.

Net Analyzer for iOS - A network diagnostics app for iPhone and iPad that provides tools like ping, traceroute, port scan, and Wi‑Fi/LAN discovery so you can quickly inspect connectivity, map devices on your network, and troubleshoot common network issues.

IT-Tools - A browser-based collection of dozens of handy utilities for developers and sysadmins, including encoders/decoders, format converters, network and DNS tools, generators, and data inspectors, all in a single web app.

Wireshark - A powerful open-source network protocol analyzer that lets you capture and inspect packet-level traffic in real time to debug, secure, and understand your networks.

Zabbix - An open-source monitoring platform for networks, servers, containers, and applications that provides flexible data collection, alerting, and visualization for infrastructure health.

Grafana - An open-source analytics and visualization platform that turns metrics and logs from many data sources into rich, interactive dashboards and alerts.

Ubuntu - A user-friendly, Debian-based Linux distribution that balances stability and up-to-date packages, making it a solid choice for both desktop use and server deployments.

Crontab Generator - A simple web tool that helps you build valid crontab expressions and preview run times so you can safely schedule automated jobs without memorizing cron syntax.

ASNLookup - A web-based lookup tool that lets you search Autonomous System Numbers, IP prefixes, and related routing information to understand who owns and announces specific network ranges.

Ninite - A Windows installer service that lets you build a single, automated installer for multiple apps, handling silent installs and updates without bundled junkware.

DeepWiki - An AI-powered documentation tool that ingests GitHub repositories and lets you interactively query up-to-date docs, code context, and related resources in a conversational interface.

Klein Scout Pro 3 Tester Kit - A versatile cable tester kit that measures cable length, maps and identifies multiple voice, data, and coax runs, and checks for opens, shorts, miswires, and split pairs with a backlit LCD and included remotes.

Ubiquiti networking gear - Enterprise-style routers, switches, and Wi‑Fi access points that offer centralized management, strong wireless coverage, and advanced features at relatively accessible prices.

PeeringDB - A community-maintained, public database of networks, IXPs, facilities, and carriers used by network operators to research interconnection options and plan peering.

Patchapalooza - A centralized reference site that tracks software and OS patches, releases, and advisories to help admins stay aware of important updates.