Unbound is a command-line utility that allows you to validate and resolve DNS caches, effectively permitting you to block malicious websites and more.
Over time your DNS resolver cache stores numerous instances of website domain visits. This cache can become corrupted for many reasons; this utility will help you flush the cache in an attempt to correct bad destination redirects that can lead to trackers, ads, or worse.
Unbound is designed as a set of modular components incorporating a host of modern features like enhanced security (DNSSEC) validation, Internet Protocol Version 6 (IPv6), and a client resolver API library as an integral part of the architecture.
Complete Internet Repair does exactly what it says. It attempts to repair everything internet-related, including networking problems. Video tutorial and a portable version are also available.
With inSSIDer, you can inspect your Wi-Fi and surrounding networks, scan and filter hundreds of nearby access points, troubleshot the competing access points and clogged Wi-Fi channels, and more.
Simple Port Tester is a free program by PcWinTech.com to help users test if their ports are open with just a few clicks. Now supports 52 Languages. Portable version also available.