NetSpot also works as an amazing tool to plan your Wi-Fi.
It provides visual Wi-Fi map where you can see all dead zones without Wi-Fi coverage. NetSpot allows you to visualize, manage and plan your wireless network. You can use the free version to test and improve Wi-Fi.
No matter you want to improve home Wi-Fi or office Wi-Fi, you can use the professional NetSpot to analyze and troubleshoot Wi-Fi issues. NetSpot – Free WiFi Analyzer for Home/Office WiFi
With this Wi-Fi scanning tool, you can see overlapping and over bearing signal conflicts that may affect network performance. Similar to WiFi Explorer, WiFi Scanner provides simple and fast wireless network discovery of 802.11a/b/g/n/ac access points. WiFi Scanner - View and Visualize Your Networks
WiFi Explorer - Scan, Monitor and Troubleshoot WiFi Mac Cleaner - Test Your WiFi with Best Mac Assistant KisMAC - Free & Open-Source WiFi Scanner for Mac However, we are going to share you 5 best Wi-Fi analyzer tools for macOS Big Sur, Catalina, macOS Mojave, macOS High Sierra, macOS El Capitan, etc. Perhaps, you should use a professional Wi-Fi analyzer tool to check and improve your Wi-Fi.
How to know Wi-Fi status when downloading an item from website? MacOS provides a built-in Wi-Fi scanner in Wireless Diagnostics, where you can find busy channels and bandwidth frequencies for your own Wi-Fi.