If you have already tried many web browsers, and none really convinces you because you are looking for one that is tremendously functional, that is, that only and exclusively load the websites that you indicate, then the answer is Rubi Explorer.
Because this Rubi Explorer is one of the most basic, austere, simple and simple web browsers you can find, that is, simplicity raised to maximum power, because it only allows you to load the web that you indicate. Of course, the load at high speed, which is its main virtue.
Rubi Explorer is also accompanied by a program that indicates if you have a good Internet connection at that time.
You can free download Rubi Explorer and safe install the latest trial or new full version for Windows 10 (x32, 64 bit, 86) from the official site.
Devices: Desktop PC, Laptop (ASUS, HP, DELL, Acer, Lenovo, MSI), Ultrabook
OS: Professional, Enterprise, Education, Home Edition, versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809