Wingdings (win 3.1) and later Webdings (Win95 && win98) were windows-fonts for printers and desktops and you can write with this fonts and the keyboard like other PC-Fonts (Arial etc).
Wingdings or Webdings are working only with Windows and it was not possible to use it in UTF8 as fonts, but in the "good old time" we use it on pictures (for buttons etc) as background picture
30 years after Windows 3.1 we've now a better version -> Icon Fonts. All this icons using the unicode-"number" in the font-file, for example, this here \000A9 is the sign for a copyright-symbol. For a better handling and a identical style in color, size, transparence etc, there work with css and aliases instead of the unicode, in the system "BoxIcons" it is
bxs-copyright für the copyright-icon. Other systems like fontawesome using a database with all the 26.000 icons on a extern server (works like google-fonts)
there are a lot of systems with iconfonts on the way, here a links with "
the best" of them. I have to say, i know only Fontawesome

If you want to now, what kind of fonticons are in use on a page, take a look into the source-code, you find a code like this for a icon
<i bx bx-file></i>
Then search for some parts of this code in the web, for example: searching for
bx bx-file. Now you've the system and you can search there for some help or examples to use the icons in your project