There are many computer Braille fonts on the internet. Users can choose a favorite font and install it on their computer. We developed another Braille font, SixBraille, in 2018 with modern technology. Once users install the Braille font into their computer, they can display and print Braille text on their computer. On the other hand, Braille text on the web page has yet to be considered. If there are no Braille fonts on their computer, users can not display the web pages which use Braille fonts correctly. Modern web browsers have a 'web font' system to render the text with the correct fonts placed on remote servers. This system downloads an HTML source and highly compressed font data sets and uses them to render the text. In this paper, we implement a web font extension into SixBraille Braille font and evaluate how it works on systems without any Braille fonts.