1440p is higher resolution than 1080p, so there will be more dots on the screen which in turn makes everything appear to be smaller for the same size monitor (24", 27", whatever). Windows scaling (described in the post above) is the way to adjust how Windows presents all fonts and icons.
The Web server can't adjust that for you. But Chrome will remember a zoom setting for specific Web sites, so if you're using Chrome then just increase the zoom level right now (Ctrl-Mouse Wheel, or thee dot menu > Zoom) and it should stick.