Dedicated tools like ZoomText, along with built-in options like Windows Magnifier and macOS Zoom, let users enlarge content anywhere from 200% up to 20 times its normal size, frequently paired with cursor enhancements and color or contrast adjustments that make the magnified view easier to track.
Because magnifier users only see a portion of the screen at any moment, predictable layouts, a logical reading order, and visible, easy-to-locate focus indicators matter enormously; content that jumps around unexpectedly is especially disorienting for someone viewing the page at high zoom.