Most webpages today have standard text sizes because the web browsers themselves (Firefox,Chrome,Internet Explorer) have the ability to resize the text of any webpage. If you have a problem reading most webpages due to small text there are simple commands that you can use to magnify the text on screen. Each web browser has a different command, all of which can be found on their help websites:

Firefox: https://support.mozilla.org/en-US/kb/accessibility-features-firefox-make-firefox-and-we?redirectlocale=en-US&redirectslug=Accessibility

Internet Explorer: http://windows.microsoft.com/en-us/windows/internet-explorer-accessibility-options#1TC=windows-7

Chrome: https://sites.google.com/a/chromium.org/dev/user-experience/low-vision-support