Technical Notes


Copies of the Web pages you visit are stored in a cache. This is usually a temporary folder on your computer. However, your dialup service provider or company network may use a cache to store pages you visit.

The goal of a cache is to speed up Web browsing. If you visit the same page twice, your cache may supply the page instead of the Web server -- since the page doesn't have to travel across a network, it should load faster.

If you load a page from your cache, but the page has been changed on the server in the meantime, you might not see the latest version.

Browser Incompatibilities

Different makers and versions of Web browsers support different features. For that reason, there may be differences in the way a page of information is displayed. Typically, those differences are slight, such as larger or smaller text or different-sized margins.

While City content managers are encouraged to test their pages in as many different browsers as possible, those browser differences may lead to mistaken interpretations of the content.


A proxy is a server that collects requests from your browser and filters them before sending them to the Internet. Proxy servers can:

Most companies that allow their employees to browse the Internet and several large dialup providers do so through a proxy.

Last updated Oct 9, 2018



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