Investing Internet Technology Windows Internet Tech. Find a Web Host Network Mapping at a Glance, Part 3 Doing it visually with your own Perl script.
Many browsers cache images in order to optimize performance.
There's no straightforward way to defeat this mechanism for dynamically changing images, such as our network map. As a result, our WebView application will now contain two separate scripts. The HTML for the main page can be generated by the following webview.cgi script. Figure 2 shows how our Web page containing the network map might appear to the user. Netimage.cgi is the script that actually checks each node and displays the network map.