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graph from public webdot server

Notice: Although webdot can be configured as a public server, we don't particularly recommend it. Webdot contains insufficient mechanisms for limiting the load on a public server. Instead we recommend that you set up a webdot server just for your own graphs in LOCALHOSTONLY mode: i.e. where the source graph is always on the same host as the webdot server.

If a public WebDot server is available then graphs can be served without installing WebDot locally. For example, if there is a graph at: http://www.graphviz.org/demo.dot

then this img tag in an html web page:
<img src="http://api.graphviz.org/cgi-bin/webdot/http://www.graphviz.org/demo.dot.dot.png"
    alt="graph from public webdot server">

will produce the graph layout at the top of this page.