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+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
+ <meta name="apple-mobile-web-app-capable" content="yes">
+ <title>OpenLayers: Tiles from Multiple Servers</title>
+ <link rel="stylesheet" href="../theme/default/style.css" type="text/css">
+ <link rel="stylesheet" href="style.css" type="text/css">
+ <script src="../lib/OpenLayers.js"></script>
+ <script type="text/javascript">
+ var lon = 5;
+ var lat = 40;
+ var zoom = 5;
+ var map, layer;
+
+ function init(){
+ map = new OpenLayers.Map( 'map' );
+
+ var urlArray = ["http://tilecache.osgeo.org/wms-c/Basic.py",
+ "http://tilecache.osgeo.org/wms-c/Basic.py"];
+ layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
+ urlArray,
+ {layers: 'basic'} );
+ map.addLayer(layer);
+ map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
+ }
+ </script>
+ </head>
+ <body onload="init()">
+ <h1 id="title">Multiple Server URLS</h1>
+
+ <div id="tags">
+ performance, multiple urls, request, light
+ </div>
+ <p id="shortdesc">
+ Load your tiles faster by pointing to the same server, but with different urls
+ </p>
+
+ <div id="map" class="smallmap"></div>
+ <div id="docs">
+ <p>Browsers typically limit the number of concurrent requests to the same
+ server, based on hostname. In order to ake tiles load more quickly, it
+ often makes sense to distribute requests over multiple hostnames to achieve
+ more concurrency. Typically, browsers perform best with 3 different
+ hostnames -- your performance may vary. (For example, if your server can't
+ handle more than 2 requests simultaneously, then additional hostnames will
+ not help you.)</p>
+ </div>
+
+ </body>
+</html>