diff --git a/htdocs/default.xsl b/htdocs/default.xsl
new file mode 100644
index 0000000..4f0bf15
--- /dev/null
+++ b/htdocs/default.xsl
@@ -0,0 +1,47 @@
+<?xml version="1.0"?>
+
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+	<xsl:template match="/clusters">
+		<html>
+			<head><title>Groups of potentially correlated alerts</title></head>
+			<body>
+				<h1>Alert clusters from the <i>SOM</i> neural network</h1>
+				<ul>
+					<xsl:apply-templates select="cluster">
+						<xsl:sort select="id"/>
+					</xsl:apply-templates>
+				</ul>
+			</body>
+		</html>
+	</xsl:template>
+
+	<xsl:template match="cluster">
+		<li>
+			<i><xsl:text>Alert cluster </xsl:text>
+			<xsl:value-of select="@id"/></i>
+		</li>
+
+		<ul>
+			<xsl:apply-templates select="alert">
+				<xsl:sort select="gid"/>
+			</xsl:apply-templates>
+		</ul><br/>
+	</xsl:template>
+
+	<xsl:template match="alert">
+		<li>
+			<b><xsl:value-of select="@desc"/></b>
+			<xsl:text>received at </xsl:text>
+			<u><xsl:value-of select="@timestamp"/></u>
+			<xsl:text>, </xsl:text>
+			<i><xsl:value-of select="@src_ip"/>
+			<xsl:text>:</xsl:text>
+			<xsl:value-of select="@src_port"/>
+			<xsl:text> -> </xsl:text>
+			<xsl:value-of select="@dst_ip"/>
+			<xsl:text>:</xsl:text>
+			<xsl:value-of select="@dst_port"/></i>
+		</li>
+	</xsl:template>
+</xsl:stylesheet>
+
