diff --git a/log4j.properties b/log4j.properties
index ea18fcd..c2869e5 100644
--- a/log4j.properties
+++ b/log4j.properties
@@ -3,8 +3,8 @@
 
 # priority setting: DEBUG < INFO < WARN < ERROR
 log4j.rootLogger                = DEBUG, console
-
-log4j.logger.fr.devinsy.xidyn   = INFO
+log4j.logger.org.april.agirstatool    = INFO
+log4j.logger.fr.devinsy.xidyn   = WARN
 
 #--
 log4j.appender.console                           = org.apache.log4j.ConsoleAppender
diff --git a/src/org/april/agirstatool/core/AgirStatool.java b/src/org/april/agirstatool/core/AgirStatool.java
index e934b7d..6d924e9 100644
--- a/src/org/april/agirstatool/core/AgirStatool.java
+++ b/src/org/april/agirstatool/core/AgirStatool.java
@@ -25,6 +25,8 @@ import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
 
 import org.apache.commons.io.FileUtils;
 import org.april.agirstatool.charts.DateCount;
@@ -473,6 +475,54 @@ public class AgirStatool
 		return result;
 	}
 
+	/**
+	 * Checks for to refresh.
+	 *
+	 * @param project
+	 *            the project
+	 * @return true, if successful
+	 */
+	public boolean hasToRefresh(final Project project)
+	{
+		boolean result;
+
+		if (project == null)
+		{
+			result = false;
+		}
+		else
+		{
+			File target = new File(this.targetDirectory, project.getPath());
+			if (target.exists())
+			{
+				if (project.hasIssue())
+				{
+					LocalDateTime lastFileUpdate = LocalDateTime.ofEpochSecond(target.lastModified() / 1000, 0, ZoneOffset.UTC);
+
+					if (project.issueStats().getLastUpdate().isAfter(lastFileUpdate))
+					{
+						result = true;
+					}
+					else
+					{
+						result = false;
+					}
+				}
+				else
+				{
+					result = false;
+				}
+			}
+			else
+			{
+				result = true;
+			}
+		}
+
+		//
+		return result;
+	}
+
 	/**
 	 * List projects.
 	 *
@@ -590,7 +640,7 @@ public class AgirStatool
 		}
 		for (Project project : projects)
 		{
-			logger.info("Fetching Created/Closed history for " + project.getName());
+			logger.debug("Fetching Created/Closed history for " + project.getName());
 			if (project.hasIssue())
 			{
 				{
@@ -605,7 +655,7 @@ public class AgirStatool
 				}
 			}
 		}
-		logger.info("Fetching Created/Closed history done.");
+		logger.debug("Fetching Created/Closed history done.");
 
 		// Transform as tree.
 		for (Project project : projects)
@@ -831,8 +881,9 @@ public class AgirStatool
 	{
 		try
 		{
-			if (project != null)
+			if (hasToRefresh(project))
 			{
+				logger.info("Refresh project page for {}", project.getName());
 				String page = ProjectPage.build(project);
 				FileUtils.write(new File(this.targetDirectory, project.getIdentifier() + ".xhtml"), page, StandardCharsets.UTF_8);
 			}
diff --git a/src/org/april/agirstatool/core/pages/ChartBarView.java b/src/org/april/agirstatool/core/pages/ChartBarView.java
index 318c73d..b873c98 100644
--- a/src/org/april/agirstatool/core/pages/ChartBarView.java
+++ b/src/org/april/agirstatool/core/pages/ChartBarView.java
@@ -52,8 +52,6 @@ public class ChartBarView
 
 		try
 		{
-			logger.info("Building chartBar view…");
-
 			String source = XidynUtils.load(AgirStatool.class.getResource("/org/april/agirstatool/core/pages/chartBarView.xhtml"));
 			String code = XidynUtils.extractBodyContent(source);
 
diff --git a/src/org/april/agirstatool/core/pages/ChartPolarView.java b/src/org/april/agirstatool/core/pages/ChartPolarView.java
index 11bb089..aea5778 100644
--- a/src/org/april/agirstatool/core/pages/ChartPolarView.java
+++ b/src/org/april/agirstatool/core/pages/ChartPolarView.java
@@ -52,8 +52,6 @@ public class ChartPolarView
 
 		try
 		{
-			logger.info("Building polar chart view…");
-
 			String source = XidynUtils.load(AgirStatool.class.getResource("/org/april/agirstatool/core/pages/chartPolarView.xhtml"));
 			String code = XidynUtils.extractBodyContent(source);
 
diff --git a/src/org/april/agirstatool/core/pages/CreatedConcludedCountChartView.java b/src/org/april/agirstatool/core/pages/CreatedConcludedCountChartView.java
index 76a4791..cf5ff8a 100644
--- a/src/org/april/agirstatool/core/pages/CreatedConcludedCountChartView.java
+++ b/src/org/april/agirstatool/core/pages/CreatedConcludedCountChartView.java
@@ -62,8 +62,6 @@ public class CreatedConcludedCountChartView
 
 		try
 		{
-			logger.info("Building created/closed x months chart view…");
-
 			if (project.hasIssue())
 			{
 				String source = XidynUtils.load(AgirStatool.class.getResource("/org/april/agirstatool/core/pages/chartLineView.xhtml"));
@@ -113,7 +111,7 @@ public class CreatedConcludedCountChartView
 
 		try
 		{
-			logger.info("Building created/concluded chart view…");
+			logger.debug("Building created/concluded chart view…");
 
 			if (project.hasIssue())
 			{
@@ -162,8 +160,6 @@ public class CreatedConcludedCountChartView
 	{
 		String result;
 
-		logger.info("Building created/closed x months chart view…");
-
 		result = build(title, project, LocalDate.now().minusMonths(monthCount), LocalDate.now());
 
 		//
@@ -180,8 +176,6 @@ public class CreatedConcludedCountChartView
 	{
 		String result;
 
-		logger.info("Building created/closed x months chart view…");
-
 		result = buildYear(title, project, LocalDate.now().getYear() - 1);
 
 		//
@@ -253,8 +247,6 @@ public class CreatedConcludedCountChartView
 	{
 		String result;
 
-		logger.info("Building created/closed x months chart view…");
-
 		LocalDate start = LocalDate.of(year, 1, 1).minusDays(7);
 		LocalDate end = LocalDate.of(year + 1, 1, 1).minusDays(1);
 
diff --git a/src/org/april/agirstatool/core/pages/IssueStatChartView.java b/src/org/april/agirstatool/core/pages/IssueStatChartView.java
index c6eb59b..e1d311c 100644
--- a/src/org/april/agirstatool/core/pages/IssueStatChartView.java
+++ b/src/org/april/agirstatool/core/pages/IssueStatChartView.java
@@ -45,8 +45,6 @@ public class IssueStatChartView
 	{
 		String result;
 
-		logger.info("Building issue stat chart view…");
-
 		StringList labels = new StringList("Maybe", "New", "Confirmed", "Ongoing", "Waiting", "Resolved");
 		StringList values = new StringList();
 		values.append(project.issueStats().getMaybeCount());
@@ -76,8 +74,6 @@ public class IssueStatChartView
 	{
 		String result;
 
-		logger.info("Building issue stat chart view…");
-
 		StringList labels = new StringList("Maybe", "Active", "Resolved");
 		StringList values = new StringList();
 		values.append(project.issueStats().getMaybeCount());
diff --git a/src/org/april/agirstatool/core/pages/ProjectPage.java b/src/org/april/agirstatool/core/pages/ProjectPage.java
index 811af99..2fe1418 100644
--- a/src/org/april/agirstatool/core/pages/ProjectPage.java
+++ b/src/org/april/agirstatool/core/pages/ProjectPage.java
@@ -51,7 +51,7 @@ public class ProjectPage
 
 		try
 		{
-			logger.info("Building project page " + project.getName() + "…");
+			logger.debug("Building project page {}…", project.getName());
 
 			TagDataManager data = new TagDataManager();
 
diff --git a/src/org/april/agirstatool/core/pages/ProjectsGroupedView.java b/src/org/april/agirstatool/core/pages/ProjectsGroupedView.java
index 1df7cd3..f04265c 100644
--- a/src/org/april/agirstatool/core/pages/ProjectsGroupedView.java
+++ b/src/org/april/agirstatool/core/pages/ProjectsGroupedView.java
@@ -54,7 +54,7 @@ public class ProjectsGroupedView
 
 		try
 		{
-			logger.info("Building ProjectsGrouped view…");
+			logger.debug("Building ProjectsGrouped view…");
 
 			TagDataManager data = new TagDataManager();
 
diff --git a/src/org/april/agirstatool/core/pages/ProjectsRawView.java b/src/org/april/agirstatool/core/pages/ProjectsRawView.java
index 8f79d5b..499733b 100644
--- a/src/org/april/agirstatool/core/pages/ProjectsRawView.java
+++ b/src/org/april/agirstatool/core/pages/ProjectsRawView.java
@@ -52,7 +52,7 @@ public class ProjectsRawView
 
 		try
 		{
-			logger.info("Building ProjectsRaw view…");
+			logger.debug("Building ProjectsRaw view…");
 
 			TagDataManager data = new TagDataManager();
 
diff --git a/src/org/april/agirstatool/core/pages/UnassignedPolarChartView.java b/src/org/april/agirstatool/core/pages/UnassignedPolarChartView.java
index a8815f2..41bf0ee 100644
--- a/src/org/april/agirstatool/core/pages/UnassignedPolarChartView.java
+++ b/src/org/april/agirstatool/core/pages/UnassignedPolarChartView.java
@@ -46,8 +46,6 @@ public class UnassignedPolarChartView
 	{
 		String result;
 
-		logger.info("Building issue stat chart view…");
-
 		StringList labels = new StringList("Confirmed", "Ongoing", "Waiting", "Resolved", "Rejected", "Closed");
 		StringList values = new StringList();
 		IssueStats stats = project.issueStats();
@@ -78,8 +76,6 @@ public class UnassignedPolarChartView
 	{
 		String result;
 
-		logger.info("Building issue stat chart view…");
-
 		StringList labels = new StringList("Started", "Resolved", "Concluded");
 		StringList values = new StringList();
 		IssueStats stats = project.issueStats();