diff --git a/.gitignore b/.gitignore
index 8b72e38..54562f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,4 +7,6 @@ runtime/
 
 **/.idea/dataSources*
 
-config.php
\ No newline at end of file
+config.php
+
+www/dtest.php
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index e3c2bd0..f5f15f4 100644
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -6,6 +6,8 @@
         <language minSize="100" name="PHP" />
       </Languages>
     </inspection_tool>
+    <inspection_tool class="HtmlUnknownTarget" enabled="true" level="INFORMATION" enabled_by_default="true" />
+    <inspection_tool class="PhpUnhandledExceptionInspection" enabled="true" level="INFORMATION" enabled_by_default="true" />
     <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
       <option name="processCode" value="true" />
       <option name="processLiterals" value="true" />
diff --git a/www/commands/site_selftest.php b/www/commands/site_selftest.php
new file mode 100644
index 0000000..27c38da
--- /dev/null
+++ b/www/commands/site_selftest.php
@@ -0,0 +1,14 @@
+<?php
+require_once (__DIR__ . '/../internals/website.php');
+
+/** @var PageFrameOptions $FRAME_OPTIONS */ global $FRAME_OPTIONS;
+/** @var URLRoute $ROUTE */ global $ROUTE;
+/** @var Website $SITE */ global $SITE;
+
+
+if (!isset($API_OPTIONS['filter'])) { $FRAME_OPTIONS->forceResult(400, "Wrong parameters."); return; }
+
+
+$json = $SITE->modules->SelfTest()->run($API_OPTIONS['filter']);
+
+echo json_encode($json);
\ No newline at end of file
diff --git a/www/data/css/styles.css b/www/data/css/styles.css
index 144d2d7..0ac3e26 100644
--- a/www/data/css/styles.css
+++ b/www/data/css/styles.css
@@ -782,12 +782,6 @@ html, body {
   text-align: left;
 }
 
-.boxedcontent.alertbox {
-  background-color: #F52;
-  font-weight: bold;
-  text-align: center;
-}
-
 .egg_col_x5_0 {
   fill: #eeeeee;
 }
@@ -858,7 +852,7 @@ html, body {
   min-width: 300px;
 }
 
-.consistency_result_ok, .consistency_result_warn, .consistency_result_err {
+.consistency_result_ok, .consistency_result_warn, .consistency_result_err, .consistency_result_intermed, .consistency_result_running {
   min-width: 400px;
   color: #222222;
   border: 1px solid #888;
@@ -878,6 +872,15 @@ html, body {
   background: #FF0000;
 }
 
+.consistency_result_intermed {
+  background: #EEEEEE;
+}
+
+.consistency_result_running {
+  background: #DDDDDD;
+  border: 1px solid #000;
+}
+
 .admincontent .boxedcontent hr {
   width: 95%;
   height: 1px;
@@ -891,6 +894,54 @@ html, body {
   color: #BB2222;
 }
 
+.boxedcontent.alertbox {
+  background-color: #FF4444;
+  color: #222222;
+  border: 1px solid #AA4444;
+  font-weight: bold;
+  text-align: center;
+}
+.boxedcontent.alertbox .bc_data {
+  padding-top: 2px;
+  padding-bottom: 2px;
+}
+
+.boxedcontent.warnbox {
+  background-color: #FFA726;
+  color: #333333;
+  border: 1px solid #444444;
+  font-weight: bold;
+  text-align: center;
+}
+.boxedcontent.warnbox .bc_data {
+  padding-top: 2px;
+  padding-bottom: 2px;
+}
+
+.boxedcontent.graybox {
+  background-color: #888888;
+  color: #222222;
+  border: 1px solid #444444;
+  font-weight: bold;
+  text-align: center;
+}
+.boxedcontent.graybox .bc_data {
+  padding-top: 2px;
+  padding-bottom: 2px;
+}
+
+.boxedcontent.successbox {
+  background-color: #168B00;
+  color: #222222;
+  border: 1px solid #444444;
+  font-weight: bold;
+  text-align: center;
+}
+.boxedcontent.successbox .bc_data {
+  padding-top: 2px;
+  padding-bottom: 2px;
+}
+
 /* 400px */
 #loginform div {
   display: flex;
diff --git a/www/data/css/styles.min.css b/www/data/css/styles.min.css
index ebb23e3..622d24c 100644
--- a/www/data/css/styles.min.css
+++ b/www/data/css/styles.min.css
@@ -152,7 +152,6 @@ html,body{margin:0;padding:0;height:100%}
 .about_circles{display:flex;flex-direction:column}
 .about_circles a{margin:5px 0}
 .about_circles .iconbutton_light span{text-align:left}
-.boxedcontent.alertbox{background-color:#F52;font-weight:bold;text-align:center}
 .egg_col_x5_0{fill:#eee}
 .egg_col_x5_1{fill:#6bcdff}
 .egg_col_x5_2{fill:#00a1f3}
@@ -168,12 +167,22 @@ html,body{margin:0;padding:0;height:100%}
 .kvl_100 div span:first-child{min-width:100px}
 .kvl_200 div span:first-child{min-width:200px}
 .kvl_300 div span:first-child{min-width:300px}
-.consistency_result_ok,.consistency_result_warn,.consistency_result_err{min-width:400px;color:#222;border:1px solid #888;padding:0 5px;margin:1px 0}
+.consistency_result_ok,.consistency_result_warn,.consistency_result_err,.consistency_result_intermed,.consistency_result_running{min-width:400px;color:#222;border:1px solid #888;padding:0 5px;margin:1px 0}
 .consistency_result_ok{background:#0f0}
 .consistency_result_warn{background:#ff0}
 .consistency_result_err{background:red}
+.consistency_result_intermed{background:#eee}
+.consistency_result_running{background:#ddd;border:1px solid #000}
 .admincontent .boxedcontent hr{width:95%;height:1px;border:0;color:#FFFFFF00;background:-moz-radial-gradient(circle,rgba(0,0,0,0.1),rgba(0,0,0,0));background:-webkit-radial-gradient(circle,rgba(0,0,0,0.1) 0,rgba(0,0,0,0) 100%)}
 .admindberr{color:#b22}
+.boxedcontent.alertbox{background-color:#f44;color:#222;border:1px solid #a44;font-weight:bold;text-align:center}
+.boxedcontent.alertbox .bc_data{padding-top:2px;padding-bottom:2px}
+.boxedcontent.warnbox{background-color:#ffa726;color:#333;border:1px solid #444;font-weight:bold;text-align:center}
+.boxedcontent.warnbox .bc_data{padding-top:2px;padding-bottom:2px}
+.boxedcontent.graybox{background-color:#888;color:#222;border:1px solid #444;font-weight:bold;text-align:center}
+.boxedcontent.graybox .bc_data{padding-top:2px;padding-bottom:2px}
+.boxedcontent.successbox{background-color:#168b00;color:#222;border:1px solid #444;font-weight:bold;text-align:center}
+.boxedcontent.successbox .bc_data{padding-top:2px;padding-bottom:2px}
 #loginform div{display:flex;flex-direction:column}
 #loginform div button{margin:10px 0;padding:0}
 .loginerror{display:flex;background:#f44;color:#222;border:1px solid #a44;border-radius:2px;font-weight:bold;padding:0 5px;margin:5px 0 20px 0}
diff --git a/www/data/css/styles_about.scss b/www/data/css/styles_about.scss
index 24a1bdb..6c6acbc 100644
--- a/www/data/css/styles_about.scss
+++ b/www/data/css/styles_about.scss
@@ -112,12 +112,6 @@
 
 }
 
-.boxedcontent.alertbox {
-  background-color: #F52;
-  font-weight: bold;
-  text-align: center;
-}
-
 @if $CFG_EGG_THEME == 'standard'
 {
   // ==== STANDARD ====
diff --git a/www/data/css/styles_admin.scss b/www/data/css/styles_admin.scss
index b8bce2f..f02bf4f 100644
--- a/www/data/css/styles_admin.scss
+++ b/www/data/css/styles_admin.scss
@@ -41,7 +41,7 @@
 .kvl_200 div span:first-child { min-width: 200px; }
 .kvl_300 div span:first-child { min-width: 300px; }
 
-.consistency_result_ok, .consistency_result_warn, .consistency_result_err {
+.consistency_result_ok, .consistency_result_warn, .consistency_result_err, .consistency_result_intermed, .consistency_result_running {
   min-width: 400px;
   color: $COL_ADMIN_STATUS_FG;
   border: $COL_ADMIN_STATUS_BORDER;
@@ -49,9 +49,11 @@
   margin: 1px 0;
 }
 
-.consistency_result_ok   { background: $COL_ADMIN_OK; }
-.consistency_result_warn { background: $COL_ADMIN_WARN; }
-.consistency_result_err  { background: $COL_ADMIN_ERROR; }
+.consistency_result_ok       { background: $COL_ADMIN_OK; }
+.consistency_result_warn     { background: $COL_ADMIN_WARN; }
+.consistency_result_err      { background: $COL_ADMIN_ERROR; }
+.consistency_result_intermed { background: $COL_ADMIN_INTERMED; }
+.consistency_result_running  { background: $COL_ADMIN_RUNNING; border: $COL_ADMIN_STATUS_BORDER_ACTIVE; }
 
 
 .admincontent .boxedcontent hr {
@@ -63,4 +65,52 @@
   background: -webkit-radial-gradient(circle, rgba(0, 0, 0, 0.1) 0%,rgba(0, 0, 0, 0.0) 100%);
 }
 
-.admindberr { color: $COL_ADMIN_STATUS_DB_ERROR; }
\ No newline at end of file
+.admindberr { color: $COL_ADMIN_STATUS_DB_ERROR; }
+
+.boxedcontent.alertbox {
+  background-color: $COL_TOAST_ERROR_BG;
+  color:            $COL_TOAST_ERROR_FG;
+  border:           $COL_TOAST_ERROR_BORDER;
+  font-weight: bold;
+  text-align: center;
+  .bc_data {
+    padding-top: 2px;
+    padding-bottom: 2px;
+  }
+}
+
+.boxedcontent.warnbox {
+  background-color: $COL_TOAST_WARN_BG;
+  color:            $COL_TOAST_WARN_FG;
+  border:           $COL_TOAST_WARN_BORDER;
+  font-weight: bold;
+  text-align: center;
+  .bc_data {
+    padding-top: 2px;
+    padding-bottom: 2px;
+  }
+}
+
+.boxedcontent.graybox {
+  background-color: $COL_TOAST_GRAY_BG;
+  color:            $COL_TOAST_GRAY_FG;
+  border:           $COL_TOAST_GRAY_BORDER;
+  font-weight: bold;
+  text-align: center;
+  .bc_data {
+    padding-top: 2px;
+    padding-bottom: 2px;
+  }
+}
+
+.boxedcontent.successbox {
+  background-color: $COL_TOAST_SUCCESS_BG;
+  color:            $COL_TOAST_SUCCESS_FG;
+  border:           $COL_TOAST_SUCCESS_BORDER;
+  font-weight: bold;
+  text-align: center;
+  .bc_data {
+    padding-top: 2px;
+    padding-bottom: 2px;
+  }
+}
diff --git a/www/data/css/styles_config.scss b/www/data/css/styles_config.scss
index bd47959..8276b5e 100644
--- a/www/data/css/styles_config.scss
+++ b/www/data/css/styles_config.scss
@@ -115,9 +115,21 @@ $COL_FOOTER_FG:           #CCCCCC;
 
 // ------------------------------------
 
-$COL_TOAST_ERROR_FG:     #222222;
-$COL_TOAST_ERROR_BG:     #FF4444;
-$COL_TOAST_ERROR_BORDER: 1px solid #AA4444;
+$COL_TOAST_ERROR_FG:       #222222;
+$COL_TOAST_ERROR_BG:       #FF4444;
+$COL_TOAST_ERROR_BORDER:   1px solid #AA4444;
+
+$COL_TOAST_WARN_FG:        #333333;
+$COL_TOAST_WARN_BG:        #FFA726;
+$COL_TOAST_WARN_BORDER:    $LAYER1_BORDER;
+
+$COL_TOAST_GRAY_FG:        #222222;
+$COL_TOAST_GRAY_BG:        #888888;
+$COL_TOAST_GRAY_BORDER:    $LAYER1_BORDER;
+
+$COL_TOAST_SUCCESS_FG:     #222222;
+$COL_TOAST_SUCCESS_BG:     #168B00;
+$COL_TOAST_SUCCESS_BORDER: $LAYER1_BORDER;
 
 // ------------------------------------
 
@@ -149,12 +161,15 @@ $AOC_DESCRIPTION_BG: #333333;
 
 // ------------------------------------
 
-$COL_ADMIN_OK:    #00FF00;
-$COL_ADMIN_WARN:  #FFFF00;
-$COL_ADMIN_ERROR: #FF0000;
+$COL_ADMIN_OK:       #00FF00;
+$COL_ADMIN_WARN:     #FFFF00;
+$COL_ADMIN_ERROR:    #FF0000;
+$COL_ADMIN_INTERMED: #EEEEEE;
+$COL_ADMIN_RUNNING:  #DDDDDD;
 
 $COL_ADMIN_STATUS_FG:     #222222;
 $COL_ADMIN_STATUS_BORDER: 1px solid #888;
+$COL_ADMIN_STATUS_BORDER_ACTIVE: 1px solid #000;
 
 $COL_ADMIN_STATUS_DB_ERROR:     #BB2222;
 
diff --git a/www/data/javascript/admin.js b/www/data/javascript/admin.js
index 0a54c76..b4ab0e4 100644
--- a/www/data/javascript/admin.js
+++ b/www/data/javascript/admin.js
@@ -69,4 +69,60 @@ function startAjaxReplace(target, url)
         },
         async:   true
     });
-}
\ No newline at end of file
+}
+
+function refreshConsistencyDisplay(skip)
+{
+    let i = 0;
+    for (let apibutton of $('.consistence_ajax_handler').toArray())
+    {
+        if (i++ !== skip) continue;
+
+        const filter = $(apibutton).data('filter');
+
+        $(apibutton).removeClass('consistency_result_intermed');
+        $(apibutton).addClass('consistency_result_running');
+
+        $.ajax('/api/site::selftest?filter=' + filter)
+            .done((data, status, xhr) =>
+            {
+                let json = JSON.parse(data);
+                $(apibutton).removeClass('consistency_result_intermed');
+                $(apibutton).removeClass('consistency_result_running');
+
+                if (json.result === 0)
+                {
+                    $(apibutton).addClass('consistency_result_ok');
+                    $(apibutton).text(json.message+" ");
+                }
+                else if (json.result === 1)
+                {
+                    $(apibutton).addClass('consistency_result_warn');
+                    $(apibutton).text(json.message+" ");
+                }
+                else if (json.result === 2)
+                {
+                    $(apibutton).addClass('consistency_result_err');
+                    $(apibutton).text(json.message+" ");
+                }
+
+                setTimeout(() => refreshConsistencyDisplay(skip+1), 300);
+            })
+            .fail((xhr, status, err) =>
+            {
+                $(apibutton).removeClass('consistency_result_intermed');
+                $(apibutton).removeClass('consistency_result_running');
+
+                $(apibutton).addClass('consistency_result_err');
+                $(apibutton).text(err+" ");
+
+                setTimeout(() => refreshConsistencyDisplay(skip+1), 300);
+            });
+
+    }
+}
+
+$(function()
+{
+    setTimeout(() => refreshConsistencyDisplay(0), 200);
+});
\ No newline at end of file
diff --git a/www/index.php b/www/index.php
index ecf2691..39a63d1 100644
--- a/www/index.php
+++ b/www/index.php
@@ -53,11 +53,9 @@ $URL_RULES =
 	[ 'url' => ['log'],                                    'target' => 'blog_list.php',              'options' => [ ],               'parameter' => [ ],                                       ],
 	[ 'url' => ['blogpost', 'index'],                      'target' => 'blog_list.php',              'options' => [ ],               'parameter' => [ ],                                       ],
 	[ 'url' => ['blog', '?{id}'],                          'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '' ],      ],
-	[ 'url' => ['blog', '?{id}'],                          'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '' ],      ],
 	[ 'url' => ['blog', '?{id}', '?{name}'],               'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '' ],      ],
 	[ 'url' => ['blog', '?{id}', '?{name}', '?{subview}'], 'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '%URL%' ], ],
 	[ 'url' => ['log', '?{id}'],                           'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '' ],      ],
-	[ 'url' => ['log', '?{id}'],                           'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '' ],      ],
 	[ 'url' => ['log', '?{id}', '?{name}'],                'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '' ],      ],
 	[ 'url' => ['log', '?{id}', '?{name}', '?{subview}'],  'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%URL%', 'subview' => '%URL%' ], ],
 	[ 'url' => ['blogpost', 'view'],                       'target' => 'blog_view.php',              'options' => [ ],               'parameter' => [ 'id' => '%GET%', 'subview' => '' ],      ],
diff --git a/www/internals/modules.php b/www/internals/modules.php
index ef80514..df79928 100644
--- a/www/internals/modules.php
+++ b/www/internals/modules.php
@@ -15,6 +15,7 @@ class Modules
 	/** @var WebApps|null */             private $webapps = null;
 	/** @var MikescherGitGraph|null */   private $extendedgitgraph = null;
 	/** @var Highscores|null */          private $highscores = null;
+	/** @var SelfTest|null */            private $selftest = null;
 
 	/** @var Website */
 	private $site;
@@ -89,4 +90,10 @@ class Modules
 		if ($this->highscores === null) { require_once 'modules/highscores.php'; $this->highscores = new Highscores($this->site); }
 		return $this->highscores;
 	}
+
+	public function SelfTest(): SelfTest
+	{
+		if ($this->selftest === null) { require_once 'modules/selftest.php'; $this->selftest = new SelfTest(); }
+		return $this->selftest;
+	}
 }
\ No newline at end of file
diff --git a/www/internals/modules/adventofcode.php b/www/internals/modules/adventofcode.php
index fd5f784..7ebebb3 100644
--- a/www/internals/modules/adventofcode.php
+++ b/www/internals/modules/adventofcode.php
@@ -45,6 +45,13 @@ class AdventOfCode
 		return $this->staticData;
 	}
 
+	public function listAllDays()
+	{
+		$r = [];
+		foreach ($this->staticData as $yeardata) foreach ($yeardata as $year => $daydata) $r []= $daydata;
+		return $this->staticData;
+	}
+
 	public function listSingleYear($year)
 	{
 		return $this->staticData[$year];
@@ -84,6 +91,7 @@ class AdventOfCode
 		$a['file_challenge'] = (__DIR__ . '/../../statics/aoc/'.$year.'/'.$n2p.'_challenge.txt');
 		$a['file_input']     = (__DIR__ . '/../../statics/aoc/'.$year.'/'.$n2p.'_input.txt');
 
+		$a['year']     = $year;
 		$a['date']     = $year . '-' . 12 . '-' . $n2p;
 
 		$solutionfiles = [];
diff --git a/www/internals/modules/selftest.php b/www/internals/modules/selftest.php
new file mode 100644
index 0000000..2d8e3b7
--- /dev/null
+++ b/www/internals/modules/selftest.php
@@ -0,0 +1,263 @@
+<?php
+
+class SelfTest
+{
+	private const STATUS_ERROR = 2;
+	private const STATUS_WARN  = 1;
+	private const STATUS_OK    = 0;
+
+	private const DISPLAY_NAMES =
+	[
+		'web::main'      => 'Website (http)',
+		'web::programs'  => 'Programs (http)',
+		'web::books'     => 'Books (http)',
+		'web::blog'      => 'Blog (http)',
+		'web::webapps'   => 'WebApps (http)',
+		'web::euler'     => 'Project Euler (http)',
+		'web::aoc'       => 'Advent of code (http)',
+		'api::default'   => 'API',
+		'api::highscore' => 'Highscores API',
+	];
+
+	private $methods = [];
+
+	public function __construct()
+	{
+		$this->init();
+	}
+
+	private function init()
+	{
+		$this->addMethodPathStatus("web::main::index-1",    200, '');
+		$this->addMethodPathStatus("web::main::index-2",    200, '/index');
+		$this->addMethodPathStatus("web::main::index-3",    200, '/index.php');
+		$this->addMethodPathStatus("web::main::index-4",    200, '/msmain/index');
+		$this->addMethodPathStatus("web::main::about-1",    200, '/about');
+		$this->addMethodPathStatus("web::main::about-2",    200, '/msmain/about');
+		$this->addMethodPathStatus("web::main::login-1",    200, '/login');
+		$this->addMethodPathStatus("web::main::404-1",      404, '/asdf');
+		$this->addMethodRedirect(  "web::main::redirect-1", '');
+		$this->addMethodRedirect(  "web::main::redirect-2", '/about');
+		$this->addHTTPSRedirect(   "web::main::redirect-3", '/about');
+
+		$this->addMethodPathStatus(     "web::programs::programs-list-1",     200, '/programs');
+		$this->addMethodPathStatus(     "web::programs::programs-list-2",     200, '/programs/index');
+		$this->addMethodPathStatus(     "web::programs::programs-list-3",     200, '/downloads/details.php');
+		$this->addMethodPathStatus(     "web::programs::programs-list-4",     200, '/downloads/downloads.php');
+		$this->addMethodMultiPathStatus("web::programs::programs-filtered-1", 200, '/programs/index?categoryfilter={0}', function(){ return array_key_map_unique(Website::inst()->modules->Programs()->listAll(), 'category'); });
+		$this->addMethodMultiPathStatus("web::programs::programs-filtered-2", 200, '/programs/cat/{0}', function(){ return array_key_map_unique(Website::inst()->modules->Programs()->listAll(), 'category'); });
+		$this->addMethodMultiPathStatus("web::programs::programs-show-1",     200, '/programs/view/{0}', function(){ return array_key_map(Website::inst()->modules->Programs()->listAll(), 'internal_name'); });
+		$this->addMethodMultiPathStatus("web::programs::programs-show-2",     200, '/programs/view?id={0}', function(){ return array_key_map(Website::inst()->modules->Programs()->listAll(), 'internal_name'); });
+		$this->addMethodMultiPathStatus("web::programs::programs-show-3",     200, '{0}', function(){ return array_key_map(Website::inst()->modules->Programs()->listAll(), 'url'); });
+		$this->addMethodMultiPathStatus("web::programs::programs-download-1", 301, '/downloads/{0}', function(){ return array_key_map(Website::inst()->modules->Programs()->listAll(), 'internal_name'); });
+		$this->addMethodMultiPathStatus("web::programs::programs-download-2", 301, '/programs/download/{0}', function(){ return array_key_map(Website::inst()->modules->Programs()->listAll(), 'internal_name'); });
+		$this->addMethodMultiPathStatus("web::programs::programs-download-3", 301, '/programs/download?id={0}', function(){ return array_key_map(Website::inst()->modules->Programs()->listAll(), 'internal_name'); });
+		$this->addMethodPathStatus(     "web::programs::programs-404-1",      404, '/programs/view/asdf_not_found');
+		$this->addMethodPathStatus(     "web::programs::programs-404-2",      404, '/programs/download/asdf_not_found');
+		$this->addMethodExtProgLinks(   "web::programs::programs-ext-links");
+
+		$this->addMethodPathStatus(     "web::books::books-list-1", 200, '/books');
+		$this->addMethodPathStatus(     "web::books::books-list-2", 200, '/books/list');
+		$this->addMethodMultiPathStatus("web::books::books-show-1", 200, '/books/view/{0}', function(){ return array_key_map(Website::inst()->modules->Books()->listAll(), 'id'); });
+		$this->addMethodMultiPathStatus("web::books::books-show-2", 200, '{0}', function(){ return array_key_map(Website::inst()->modules->Books()->listAll(), 'url'); });
+		$this->addMethodPathStatus(     "web::books::books-404-1",  404, '/books/view/asdf/not_found');
+
+		$this->addMethodPathStatus(     "web::blog::blog-list-1", 200, '/blog');
+		$this->addMethodPathStatus(     "web::blog::blog-list-2", 200, '/log');
+		$this->addMethodPathStatus(     "web::blog::blog-list-3", 200, '/blogpost/index');
+		$this->addMethodMultiPathStatus("web::blog::blog-show-1", 200, '/blog/{0}', function(){ return array_key_map(Website::inst()->modules->Blog()->listAll(), 'id'); });
+		$this->addMethodMultiPathStatus("web::blog::blog-show-2", 200, '/log/{0}', function(){ return array_key_map(Website::inst()->modules->Blog()->listAll(), 'id'); });
+		$this->addMethodMultiPathStatus("web::blog::blog-show-3", 200, '/blogpost/view?id={0}', function(){ return array_key_map(Website::inst()->modules->Blog()->listAll(), 'id'); });
+		$this->addMethodMultiPathStatus("web::blog::blog-show-4", 200, '{0}', function(){ return array_key_map(Website::inst()->modules->Blog()->listAll(), 'url'); });
+		$this->addMethodPathStatus(     "web::blog::blog-404-1",  404, '/blog/999999');
+		$this->addMethodPathStatus(     "web::blog::blog-404-2",  404, '/blog/999999/Notfound');
+		$this->addMethodPathStatus(     "web::blog::blog-404-3",  404, '/blog/asdf');
+
+		$this->addMethodPathStatus("web::webapps::webapps-list-1", 200, '/webapps');
+
+		$this->addMethodPathStatus(     "web::euler::euler-list-1", 200, '/blog/1/Project_Euler_with_Befunge');
+		$this->addMethodMultiPathStatus("web::euler::euler-show-1", 200, '{0}', function(){ return array_key_map(Website::inst()->modules->Euler()->listAll(), 'url'); });
+		$this->addMethodPathStatus(     "web::euler::euler-404-1",  404, '/blog/1/Project_Euler_with_Befunge/problem-A');
+		$this->addMethodPathStatus(     "web::euler::euler-404-2",  404, '/blog/1/Project_Euler_with_Befunge/problem-99999');
+		$this->addMethodPathStatus(     "web::euler::euler-404-3",  404, '/blog/1/Project_Euler_with_Befunge/asdf');
+
+		$this->addMethodMultiPathStatus("web::aoc::aoc-list-1", 200, '{0}', function(){ return array_map(function($x){return Website::inst()->modules->AdventOfCode()->getURLForYear($x);},Website::inst()->modules->AdventOfCode()->listYears()); });
+		$this->addMethodMultiPathStatus("web::aoc::aoc-show-1", 200, '{0}', function(){ return array_key_map(Website::inst()->modules->AdventOfCode()->listAllDays(), 'url'); });
+		$this->addMethodPathStatus(     "web::aoc::aoc-404-1",  404, '/blog/25/Advent_of_Code_2017/day-26');
+		$this->addMethodPathStatus(     "web::aoc::aoc-404-2",  404, '/blog/23/Advent_of_Code_2018/day-27');
+		$this->addMethodPathStatus(     "web::aoc::aoc-404-3",  404, '/blog/24/Advent_of_Code_2019/day-28');
+
+		$this->addCheckConsistency("modules::database::database-check-consistency",         function(){ return Website::inst()->modules->Database(); });
+		$this->addCheckConsistency("modules::blog::blog-check-consistency",                 function(){ return Website::inst()->modules->Blog(); });
+		$this->addCheckConsistency("modules::euler::euler-check-consistency",               function(){ return Website::inst()->modules->Euler(); });
+		$this->addCheckConsistency("modules::books::books-check-consistency",               function(){ return Website::inst()->modules->Books(); });
+		$this->addCheckConsistency("modules::extgitgraph::extgitgraph-check-consistency",   function(){ return Website::inst()->modules->ExtendedGitGraph(); });
+		$this->addCheckConsistency("modules::programs::programs-check-consistency",         function(){ return Website::inst()->modules->Programs(); });
+		$this->addCheckConsistency("modules::books::books-check-consistency",               function(){ return Website::inst()->modules->Books(); });
+		$this->addCheckConsistency("modules::adventofcode::adventofcode-check-consistency", function(){ return Website::inst()->modules->AdventOfCode(); });
+		$this->addCheckConsistency("modules::anstatistics::anstatistics-check-consistency", function(){ return Website::inst()->modules->AlephNoteStatistics(); });
+		$this->addCheckConsistency("modules::updateslog::updateslog-check-consistency",     function(){ return Website::inst()->modules->UpdatesLog(); });
+		$this->addCheckConsistency("modules::webapps::webapps-check-consistency",           function(){ return Website::inst()->modules->WebApps(); });
+		$this->addCheckConsistency("modules::highscores::highscores-check-consistency",     function(){ return Website::inst()->modules->Highscores(); });
+
+		$ajaxsecret = Website::inst()->config['ajax_secret'];
+
+		$this->addMethodPathResponse(   "api::default::base-test-2",   200,  '{}', '/api/test');
+		$this->addMethodPathResponse(   "api::default::base-test-4",   200,  '{}', '/api/base::test');
+		$this->addMethodMultiPathStatus("api::default::updatecheck-1", 200, '/update.php?name={0}', function(){ return array_keys(Website::inst()->modules->UpdatesLog()->listUpdateData()); });
+		$this->addMethodMultiPathStatus("api::default::updatecheck-2", 200, '/update.php/{0}',      function(){ return array_keys(Website::inst()->modules->UpdatesLog()->listUpdateData()); });
+		$this->addMethodMultiPathStatus("api::default::updatecheck-3", 200, '/update?name={0}',     function(){ return array_keys(Website::inst()->modules->UpdatesLog()->listUpdateData()); });
+		$this->addMethodMultiPathStatus("api::default::updatecheck-4", 200, '/update/{0}',          function(){ return array_keys(Website::inst()->modules->UpdatesLog()->listUpdateData()); });
+		$this->addMethodMultiPathStatus("api::default::updatecheck-5", 200, '/update2?name={0}',    function(){ return array_keys(Website::inst()->modules->UpdatesLog()->listUpdateData()); });
+		$this->addMethodMultiPathStatus("api::default::updatecheck-6", 200, '/api/update?name={0}', function(){ return array_keys(Website::inst()->modules->UpdatesLog()->listUpdateData()); });
+		$this->addMethodMultiPathStatus("api::default::updatecheck-7", 200, '/api/update/{0}',      function(){ return array_keys(Website::inst()->modules->UpdatesLog()->listUpdateData()); });
+		$this->addMethodPathStatus(     "api::default::egg-status",    200, "/api/extendedgitgraph::status?ajax_secret=$ajaxsecret");
+		$this->addMethodPathStatus(     "api::default::an-show",       200, "/api/alephnote::show?ajax_secret=$ajaxsecret");
+		$this->addMethodPathStatus(     "api::default::updates-show",  200, "/api/updates::show?ajax_secret=$ajaxsecret");
+		$this->addMethodPathStatus(     "api::default::aoc-ajax",      200, "/api/html::panel_aoc_calendar");
+		$this->addMethodPathStatus(     "api::default::404-1",         404, '/api/update/no_prog_xx');
+		$this->addMethodPathStatus(     "api::default::404-2",         404, '/api/asdf::notfound');
+
+		$this->addMethodPathStatus(     "api::highscore::listgames-1",   200, "/highscores/list.php");
+		$this->addMethodPathStatus(     "api::highscore::listgames-2",   200, "/highscores/list");
+		$this->addMethodPathStatus(     "api::highscore::listgames-3",   200, "/highscores/listgames");
+		$this->addMethodMultiPathStatus("api::highscore::listentries-1", 200, "/highscores/list.php?gameid={0}", function(){ return [1,2,3,4,5,6]; });
+		$this->addMethodMultiPathStatus("api::highscore::listentries-2", 200, "/highscores/list?gameid={0}", function(){ return [1,2,3,4,5,6]; });
+		$this->addMethodMultiPathStatus("api::highscore::listentries-3", 200, "/highscores/listentries?gameid={0}", function(){ return [1,2,3,4,5,6]; });
+		$this->addMethodMultiPathStatus("api::highscore::top50-1",       200, "/highscores/list_top50.php?gameid={0}", function(){ return [1,2,3,4,5,6]; });
+		$this->addMethodMultiPathStatus("api::highscore::top50-2",       200, "/highscores/list_top50?gameid={0}", function(){ return [1,2,3,4,5,6]; });
+
+		$this->addMethodGitStatusCheck("backend::git::git-status");
+	}
+
+	/** @noinspection PhpUnhandledExceptionInspection */
+	public function listMethodGroups()
+	{
+		$data = [];
+		foreach ($this->methods as $method)
+		{
+			$parts = explode('::', $method['name']);
+			if (count($parts) !== 3) throw new Exception();
+
+			$data []= ($parts[0] . '::' . $parts[1]);
+		}
+		$data = array_unique($data);
+
+		$result = [];
+		foreach ($data as $d)
+		{
+			$result []=
+			[
+				'name'   => key_exists($d, self::DISPLAY_NAMES) ? self::DISPLAY_NAMES[$d] : $d,
+				'filter' => $d.'::*',
+				'base'   => $d
+			];
+		}
+		return $result;
+	}
+
+	private function addMethodPathStatus(string $name, int $status, string $path)
+	{
+		$this->methods []=
+		[
+			'name' => $name,
+			'func' => function() use ($name, $path, $status)
+			{
+				$xname = explode('::', $name)[2];
+
+				try
+				{
+					//$r = curl_http_request($_SERVER['HTTP_HOST'] . $path);
+					$r = curl_http_request('https://www.mikescher.com/' . $path);
+					if ($r['statuscode'] == $status) return
+					[
+						'result' => self::STATUS_OK,
+						'message' => "{".$xname."} succeeded",
+						'long' => null,
+						'exception' => null,
+					];
+
+					return
+					[
+						'result' => self::STATUS_ERROR,
+						'message' => '{'.$xname.'} failed: Request returned wrong statuscode',
+						'long' => 'Wrong HTTP Statuscode (Expected: ['.$status.']; Found: ['.$r['statuscode'].'])' . "\n" . "Response:\n" . $r['output'],
+						'exception' => null,
+					];
+				}
+				catch (Exception $e)
+				{
+					return
+					[
+						'result' => self::STATUS_ERROR,
+						'message' => "{$xname} failed: " . $e->getMessage(),
+						'long' => formatException($e),
+						'exception' => $e,
+					];
+				}
+			}
+		];
+	}
+
+	private function addMethodMultiPathStatus(string $name, int $status, string $path, Closure $supplier)
+	{
+		//TODO
+	}
+
+	private function addCheckConsistency(string $name, Closure $moduleSupplier)
+	{
+		//TODO
+	}
+
+	private function addMethodPathResponse(string $name, int $statuscode, string $json_expected, string $path)
+	{
+		//TODO
+	}
+
+	private function addMethodGitStatusCheck(string $name)
+	{
+		//TODO
+	}
+
+	private function addMethodExtProgLinks(string $name)
+	{
+		//TODO
+	}
+
+	private function addMethodRedirect(string $name, string $url)
+	{
+		//TODO
+	}
+
+	private function addHTTPSRedirect(string $name)
+	{
+		//TODO
+	}
+
+	public function run($filter)
+	{
+		$rex = '/^' . str_replace('*', '([^:]*)', $filter) . '$/';
+
+		$fullmessage = '';
+
+		$count = 0;
+		foreach ($this->methods as $method)
+		{
+			if (!preg_match($rex, $method['name'])) continue;
+
+			$r = $method['func']();
+			if ($r['result'] !== self::STATUS_OK) return $r;
+			$fullmessage = $fullmessage . $method['message'] . "\n";
+
+			$count++;
+		}
+
+		return
+		[
+			'result' => self::STATUS_OK,
+			'message' => "{$count} methods succeeded",
+			'long' => $fullmessage,
+			'exception' => null,
+		];
+	}
+}
\ No newline at end of file
diff --git a/www/internals/utils.php b/www/internals/utils.php
index c157590..db0b7d0 100644
--- a/www/internals/utils.php
+++ b/www/internals/utils.php
@@ -245,4 +245,34 @@ function formatException($e)
 	}
 
 	return 'object';
-}
\ No newline at end of file
+}
+
+function array_key_map_unique(array $array, string $key)
+{
+	$r = [];
+	foreach ($array as $d) if (!in_array($d[$key], $r)) $r []= $d[$key];
+	return $r;
+}
+
+function array_key_map(array $array, string $key)
+{
+	$r = [];
+	foreach ($array as $d) $r []= $d[$key];
+	return $r;
+}
+
+function curl_http_request($url)
+{
+	$ch = curl_init($url);
+	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+	curl_setopt($ch, CURLOPT_TIMEOUT, 10);
+
+	$output   = curl_exec($ch);
+	$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+	$redirect = curl_getinfo($ch, CURLINFO_REDIRECT_URL);
+	curl_close($ch);
+
+	return [ 'output'=>$output, 'statuscode'=>$httpcode, 'redirect'=>$redirect ];
+}
+
+
diff --git a/www/pages/admin.php b/www/pages/admin.php
index 7026043..548e663 100644
--- a/www/pages/admin.php
+++ b/www/pages/admin.php
@@ -17,24 +17,6 @@ $FRAME_OPTIONS->addScript('/data/javascript/admin.js', true);
 
 $connected = true; try { $SITE->modules->Database(); } catch (Exception $e) { $connected = false; }
 
-$rok = ['result'=>'ok','message'=>''];
-
-$consistency_blog    = $rok; try { $consistency_blog    = $SITE->modules->Blog()->checkConsistency();              } catch (Exception $e) { $consistency_blog    = ['result'=>'ok', 'message'=>"$e"]; }
-$consistency_prog    = $rok; try { $consistency_prog    = $SITE->modules->Programs()->checkConsistency();          } catch (Exception $e) { $consistency_prog    = ['result'=>'ok', 'message'=>"$e"]; }
-$consistency_euler   = $rok; try { $consistency_euler   = $SITE->modules->Euler()->checkConsistency();             } catch (Exception $e) { $consistency_euler   = ['result'=>'ok', 'message'=>"$e"]; }
-$consistency_books   = $rok; try { $consistency_books   = $SITE->modules->Books()->checkConsistency();             } catch (Exception $e) { $consistency_books   = ['result'=>'ok', 'message'=>"$e"]; }
-$consistency_egg     = $rok; try { $consistency_egg     = $SITE->modules->ExtendedGitGraph()->checkConsistency();  } catch (Exception $e) { $consistency_egg     = ['result'=>'ok', 'message'=>"$e"]; }
-$consistency_progimg = $rok; try { $consistency_progimg = $SITE->modules->Programs()->checkThumbnails();           } catch (Exception $e) { $consistency_progimg = ['result'=>'ok', 'message'=>"$e"]; }
-$consistency_bookimg = $rok; try { $consistency_bookimg = $SITE->modules->Books()->checkThumbnails();              } catch (Exception $e) { $consistency_bookimg = ['result'=>'ok', 'message'=>"$e"]; }
-$consistency_aoc     = $rok; try { $consistency_aoc     = $SITE->modules->AdventOfCode()->checkConsistency();      } catch (Exception $e) { $consistency_aoc     = ['result'=>'ok', 'message'=>"$e"]; }
-
-function dumpConsistency($c)
-{
-	if ($c['result']==='ok') echo "<span class='consistency_result_ok'>OK</span>";
-	else if ($c['result']==='warn') echo "<span class='consistency_result_warn'>".$c['message']."</span>";
-	else echo "<span class='consistency_result_err'>".$c['message']."</span>";
-}
-
 ?>
 
 <div class="admincontent">
@@ -47,6 +29,12 @@ function dumpConsistency($c)
         </div>
 	<?php endif; ?>
 
+	<?php if (!$SITE->isProd()): ?>
+        <div class="boxedcontent warnbox">
+            <div class="bc_data">Website runs in /dev/ mode</div>
+        </div>
+	<?php endif; ?>
+
     <!-- - - - - - - - - - - - - - - - - - - - - -->
 
     <div class="boxedcontent">
@@ -67,19 +55,13 @@ function dumpConsistency($c)
 
         <div class="bc_data">
             <div class="keyvaluelist kvl_200">
-                <div><span>Program thumbnails:</span> <?php dumpConsistency($consistency_progimg); ?></div>
-                <div><span>ExtendedGitGraph:</span>   <?php dumpConsistency($consistency_egg);     ?></div>
-                <div><span>Book thumbnails:</span>    <?php dumpConsistency($consistency_bookimg); ?></div>
-                <div><span>Blog data:</span>          <?php dumpConsistency($consistency_blog);    ?></div>
-                <div><span>Euler data:</span>         <?php dumpConsistency($consistency_euler);   ?></div>
-                <div><span>AdventOfCode data:</span>  <?php dumpConsistency($consistency_aoc);     ?></div>
-                <div><span>Programs data:</span>      <?php dumpConsistency($consistency_prog);    ?></div>
-                <div><span>Books data:</span>         <?php dumpConsistency($consistency_books);   ?></div>
+                <?php foreach ($SITE->modules->SelfTest()->listMethodGroups() as $group): ?>
+                    <div><span><?php echo $group['name']; ?></span><span class='consistency_result_intermed consistence_ajax_handler' data-filter="<?php echo $group['filter']; ?>">&nbsp;</span></div>
+                <?php endforeach; ?>
             </div>
             <br/>
             <a class="button" href="/api/site::createProgramThumbnails">Update Program Thumbnails</a>
             <a class="button" href="/api/site::createBookThumbnails">Update Book Thumbnails</a>
-
         </div>
     </div>
 
diff --git a/www/pages/api.php b/www/pages/api.php
index 93e54c0..c25dff6 100644
--- a/www/pages/api.php
+++ b/www/pages/api.php
@@ -19,6 +19,7 @@ $API_COMMANDS =
 
 	'site::createprogramthumbnails' => [ 'src' => __DIR__.'/../commands/site_createProgramThumbnails.php', 'auth' => 'admin'          ],
 	'site::createbookthumbnails'    => [ 'src' => __DIR__.'/../commands/site_createBookThumbnails.php',    'auth' => 'admin'          ],
+	'site::selftest'                => [ 'src' => __DIR__.'/../commands/site_selftest.php',                'auth' => 'admin'          ],
 
 	'server::setselfaddress'        => [ 'src' => __DIR__.'/../commands/server_setselfaddress.php',        'auth' => 'none'           ],
 	'server::gitwebhook'            => [ 'src' => __DIR__.'/../commands/server_gitwebhook.php',            'auth' => 'webhook_secret' ],