diff --git a/autoload.php b/autoload.php
index 646d26b..e7798a4 100644
--- a/autoload.php
+++ b/autoload.php
@@ -1,9 +1,11 @@
 <?php
 spl_autoload_register(function ($class): void {
-  $prefix = 'Site\\';
+  $prefixes = ['Site\\', 'Std\\'];
   $base = realpath(__DIR__.'/src');
+  $prefixExist = false;
 
-  if (strncmp($prefix, $class, strlen($prefix)) !== 0) return;
+  foreach ($prefixes as $prefix) { if (strncmp($prefix, $class, strlen($prefix)) === 0) $prefixExist = true; }
+  if (!$prefixExist) return;
   $ps = str_replace('\\', DIRECTORY_SEPARATOR, $class);
   $file = $base.DIRECTORY_SEPARATOR.$ps.'.php';
   if (file_exists($file)) require $file;
diff --git a/doc/ja/routes.md b/doc/ja/routes.md
index 8a0e363..d47e3b8 100644
--- a/doc/ja/routes.md
+++ b/doc/ja/routes.md
@@ -1,6 +1,6 @@
 # ルートの仕組み
 
-`route.php` では、 `use Site\Lib\Route; `というインクルードもある事に
+`route.php` では、 `use Std\Lib\Route; `というインクルードもある事に
 気づくでしょう。
 これが全てのルートを処理します。
 ルートの基本的な流れは次の通りです：
diff --git a/route.php b/route.php
index 2ffa1e8..03fd991 100644
--- a/route.php
+++ b/route.php
@@ -2,7 +2,7 @@
 
 require_once __DIR__.DIRECTORY_SEPARATOR.'/autoload.php';
 
-use Site\Lib\Route;
+use Std\Lib\Route;
 
 use Site\Controller\Atom;
 use Site\Controller\Fediverse;
@@ -20,7 +20,6 @@ if (DEBUG_MODE) {
 }
 include(ROOT.'/util.php');
 
-
 $routes = [
   Route::add('GET', 'blog/{page}', Home::class.'@article'),
   Route::add('GET', 'about', Page::class.'@about'),
diff --git a/src/Site/Controller/Atom.php b/src/Site/Controller/Atom.php
index 0dfddbe..9bb450d 100644
--- a/src/Site/Controller/Atom.php
+++ b/src/Site/Controller/Atom.php
@@ -2,7 +2,7 @@
 namespace Site\Controller;
 
 use Site\Controller\BlogPost;
-use Site\Lib\Markdown;
+use Std\Lib\Markdown;
 
 class Atom extends BlogPost {
   private string $domain = 'technicalsuwako.moe';
diff --git a/src/Site/Controller/Fediverse.php b/src/Site/Controller/Fediverse.php
index e73af7c..de7b67b 100644
--- a/src/Site/Controller/Fediverse.php
+++ b/src/Site/Controller/Fediverse.php
@@ -3,7 +3,7 @@ namespace Site\Controller;
 
 use Site\Controller\BlogPost;
 use Site\Controller\Mods;
-use Site\Lib\Activitypub;
+use Std\Lib\Activitypub;
 
 class Fediverse extends BlogPost {
   use Mods;
diff --git a/src/Site/Controller/Home.php b/src/Site/Controller/Home.php
index b2a0301..ac3b057 100644
--- a/src/Site/Controller/Home.php
+++ b/src/Site/Controller/Home.php
@@ -3,10 +3,10 @@ namespace Site\Controller;
 
 use Site\Controller\BlogPost;
 use Site\Controller\Mods;
-use Site\Lib\Activitypub;
-use Site\Lib\Auth;
-use Site\Lib\Markdown;
-use Site\Lib\Template;
+use Std\Lib\Activitypub;
+use Std\Lib\Auth;
+use Std\Lib\Markdown;
+use Std\Lib\Template;
 
 class Home extends BlogPost {
   use Mods;
diff --git a/src/Site/Controller/Notfound.php b/src/Site/Controller/Notfound.php
index c0bd9bf..4caf421 100644
--- a/src/Site/Controller/Notfound.php
+++ b/src/Site/Controller/Notfound.php
@@ -2,8 +2,8 @@
 namespace Site\Controller;
 
 use Site\Controller\Mods;
-use Site\Lib\Auth;
-use Site\Lib\Template;
+use Std\Lib\Auth;
+use Std\Lib\Template;
 
 class Notfound {
   use Mods;
diff --git a/src/Site/Controller/Page.php b/src/Site/Controller/Page.php
index 7d920ec..5adcc3d 100644
--- a/src/Site/Controller/Page.php
+++ b/src/Site/Controller/Page.php
@@ -2,8 +2,8 @@
 namespace Site\Controller;
 
 use Site\Controller\Mods;
-use Site\Lib\Auth;
-use Site\Lib\Template;
+use Std\Lib\Auth;
+use Std\Lib\Template;
 
 class Page {
   use Mods;
diff --git a/src/Site/Controller/User.php b/src/Site/Controller/User.php
index 2c7d33c..98706a4 100644
--- a/src/Site/Controller/User.php
+++ b/src/Site/Controller/User.php
@@ -2,8 +2,8 @@
 namespace Site\Controller;
 
 use Site\Controller\Mods;
-use Site\Lib\Auth;
-use Site\Lib\Template;
+use Std\Lib\Auth;
+use Std\Lib\Template;
 
 class User {
   use Mods;
diff --git a/src/Site/Test/ControllerUser.php b/src/Site/Test/ControllerUser.php
new file mode 100644
index 0000000..52caeb9
--- /dev/null
+++ b/src/Site/Test/ControllerUser.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Site\Test;
+
+require_once __DIR__.'/../../../autoload.php';
+
+use Site\Controller\User;
+use Std\Lib\Tester;
+
+$test = new Tester([
+  'colorOutput' => true,
+  'verboseOutput' => true
+]);
+
+$test->describe('', function($test): void {
+  $test->it('', function($test): void {
+    // TODO
+  });
+});
\ No newline at end of file
diff --git a/src/Site/Lib/Activitypub.php b/src/Std/Lib/Activitypub.php
similarity index 99%
rename from src/Site/Lib/Activitypub.php
rename to src/Std/Lib/Activitypub.php
index 55df4b4..3cd0eac 100644
--- a/src/Site/Lib/Activitypub.php
+++ b/src/Std/Lib/Activitypub.php
@@ -1,7 +1,7 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
-use Site\Lib\Curl;
+use Std\Lib\Curl;
 
 /**
  * ActivityPubプロトコルの実装クラス
diff --git a/src/Site/Lib/Auth.php b/src/Std/Lib/Auth.php
similarity index 97%
rename from src/Site/Lib/Auth.php
rename to src/Std/Lib/Auth.php
index 5ec7950..b59a605 100644
--- a/src/Site/Lib/Auth.php
+++ b/src/Std/Lib/Auth.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 class Auth {
   private int $id;
diff --git a/src/Site/Lib/Curl.php b/src/Std/Lib/Curl.php
similarity index 99%
rename from src/Site/Lib/Curl.php
rename to src/Std/Lib/Curl.php
index a02a98d..dfb8662 100644
--- a/src/Site/Lib/Curl.php
+++ b/src/Std/Lib/Curl.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 /**
  * php_curlへの依存を排除するための独自のCURL実装
diff --git a/src/Site/Lib/DiffViewer.php b/src/Std/Lib/DiffViewer.php
similarity index 97%
rename from src/Site/Lib/DiffViewer.php
rename to src/Std/Lib/DiffViewer.php
index e49e0fb..1797eef 100644
--- a/src/Site/Lib/DiffViewer.php
+++ b/src/Std/Lib/DiffViewer.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 class DiffViewer {
   private $diffContent;
diff --git a/src/Site/Lib/Image.php b/src/Std/Lib/Image.php
similarity index 91%
rename from src/Site/Lib/Image.php
rename to src/Std/Lib/Image.php
index 27961c6..7bb0a80 100644
--- a/src/Site/Lib/Image.php
+++ b/src/Std/Lib/Image.php
@@ -1,11 +1,11 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
-use Site\Lib\Image\ImageInterface;
-use Site\Lib\Image\Gif;
-use Site\Lib\Image\Jpeg;
-use Site\Lib\Image\Png;
-use Site\Lib\Image\Targa;
+use Std\Lib\Image\ImageInterface;
+use Std\Lib\Image\Gif;
+use Std\Lib\Image\Jpeg;
+use Std\Lib\Image\Png;
+use Std\Lib\Image\Targa;
 
 class RGB {
   public int $r;
diff --git a/src/Site/Lib/Image/Gif.php b/src/Std/Lib/Image/Gif.php
similarity index 95%
rename from src/Site/Lib/Image/Gif.php
rename to src/Std/Lib/Image/Gif.php
index dc10ffa..ecf1530 100644
--- a/src/Site/Lib/Image/Gif.php
+++ b/src/Std/Lib/Image/Gif.php
@@ -1,7 +1,7 @@
 <?php
-namespace Site\Lib\Image;
+namespace Std\Lib\Image;
 
-use Site\Lib\Image\ImageInterface;
+use Std\Lib\Image\ImageInterface;
 
 class Gif implements ImageInterface {
   public int $width = 0;
diff --git a/src/Site/Lib/Image/ImageInterface.php b/src/Std/Lib/Image/ImageInterface.php
similarity index 73%
rename from src/Site/Lib/Image/ImageInterface.php
rename to src/Std/Lib/Image/ImageInterface.php
index a527646..f6e5854 100644
--- a/src/Site/Lib/Image/ImageInterface.php
+++ b/src/Std/Lib/Image/ImageInterface.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib\Image;
+namespace Std\Lib\Image;
 
 interface ImageInterface {
   public function parse(string $file): \stdClass;
diff --git a/src/Site/Lib/Image/Jpeg.php b/src/Std/Lib/Image/Jpeg.php
similarity index 93%
rename from src/Site/Lib/Image/Jpeg.php
rename to src/Std/Lib/Image/Jpeg.php
index 78b960b..984f4e5 100644
--- a/src/Site/Lib/Image/Jpeg.php
+++ b/src/Std/Lib/Image/Jpeg.php
@@ -1,7 +1,7 @@
 <?php
-namespace Site\Lib\Image;
+namespace Std\Lib\Image;
 
-use Site\Lib\Image\ImageInterface;
+use Std\Lib\Image\ImageInterface;
 
 class Jpeg implements ImageInterface {
   public int $width = 0;
diff --git a/src/Site/Lib/Image/Png.php b/src/Std/Lib/Image/Png.php
similarity index 96%
rename from src/Site/Lib/Image/Png.php
rename to src/Std/Lib/Image/Png.php
index 402ae59..9e78044 100644
--- a/src/Site/Lib/Image/Png.php
+++ b/src/Std/Lib/Image/Png.php
@@ -1,7 +1,7 @@
 <?php
-namespace Site\Lib\Image;
+namespace Std\Lib\Image;
 
-use Site\Lib\Image\ImageInterface;
+use Std\Lib\Image\ImageInterface;
 
 class Png implements ImageInterface {
   public \stdClass $IHDR; // 画像ヘッダー
@@ -151,7 +151,7 @@ next_chunk:
     if ($nextChunk === "\x50\x4c\x54\x45") { // PLTE
       $palette = [];
       for ($i = 0; $i < $length; $i += 3) {
-        $colors = new \Site\Lib\RGB(ord($data[$i]), ord($data[$i+1]), ord($data[$i+2]));
+        $colors = new \Std\Lib\RGB(ord($data[$i]), ord($data[$i+1]), ord($data[$i+2]));
         $palette[] = $colors->rgb;
       }
 
@@ -173,7 +173,7 @@ next_chunk:
       $bytes = $this->IHDR->colorType === 2 ? 3 : 1;
       for ($i = 0; $i < $length; $i += $bytes) {
         if ($this->IHDR->colorType === 2) {
-          $colors = new \Site\Lib\RGB(ord($data[$i]), ord($data[$i+1]), ord($data[$i+2]));
+          $colors = new \Std\Lib\RGB(ord($data[$i]), ord($data[$i+1]), ord($data[$i+2]));
           $vals[] = $colors->rgb;
         } else {
           $vals[] = ord($data[$i]);
diff --git a/src/Site/Lib/Image/Targa.php b/src/Std/Lib/Image/Targa.php
similarity index 95%
rename from src/Site/Lib/Image/Targa.php
rename to src/Std/Lib/Image/Targa.php
index 7f3b1eb..5ab06f7 100644
--- a/src/Site/Lib/Image/Targa.php
+++ b/src/Std/Lib/Image/Targa.php
@@ -1,7 +1,7 @@
 <?php
-namespace Site\Lib\Image;
+namespace Std\Lib\Image;
 
-use Site\Lib\Image\ImageInterface;
+use Std\Lib\Image\ImageInterface;
 
 class Targa implements ImageInterface {
   public int $id = 0;
diff --git a/src/Site/Lib/Mailer.php b/src/Std/Lib/Mailer.php
similarity index 99%
rename from src/Site/Lib/Mailer.php
rename to src/Std/Lib/Mailer.php
index 11e128b..87864aa 100644
--- a/src/Site/Lib/Mailer.php
+++ b/src/Std/Lib/Mailer.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 class Mailer {
   private $socket;
diff --git a/src/Site/Lib/Markdown.php b/src/Std/Lib/Markdown.php
similarity index 99%
rename from src/Site/Lib/Markdown.php
rename to src/Std/Lib/Markdown.php
index 6de8ba2..180de30 100644
--- a/src/Site/Lib/Markdown.php
+++ b/src/Std/Lib/Markdown.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 class Markdown {
   private string $content;
diff --git a/src/Site/Lib/Route.php b/src/Std/Lib/Route.php
similarity index 99%
rename from src/Site/Lib/Route.php
rename to src/Std/Lib/Route.php
index 92e6b54..a95e056 100644
--- a/src/Site/Lib/Route.php
+++ b/src/Std/Lib/Route.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 class Route {
   protected static array $routes = [];
diff --git a/src/Site/Lib/Template.php b/src/Std/Lib/Template.php
similarity index 99%
rename from src/Site/Lib/Template.php
rename to src/Std/Lib/Template.php
index 11ab7f3..55066bf 100644
--- a/src/Site/Lib/Template.php
+++ b/src/Std/Lib/Template.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 class Template {
   private string $tmplExt = '.maron';
diff --git a/src/Site/Lib/Tester.php b/src/Std/Lib/Tester.php
similarity index 99%
rename from src/Site/Lib/Tester.php
rename to src/Std/Lib/Tester.php
index fa4e75c..4ce7f84 100644
--- a/src/Site/Lib/Tester.php
+++ b/src/Std/Lib/Tester.php
@@ -1,5 +1,5 @@
 <?php
-namespace Site\Lib;
+namespace Std\Lib;
 
 /**
  * アサーション失敗用のカスタム例外
diff --git a/src/Site/Test/LibActivitypub.php b/src/Std/Test/LibActivitypub.php
similarity index 94%
rename from src/Site/Test/LibActivitypub.php
rename to src/Std/Test/LibActivitypub.php
index 73a1540..abc7dca 100644
--- a/src/Site/Test/LibActivitypub.php
+++ b/src/Std/Test/LibActivitypub.php
@@ -1,10 +1,10 @@
 <?php
-namespace Site\Test;
+namespace Std\Test;
 
 require_once __DIR__.'/../../../autoload.php';
 
-use Site\Lib\Tester;
-use Site\Lib\Activitypub;
+use Std\Lib\Tester;
+use Std\Lib\Activitypub;
 use Site\Controller\BlogPost;
 
 if (ACTIVITYPUB_ENABLED) {
diff --git a/src/Site/Test/LibAuth.php b/src/Std/Test/LibAuth.php
similarity index 95%
rename from src/Site/Test/LibAuth.php
rename to src/Std/Test/LibAuth.php
index 6b676ba..38a2bdd 100644
--- a/src/Site/Test/LibAuth.php
+++ b/src/Std/Test/LibAuth.php
@@ -1,10 +1,10 @@
 <?php
-namespace Site\Test;
+namespace Std\Test;
 
 require_once __DIR__.'/../../../autoload.php';
 
-use Site\Lib\Tester;
-use Site\Lib\Auth;
+use Std\Lib\Tester;
+use Std\Lib\Auth;
 
 if (AUTH_ENABLED) {
   $test = new Tester([
@@ -156,7 +156,7 @@ if (AUTH_ENABLED) {
     });
   }
 
-  // TODO: CLIからクッキーを設定出来ないから、「Site\Lib\Auth::getUserData(): Return value must be of type stdClass, null returned」って発生する・・・
+  // TODO: CLIからクッキーを設定出来ないから、「Lib\Auth::getUserData(): Return value must be of type stdClass, null returned」って発生する・・・
   // $test->describe('ログインとログアウト', function($test): void {
   //   $user = "admin1234";
   //   $pass = "testTEST1234!#$%@[]:;";
diff --git a/src/Site/Test/LibCurl.php b/src/Std/Test/LibCurl.php
similarity index 98%
rename from src/Site/Test/LibCurl.php
rename to src/Std/Test/LibCurl.php
index 43037f5..91ff155 100644
--- a/src/Site/Test/LibCurl.php
+++ b/src/Std/Test/LibCurl.php
@@ -1,10 +1,10 @@
 <?php
-namespace Site\Test;
+namespace Std\Test;
 
 require_once __DIR__.'/../../../autoload.php';
 
-use Site\Lib\Tester;
-use Site\Lib\Curl;
+use Std\Lib\Tester;
+use Std\Lib\Curl;
 
 if (CURL_ENABLED) {
   $test = new Tester([
diff --git a/src/Site/Test/LibMarkdown.php b/src/Std/Test/LibMarkdown.php
similarity index 91%
rename from src/Site/Test/LibMarkdown.php
rename to src/Std/Test/LibMarkdown.php
index a183f13..562f840 100644
--- a/src/Site/Test/LibMarkdown.php
+++ b/src/Std/Test/LibMarkdown.php
@@ -1,10 +1,10 @@
 <?php
-namespace Site\Test;
+namespace Std\Test;
 
 require_once __DIR__.'/../../../autoload.php';
 
-use Site\Lib\Tester;
-use Site\Lib\Markdown;
+use Std\Lib\Tester;
+use Std\Lib\Markdown;
 
 $test = new Tester([
   'colorOutput' => true,
@@ -80,7 +80,7 @@ $test->describe('マークダウン', function($test): void {
     $body = $md->parse();
     $test->assertNotNull($body);
 
-    $expect = "<h1>ケロケロ</h1>";
+    $expect = "<h1 id=\"section-1\">ケロケロ</h1>";
     $actual = trim($body);
 
     $test->assertEquals($expect, $actual);
@@ -95,7 +95,7 @@ $test->describe('マークダウン', function($test): void {
     $body = $md->parse();
     $test->assertNotNull($body);
 
-    $expect = "<h2>ケロケロ</h2>";
+    $expect = "<h2 id=\"section-1\">ケロケロ</h2>";
     $actual = trim($body);
 
     $test->assertEquals($expect, $actual);
@@ -110,7 +110,7 @@ $test->describe('マークダウン', function($test): void {
     $body = $md->parse();
     $test->assertNotNull($body);
 
-    $expect = "<h3>ケロケロ</h3>";
+    $expect = "<h3 id=\"section-1\">ケロケロ</h3>";
     $actual = trim($body);
 
     $test->assertEquals($expect, $actual);
@@ -125,7 +125,7 @@ $test->describe('マークダウン', function($test): void {
     $body = $md->parse();
     $test->assertNotNull($body);
 
-    $expect = "<h4>ケロケロ</h4>";
+    $expect = "<h4 id=\"section-1\">ケロケロ</h4>";
     $actual = trim($body);
 
     $test->assertEquals($expect, $actual);
@@ -140,7 +140,7 @@ $test->describe('マークダウン', function($test): void {
     $body = $md->parse();
     $test->assertNotNull($body);
 
-    $expect = "<h5>ケロケロ</h5>";
+    $expect = "<h5 id=\"section-1\">ケロケロ</h5>";
     $actual = trim($body);
 
     $test->assertEquals($expect, $actual);
@@ -155,7 +155,7 @@ $test->describe('マークダウン', function($test): void {
     $body = $md->parse();
     $test->assertNotNull($body);
 
-    $expect = "<h6>ケロケロ</h6>";
+    $expect = "<h6 id=\"section-1\">ケロケロ</h6>";
     $actual = trim($body);
 
     $test->assertEquals($expect, $actual);
diff --git a/src/Site/Test/LibRoute.php b/src/Std/Test/LibRoute.php
similarity index 81%
rename from src/Site/Test/LibRoute.php
rename to src/Std/Test/LibRoute.php
index cb625ff..58dc24d 100644
--- a/src/Site/Test/LibRoute.php
+++ b/src/Std/Test/LibRoute.php
@@ -1,10 +1,10 @@
 <?php
-namespace Site\Test;
+namespace Std\Test;
 
 require_once __DIR__.'/../../../autoload.php';
 
-use Site\Lib\Tester;
-use Site\Lib\Route;
+use Std\Lib\Tester;
+use Std\Lib\Route;
 
 $test = new Tester([
   'colorOutput' => true,
@@ -25,7 +25,7 @@ $test->describe('ルート', function($test): void {
       [
         'method' => 'GET',
         'path' => 'about',
-        'class' => 'Site\Test\Webpage@about',
+        'class' => 'Std\Test\Webpage@about',
         'params' => [],
       ]
     ];
diff --git a/tester.php b/tester.php
index 8ec4d4a..c5b82cd 100644
--- a/tester.php
+++ b/tester.php
@@ -8,15 +8,17 @@ if (!CURL_ENABLED) define('ACTIVITYPUB_ENABLED', false);
 mb_internal_encoding('UTF-8');
 header('Content-Type: text/plain; charset=UTF-8');
 
-$testDir = ROOT.'/src/Site/Test';
-$testFiles = glob($testDir.'/*.php');
+$testDirs = [ROOT.'/src/Site/Test', ROOT.'/src/Std/Test'];
+$testFiles = [];
+foreach ($testDirs as $d) $testFiles[] = glob($d.'/*.php');
+$testFiles = array_merge(...$testFiles);
 
 if (empty($testFiles)) {
-  echo "テストファイルは{$testDir}にありません\n";
+  echo "テストファイルではありません\n";
   exit(1);
 }
 
-echo "{$testDir}にある".count($testFiles)."個テストファイルを実行中:\n";
+echo count($testFiles)."個テストファイルを実行中:\n";
 echo "------------------------------------------------\n";
 
 $totalFiles = 0;
diff --git a/util.php b/util.php
index 4009de9..32fbda7 100644
--- a/util.php
+++ b/util.php
@@ -384,8 +384,8 @@ function countmatch(string $str): bool {
   return $len == $sum;
 }
 
-function getImageInfo(string $url): \Site\Lib\Image {
-  $img = new \Site\Lib\Image($url);
+function getImageInfo(string $url): \Std\Lib\Image {
+  $img = new \Std\Lib\Image($url);
   return $img;
 }