diff --git a/config/kbin_routes/ajax.yaml b/config/kbin_routes/ajax.yaml
index 1e29cc2d0..642087898 100644
--- a/config/kbin_routes/ajax.yaml
+++ b/config/kbin_routes/ajax.yaml
@@ -21,30 +21,40 @@ ajax_fetch_post_comments:
   defaults: { _format: json }
   path: /ajax/fetch_post_comments/{id}
   methods: [GET]
+  requirements:
+    id: \d+
 
 ajax_fetch_entry:
   controller: App\Controller\AjaxController::fetchEntry
   defaults: { _format: json }
   path: /ajax/fetch_entry/{id}
   methods: [GET]
+  requirements:
+    id: \d+
 
 ajax_fetch_entry_comment:
   controller: App\Controller\AjaxController::fetchEntryComment
   defaults: { _format: json }
   path: /ajax/fetch_entry_comment/{id}
   methods: [GET]
+  requirements:
+    id: \d+
 
 ajax_fetch_post:
   controller: App\Controller\AjaxController::fetchPost
   defaults: { _format: json }
   path: /ajax/fetch_post/{id}
   methods: [GET]
+  requirements:
+    id: \d+
 
 ajax_fetch_post_comment:
   controller: App\Controller\AjaxController::fetchPostComment
   defaults: { _format: json }
   path: /ajax/fetch_post_comment/{id}
   methods: [GET]
+  requirements:
+    id: \d+
 
 ajax_fetch_online:
   controller: App\Controller\AjaxController::fetchOnline
diff --git a/config/kbin_routes/entry.yaml b/config/kbin_routes/entry.yaml
index c99f2eda3..ff7f63d03 100644
--- a/config/kbin_routes/entry.yaml
+++ b/config/kbin_routes/entry.yaml
@@ -3,73 +3,109 @@ entry_comment_create:
   defaults: { slug: -, parent_comment_id: null }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comment/create/{parent_comment_id}
   methods: [ GET, POST ]
+  requirements:
+    entry_id: \d+
+    parent_comment_id: \d+
 
 entry_comment_view:
-    controller: App\Controller\Entry\Comment\EntryCommentViewController
-    defaults: { slug: -, comment_id: null }
-    path: /m/{magazine_name}/t/{entry_id}/{slug}/comment/{comment_id}
-    methods: [ GET ]
+  controller: App\Controller\Entry\Comment\EntryCommentViewController
+  defaults: { slug: -, comment_id: null }
+  path: /m/{magazine_name}/t/{entry_id}/{slug}/comment/{comment_id}
+  methods: [ GET ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_edit:
   controller: App\Controller\Entry\Comment\EntryCommentEditController
   defaults: { slug: -, }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comment/{comment_id}/edit
   methods: [ GET, POST ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_delete:
   controller: App\Controller\Entry\Comment\EntryCommentDeleteController::delete
   defaults: { slug: -, }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comments/{comment_id}/delete
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_restore:
   controller: App\Controller\Entry\Comment\EntryCommentDeleteController::restore
   defaults: { slug: -, }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comments/{comment_id}/restore
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_purge:
   controller: App\Controller\Entry\Comment\EntryCommentDeleteController::purge
   defaults: { slug: -, }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comments/{comment_id}/purge
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_change_lang:
   controller: App\Controller\Entry\Comment\EntryCommentChangeLangController
   defaults: { slug: - }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comments/{comment_id}/change_lang
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_change_adult:
   controller: App\Controller\Entry\Comment\EntryCommentChangeAdultController
   defaults: { slug: - }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comments/{comment_id}/change_adult
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_image_delete:
   controller: App\Controller\Entry\Comment\EntryCommentDeleteImageController
   defaults: { slug: -, }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comments/{comment_id}/delete_image
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_voters:
   controller: App\Controller\Entry\Comment\EntryCommentVotersController
   defaults: { slug: -, }
-  requirements: { type: 'up' }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comment/{comment_id}/votes/{type}
   methods: [ GET ]
+  requirements:
+    type: 'up'
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_favourites:
   controller: App\Controller\Entry\Comment\EntryCommentFavouriteController
   defaults: { slug: -, }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comment/{comment_id}/favourites
   methods: [ GET ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comment_moderate:
   controller: App\Controller\Entry\Comment\EntryCommentModerateController
   defaults: { slug: -, }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/comment/{comment_id}/moderate
   methods: [ GET ]
+  requirements:
+    entry_id: \d+
+    comment_id: \d+
 
 entry_comments_front:
   controller: App\Controller\Entry\Comment\EntryCommentFrontController::front
@@ -121,24 +157,32 @@ entry_comment_vote:
   defaults: { entityClass: App\Entity\EntryComment }
   path: /ecv/{id}/{choice}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 entry_comment_report:
   controller: App\Controller\ReportController
   defaults: { entityClass: App\Entity\EntryComment }
   path: /ecr/{id}
   methods: [ GET, POST ]
+  requirements:
+    id: \d+
 
 entry_comment_favourite:
   controller: App\Controller\FavouriteController
   defaults: { entityClass: App\Entity\EntryComment }
   path: /ecf/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 entry_comment_boost:
   controller: App\Controller\BoostController
   defaults: { entityClass: App\Entity\EntryComment }
   path: /ecb/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 entry_create:
   controller: App\Controller\Entry\EntryCreateController
@@ -157,79 +201,105 @@ entry_edit:
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/edit
   methods: [ GET, POST ]
+  requirements:
+    entry_id: \d+
 
 entry_moderate:
   controller: App\Controller\Entry\EntryModerateController
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/moderate
   methods: [ GET ]
+  requirements:
+    entry_id: \d+
 
 entry_delete:
   controller: App\Controller\Entry\EntryDeleteController::delete
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/delete
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_restore:
   controller: App\Controller\Entry\EntryDeleteController::restore
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/restore
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_purge:
   controller: App\Controller\Entry\EntryDeleteController::purge
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/purge
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_image_delete:
   controller: App\Controller\Entry\EntryDeleteImageController
   defaults: { slug: -, }
   path: /m/{magazine_name}/e/{entry_id}/{slug}/delete_image
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_change_magazine:
   controller: App\Controller\Entry\EntryChangeMagazineController
   defaults: { slug: - }
   path: /m/{magazine_name}/e/{entry_id}/{slug}/change_magazine
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_change_lang:
   controller: App\Controller\Entry\EntryChangeLangController
   defaults: { slug: - }
   path: /m/{magazine_name}/e/{entry_id}/{slug}/change_lang
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_change_adult:
   controller: App\Controller\Entry\EntryChangeAdultController
   defaults: { slug: - }
   path: /m/{magazine_name}/e/{entry_id}/{slug}/change_adult
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_pin:
   controller: App\Controller\Entry\EntryPinController
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/pin
   methods: [ POST ]
+  requirements:
+    entry_id: \d+
 
 entry_voters:
   controller: App\Controller\Entry\EntryVotersController
   defaults: { slug: -, sortBy: hot }
-  requirements: { type: 'up' }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/votes/{type}
   methods: [ GET ]
+  requirements:
+    type: 'up'
+    entry_id: \d+
 
 entry_fav:
   controller: App\Controller\Entry\EntryFavouriteController
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/favourites
   methods: [ GET ]
+  requirements:
+    entry_id: \d+
 
 entry_tips:
   controller: App\Controller\Entry\EntryTipController
   defaults: { slug: -, sortBy: hot }
   path: /m/{magazine_name}/t/{entry_id}/{slug}/tips
   methods: [ GET ]
+  requirements:
+    entry_id: \d+
 
 entry_single:
   controller: App\Controller\Entry\EntrySingleController
@@ -238,6 +308,7 @@ entry_single:
   methods: [ GET ]
   requirements:
     sortBy: "%comment_sort_options%"
+    entry_id: \d+
 
 entry_single_comments:
   controller: App\Controller\Entry\EntrySingleController
@@ -246,27 +317,36 @@ entry_single_comments:
   methods: [ GET ]
   requirements:
     sortBy: "%comment_sort_options%"
+    entry_id: \d+
 
 entry_vote:
   controller: App\Controller\VoteController
   defaults: { entityClass: App\Entity\Entry }
   path: /ev/{id}/{choice}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 entry_report:
   controller: App\Controller\ReportController
   defaults: { entityClass: App\Entity\Entry }
   path: /er/{id}
   methods: [ GET, POST ]
+  requirements:
+    id: \d+
 
 entry_favourite:
   controller: App\Controller\FavouriteController
   defaults: { entityClass: App\Entity\Entry }
   path: /ef/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 entry_boost:
   controller: App\Controller\BoostController
   defaults: { entityClass: App\Entity\Entry }
   path: /eb/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+
diff --git a/config/kbin_routes/message.yaml b/config/kbin_routes/message.yaml
index 447b4adf5..cc6bb1e36 100644
--- a/config/kbin_routes/message.yaml
+++ b/config/kbin_routes/message.yaml
@@ -7,6 +7,8 @@ messages_single:
   controller: App\Controller\Message\MessageThreadController
   path: /profile/messages/{id}
   methods: [ GET, POST ]
+  requirements:
+    id: \d+
 
 messages_create:
   controller: App\Controller\Message\MessageCreateThreadController
diff --git a/config/kbin_routes/post.yaml b/config/kbin_routes/post.yaml
index e371ce2cc..64dc08392 100644
--- a/config/kbin_routes/post.yaml
+++ b/config/kbin_routes/post.yaml
@@ -3,108 +3,155 @@ post_comment_create:
   defaults: { slug: -, parent_comment_id: null }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{parent_comment_id}
   methods: [ GET, POST ]
+  requirements:
+    post_id: \d+
+    parent_comment_id: \d+
 
 post_comment_edit:
   controller: App\Controller\Post\Comment\PostCommentEditController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/edit
   methods: [ GET, POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_moderate:
   controller: App\Controller\Post\Comment\PostCommentModerateController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/moderate
   methods: [ GET, POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_delete:
   controller: App\Controller\Post\Comment\PostCommentDeleteController::delete
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/delete
   methods: [ POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_restore:
   controller: App\Controller\Post\Comment\PostCommentDeleteController::restore
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/restore
   methods: [ POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_purge:
   controller: App\Controller\Post\Comment\PostCommentDeleteController::purge
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/purge
   methods: [ POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_change_lang:
   controller: App\Controller\Post\Comment\PostCommentChangeLangController
   defaults: { slug: - }
   path: /m/{magazine_name}/p/{post_id}/{slug}/comments/{comment_id}/change_lang
   methods: [ POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_change_adult:
   controller: App\Controller\Post\Comment\PostCommentChangeAdultController
   defaults: { slug: - }
   path: /m/{magazine_name}/p/{post_id}/{slug}/comments/{comment_id}/change_adult
   methods: [ POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_image_delete:
   controller: App\Controller\Post\Comment\PostCommentDeleteImageController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/delete_image
   methods: [ POST ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_voters:
   controller: App\Controller\Post\Comment\PostCommentVotersController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/votes
   methods: [ GET ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_favourites:
   controller: App\Controller\Post\Comment\PostCommentFavouriteController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/reply/{comment_id}/favourites
   methods: [ GET ]
+  requirements:
+    post_id: \d+
+    comment_id: \d+
 
 post_comment_vote:
   controller: App\Controller\VoteController
   defaults: { entityClass: App\Entity\PostComment }
   path: /pcv/{id}/{choice}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 post_comment_report:
   controller: App\Controller\ReportController
   defaults: { entityClass: App\Entity\PostComment }
   path: /pcr/{id}
   methods: [ GET, POST ]
+  requirements:
+    id: \d+
 
 post_comment_favourite:
   controller: App\Controller\FavouriteController
   defaults: { entityClass: App\Entity\PostComment }
   path: /pcf/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 post_comment_boost:
   controller: App\Controller\BoostController
   defaults: { entityClass: App\Entity\PostComment }
   path: /pcb/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 post_pin:
   controller: App\Controller\Post\PostPinController
   defaults: { slug: - }
   path: /m/{magazine_name}/p/{post_id}/{slug}/pin
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_voters:
   controller: App\Controller\Post\PostVotersController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/votes
   methods: [ GET ]
+  requirements:
+    post_id: \d+
 
 post_favourites:
   controller: App\Controller\Post\PostFavouriteController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/favourites
   methods: [ GET ]
+  requirements:
+    post_id: \d+
 
 post_create:
   controller: App\Controller\Post\PostCreateController
@@ -116,54 +163,72 @@ post_edit:
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/edit
   methods: [ GET, POST ]
+  requirements:
+    post_id: \d+
 
 post_moderate:
   controller: App\Controller\Post\PostModerateController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/moderate
   methods: [ GET, POST ]
+  requirements:
+    post_id: \d+
 
 post_delete:
   controller: App\Controller\Post\PostDeleteController::delete
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/delete
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_restore:
   controller: App\Controller\Post\PostDeleteController::restore
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/restore
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_purge:
   controller: App\Controller\Post\PostDeleteController::purge
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/purge
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_image_delete:
   controller: App\Controller\Post\PostDeleteImageController
   defaults: { slug: -, }
   path: /m/{magazine_name}/p/{post_id}/{slug}/delete_image
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_change_magazine:
   controller: App\Controller\Post\PostChangeMagazineController
   defaults: { slug: - }
   path: /m/{magazine_name}/p/{post_id}/{slug}/change_magazine
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_change_lang:
   controller: App\Controller\Post\PostChangeLangController
   defaults: { slug: - }
   path: /m/{magazine_name}/p/{post_id}/{slug}/change_lang
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_change_adult:
   controller: App\Controller\Post\PostChangeAdultController
   defaults: { slug: - }
   path: /m/{magazine_name}/p/{post_id}/{slug}/change_adult
   methods: [ POST ]
+  requirements:
+    post_id: \d+
 
 post_single:
   controller: App\Controller\Post\PostSingleController
@@ -172,27 +237,36 @@ post_single:
   methods: [ GET ]
   requirements:
     sortBy: "%comment_sort_options%"
+    post_id: \d+
 
 post_vote:
   controller: App\Controller\VoteController
   defaults: { entityClass: App\Entity\Post }
   path: /pv/{id}/{choice}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 post_report:
   controller: App\Controller\ReportController
   defaults: { entityClass: App\Entity\Post }
   path: /pr/{id}
   methods: [ GET, POST ]
+  requirements:
+    id: \d+
 
 post_favourite:
   controller: App\Controller\FavouriteController
   defaults: { entityClass: App\Entity\Post }
   path: /pf/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+
 
 post_boost:
   controller: App\Controller\BoostController
   defaults: { entityClass: App\Entity\Post }
   path: /pb/{id}
   methods: [ POST ]
+  requirements:
+    id: \d+