diff --git a/mod/ping.php b/mod/ping.php
index 81aa9ec620..1afab5f726 100644
--- a/mod/ping.php
+++ b/mod/ping.php
@@ -283,7 +283,7 @@ function ping_init(App $a)
 				foreach ($regs as $reg) {
 					$notif = [
 						'id'      => 0,
-						'href'    => DI::baseUrl() . '/admin/users/pending',
+						'href'    => DI::baseUrl()->get(true) . '/admin/users/pending',
 						'name'    => $reg['name'],
 						'url'     => $reg['url'],
 						'photo'   => $reg['micro'],
@@ -296,7 +296,7 @@ function ping_init(App $a)
 			} else {
 				$notif = [
 					'id'      => 0,
-					'href'    => DI::baseUrl() . '/admin/users/pending',
+					'href'    => DI::baseUrl()->get(true) . '/admin/users/pending',
 					'name'    => $regs[0]['name'],
 					'url'     => $regs[0]['url'],
 					'photo'   => $regs[0]['micro'],
diff --git a/src/Module/Admin/Logs/View.php b/src/Module/Admin/Logs/View.php
index 1104212f6b..d56e020615 100644
--- a/src/Module/Admin/Logs/View.php
+++ b/src/Module/Admin/Logs/View.php
@@ -21,9 +21,9 @@
 
 namespace Friendica\Module\Admin\Logs;
 
-use Friendica\DI;
 use Friendica\Core\Renderer;
 use Friendica\Core\Theme;
+use Friendica\DI;
 use Friendica\Module\BaseAdmin;
 use Psr\Log\LogLevel;
 
@@ -80,9 +80,10 @@ class View extends BaseAdmin
 			}
 		}
 		return Renderer::replaceMacros($t, [
-			'$title' => DI::l10n()->t('Administration'),
-			'$page'  => DI::l10n()->t('View Logs'),
-			'$l10n'  => [
+			'$baseurl'       => DI::baseUrl()->get(true),
+			'$title'         => DI::l10n()->t('Administration'),
+			'$page'          => DI::l10n()->t('View Logs'),
+			'$l10n'          => [
 				'Search'                => DI::l10n()->t('Search'),
 				'Search_in_logs'        => DI::l10n()->t('Search in logs'),
 				'Show_all'              => DI::l10n()->t('Show all'),
diff --git a/src/Module/Admin/Site.php b/src/Module/Admin/Site.php
index 0f440f253a..4c5c38ea54 100644
--- a/src/Module/Admin/Site.php
+++ b/src/Module/Admin/Site.php
@@ -526,7 +526,7 @@ class Site extends BaseAdmin
 			'$touch_icon'       => ['touch_icon', DI::l10n()->t('Touch icon'), DI::config()->get('system', 'touch_icon'), DI::l10n()->t('Link to an icon that will be used for tablets and mobiles.')],
 			'$additional_info'  => ['additional_info', DI::l10n()->t('Additional Info'), $additional_info, DI::l10n()->t('For public servers: you can add additional information here that will be listed at %s/servers.', Search::getGlobalDirectory())],
 			'$language'         => ['language', DI::l10n()->t('System language'), DI::config()->get('system', 'language'), '', $lang_choices],
-			'$theme'            => ['theme', DI::l10n()->t('System theme'), DI::config()->get('system', 'theme'), DI::l10n()->t('Default system theme - may be over-ridden by user profiles - <a href="/admin/themes" id="cnftheme">Change default theme settings</a>'), $theme_choices],
+			'$theme'            => ['theme', DI::l10n()->t('System theme'), DI::config()->get('system', 'theme'), DI::l10n()->t('Default system theme - may be over-ridden by user profiles - <a href="%s" id="cnftheme">Change default theme settings</a>', DI::baseUrl()->get(true) . '/admin/themes'), $theme_choices],
 			'$theme_mobile'     => ['theme_mobile', DI::l10n()->t('Mobile system theme'), DI::config()->get('system', 'mobile-theme', '---'), DI::l10n()->t('Theme for mobile devices'), $theme_choices_mobile],
 			'$ssl_policy'       => ['ssl_policy', DI::l10n()->t('SSL link policy'), DI::config()->get('system', 'ssl_policy'), DI::l10n()->t('Determines whether generated links should be forced to use SSL'), $ssl_choices],
 			'$force_ssl'        => ['force_ssl', DI::l10n()->t('Force SSL'), DI::config()->get('system', 'force_ssl'), DI::l10n()->t('Force all Non-SSL requests to SSL - Attention: on some systems it could lead to endless loops.')],
diff --git a/src/Module/Admin/Themes/Details.php b/src/Module/Admin/Themes/Details.php
index 25724dc728..dc6bf58184 100644
--- a/src/Module/Admin/Themes/Details.php
+++ b/src/Module/Admin/Themes/Details.php
@@ -76,7 +76,7 @@ class Details extends BaseAdmin
 			require_once "view/theme/$theme/config.php";
 
 			if (function_exists('theme_admin')) {
-				$admin_form = '<iframe onload="resizeIframe(this);" src="/admin/themes/' . $theme . '/embed?mode=minimal" width="100%" height="600px" frameborder="no"></iframe>';
+				$admin_form = '<iframe onload="resizeIframe(this);" src="' . DI::baseUrl()->get(true) . '/admin/themes/' . $theme . '/embed?mode=minimal" width="100%" height="600px" frameborder="no"></iframe>';
 			}
 		}
 
diff --git a/src/Module/Admin/Themes/Embed.php b/src/Module/Admin/Themes/Embed.php
index 132a35b67b..439e78e642 100644
--- a/src/Module/Admin/Themes/Embed.php
+++ b/src/Module/Admin/Themes/Embed.php
@@ -24,6 +24,7 @@ namespace Friendica\Module\Admin\Themes;
 use Friendica\App;
 use Friendica\Core\L10n;
 use Friendica\Core\Renderer;
+use Friendica\DI;
 use Friendica\Module\BaseAdmin;
 use Friendica\Module\Response;
 use Friendica\Util\Profiler;
@@ -94,7 +95,7 @@ class Embed extends BaseAdmin
 
 		$t = Renderer::getMarkupTemplate('admin/addons/embed.tpl');
 		return Renderer::replaceMacros($t, [
-			'$action' => '/admin/themes/' . $theme . '/embed?mode=minimal',
+			'$action' => DI::baseUrl()->get(true) . '/admin/themes/' . $theme . '/embed?mode=minimal',
 			'$form' => $admin_form,
 			'$form_security_token' => self::getFormSecurityToken("admin_theme_settings"),
 		]);
diff --git a/src/Module/Admin/Themes/Index.php b/src/Module/Admin/Themes/Index.php
index 9677ce30f2..cf0ddcfc6e 100644
--- a/src/Module/Admin/Themes/Index.php
+++ b/src/Module/Admin/Themes/Index.php
@@ -37,7 +37,7 @@ class Index extends BaseAdmin
 
 		// reload active themes
 		if (!empty($_GET['action'])) {
-			self::checkFormSecurityTokenRedirectOnError(DI::baseUrl()->get() . '/admin/themes', 'admin_themes', 't');
+			self::checkFormSecurityTokenRedirectOnError('/admin/themes', 'admin_themes', 't');
 
 			switch ($_GET['action']) {
 				case 'reload':
diff --git a/src/Module/Register.php b/src/Module/Register.php
index d415abf74c..9c09baef82 100644
--- a/src/Module/Register.php
+++ b/src/Module/Register.php
@@ -380,11 +380,11 @@ class Register extends BaseModule
 					'type'         => Model\Notification\Type::SYSTEM,
 					'event'        => 'SYSTEM_REGISTER_REQUEST',
 					'uid'          => $admin['uid'],
-					'link'         => $base_url . '/admin/users/',
+					'link'         => DI::baseUrl()->get(true) . '/admin/users/',
 					'source_name'  => $user['username'],
 					'source_mail'  => $user['email'],
 					'source_nick'  => $user['nickname'],
-					'source_link'  => $base_url . '/admin/users/',
+					'source_link'  => DI::baseUrl()->get(true) . '/admin/users/',
 					'source_photo' => User::getAvatarUrl($user, Proxy::SIZE_THUMB),
 					'show_in_notification_page' => false
 				]);
diff --git a/view/templates/admin/logs/view.tpl b/view/templates/admin/logs/view.tpl
index 97b5c0625f..50e166f1ba 100644
--- a/view/templates/admin/logs/view.tpl
+++ b/view/templates/admin/logs/view.tpl
@@ -11,7 +11,7 @@
 			<p>
 				<input type="search" name="q" value="{{$q}}" placeholder="{{$l10n.Search}}"></input>
 				<input type="submit" value="{{$l10n.Search}}">
-				<a href="/admin/logs/view">{{$l10n.Show_all}}</a>
+				<a href="{{$baseurl}}/admin/logs/view">{{$l10n.Show_all}}</a>
 			</p>
 
 
diff --git a/view/templates/admin/summary.tpl b/view/templates/admin/summary.tpl
index 121eb833b9..2421658d6c 100644
--- a/view/templates/admin/summary.tpl
+++ b/view/templates/admin/summary.tpl
@@ -34,7 +34,7 @@
 		<dt>{{$addons.0}}</dt>
 		
 		{{foreach $addons.1 as $p}}
-			<dd><a href="/admin/addons/{{$p}}/">{{$p}}</a></dd>
+			<dd><a href="{{$baseurl}}/admin/addons/{{$p}}/">{{$p}}</a></dd>
 		{{/foreach}}
 		
 	</dl>
diff --git a/view/theme/frio/templates/admin/logs/view.tpl b/view/theme/frio/templates/admin/logs/view.tpl
index cab8882683..d47c0361de 100755
--- a/view/theme/frio/templates/admin/logs/view.tpl
+++ b/view/theme/frio/templates/admin/logs/view.tpl
@@ -18,7 +18,7 @@
 				</div>
 			</div>
 			<div class="xol-xs-4">
-				<a href="/admin/logs/view" class="btn btn-default">{{$l10n.Show_all}}</a>
+				<a href="{{$baseurl}}/admin/logs/view" class="btn btn-default">{{$l10n.Show_all}}</a>
 			</div>
 		</form>
 
@@ -33,7 +33,7 @@
 						<ul class="dropdown-menu" aria-labelledby="level">
 							{{foreach $filtersvalues.level as $v }}
 								<li {{if $filters.level == $v}}class="active"{{/if}}>
-									<a href="/admin/logs/view?level={{$v}}" data-filter="level" data-filter-value="{{$v}}">
+									<a href="{{$baseurl}}/admin/logs/view?level={{$v}}" data-filter="level" data-filter-value="{{$v}}">
 										{{if $v == ""}}{{$l10n.ALL}}{{/if}}{{$v}}
 									</a>
 								</li>
@@ -47,7 +47,7 @@
 						<ul class="dropdown-menu" aria-labelledby="context">
 							{{foreach $filtersvalues.context as $v }}
 								<li {{if $filters.context == $v}}class="active"{{/if}}>
-									<a href="/admin/logs/view?context={{$v}}" data-filter="context" data-filter-value="{{$v}}">
+									<a href="{{$baseurl}}/admin/logs/view?context={{$v}}" data-filter="context" data-filter-value="{{$v}}">
 										{{if $v == ""}}{{$l10n.ALL}}{{/if}}{{$v}}
 									</a>
 								</li>
diff --git a/view/theme/frio/templates/admin/summary.tpl b/view/theme/frio/templates/admin/summary.tpl
index 0fd599b051..6f5645dca7 100644
--- a/view/theme/frio/templates/admin/summary.tpl
+++ b/view/theme/frio/templates/admin/summary.tpl
@@ -46,7 +46,7 @@
 			<div class="col-lg-4 col-md-4 col-sm-4 col-xs-12 admin-summary-label-name text-muted">{{$addons.0}}</div>
 			<div class="col-lg-8 col-md-8 col-sm-8 col-xs-12 admin-summary-entry">
 				{{foreach $addons.1 as $p}}
-				<a href="/admin/addons/{{$p}}/">{{$p}}</a><br>
+				<a href="{{$baseurl}}/admin/addons/{{$p}}/">{{$p}}</a><br>
 				{{/foreach}}
 			</div>
 		</div>