diff --git a/blackout/blackout.php b/blackout/blackout.php
index 834956114..e629b7a38 100644
--- a/blackout/blackout.php
+++ b/blackout/blackout.php
@@ -4,7 +4,7 @@
  * Description: Blackout your ~friendica node during a given period, requires PHP >= 5.3
  * License: MIT
  * Version: 1.0
- * Author: Tobias Diekershoff <https://diekershoff.homeunix.net/friendika/~tobias>
+ * Author: Tobias Diekershoff <https://f.diekershoff.de/~tobias>
  *
  * About
  * =====
diff --git a/impressum/impressum.php b/impressum/impressum.php
index 3c1106c9a..8bcc8b7dd 100755
--- a/impressum/impressum.php
+++ b/impressum/impressum.php
@@ -3,7 +3,7 @@
  * Name: Impressum
  * Description: Plugin to add contact information to the about page (/friendica)
  * Version: 1.2
- * Author: Tobias Diekershoff <http://diekershoff.homeunix.net/friendika/profile/tobias>
+ * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
  * License: 3-clause BSD license
  */
 
diff --git a/mathjax/mathjax.php b/mathjax/mathjax.php
index ccc6ca0c0..d97e96496 100644
--- a/mathjax/mathjax.php
+++ b/mathjax/mathjax.php
@@ -4,7 +4,7 @@
  * Name: MathJax
  * Description: Addon for Friendika to include MathJax (LaTeX math syntax)
  * Version: 1.0
- * Author: Tobias Diekershoff <http://diekershoff.homeunix.net/friendika/profile/tobias>
+ * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
  * License: 3-clause BSD license
  */
 
diff --git a/piwik/piwik.php b/piwik/piwik.php
index 3501b2c8c..a2086bdcb 100755
--- a/piwik/piwik.php
+++ b/piwik/piwik.php
@@ -3,7 +3,7 @@
  * Name: Piwik Analytics
  * Description: Piwik Analytics Plugin for Friendica
  * Version: 1.1
- * Author: Tobias Diekershoff <http://diekershoff.homeunix.net/friendika/profile/tobias>
+ * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
  * Author: Klaus Weidenbach
  */
 
@@ -26,8 +26,6 @@
  *     installation has. Alter the baseurl to fit your needs, don't care
  *     about http/https but beware to put the trailing / at the end of your
  *     setting.
- *
- *     Documentation see http://diekershoff.homeunix.net/redmine/wiki/friendikaplugin/Piwik_Plugin
  */
 
 function piwik_install() {
diff --git a/statusnet/statusnet.php b/statusnet/statusnet.php
index 3a5ceb8a1..eeca3d607 100755
--- a/statusnet/statusnet.php
+++ b/statusnet/statusnet.php
@@ -3,7 +3,7 @@
  * Name: StatusNet Connector
  * Description: Relay public postings to a connected StatusNet account
  * Version: 1.0.5
- * Author: Tobias Diekershoff <http://diekershoff.homeunix.net/friendika/profile/tobias>
+ * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
  * Author: Michael Vogel <https://pirati.ca/profile/heluecht>
  *
  * Copyright (c) 2011-2013 Tobias Diekershoff, Michael Vogel
diff --git a/twitter/twitter.php b/twitter/twitter.php
index bde494e1f..8b4dec996 100755
--- a/twitter/twitter.php
+++ b/twitter/twitter.php
@@ -3,7 +3,7 @@
  * Name: Twitter Connector
  * Description: Relay public postings to a connected Twitter account
  * Version: 1.0.4
- * Author: Tobias Diekershoff <http://diekershoff.homeunix.net/friendika/profile/tobias>
+ * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
  * Author: Michael Vogel <https://pirati.ca/profile/heluecht>
  *
  * Copyright (c) 2011-2013 Tobias Diekershoff, Michael Vogel
@@ -58,8 +58,6 @@
  *     from "Settings -> Plugin Settings".
  *
  *     Requirements: PHP5, curl [Slinky library]
- *
- *     Documentation: http://diekershoff.homeunix.net/redmine/wiki/friendikaplugin/Twitter_Plugin
  */
 
 define('TWITTER_DEFAULT_POLL_INTERVAL', 5); // given in minutes
diff --git a/webrtc/webrtc.php b/webrtc/webrtc.php
index 7a4e8cf77..e0d333930 100644
--- a/webrtc/webrtc.php
+++ b/webrtc/webrtc.php
@@ -3,8 +3,8 @@
  * Name: WebRTC Application
  * Description: add a webrtc instance for video/audio
  * Version: 1.0
- * Author: stephen mahood <https://friends.mayfirst.org/profile/marxistvegan>
- * Author: Tobias Diekershoff <http://diekershoff.homeunix.net/friendica/profile/tobias>
+ * Author: Stephen Mahood <https://friends.mayfirst.org/profile/marxistvegan>
+ * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
  */
 
 function webrtc_install() {