diff --git a/.ci/generateIndex.py b/.ci/generateIndex.py
index bb89738881c974bef2b2bfa65fb866afa410e958..f87df22d676cfd4b603d4124dd8d82ac4238ba04 100644
--- a/.ci/generateIndex.py
+++ b/.ci/generateIndex.py
@@ -1,6 +1,7 @@
 import os, re
 from os import path
 from natsort import natsorted
+from pathlib import Path
 
 def line_prepender(filename, line):
     with open(filename, 'r+') as f:
@@ -100,6 +101,7 @@ sections = natsorted(sections)
 # Index contains the generated content, init it with an empty container
 index = ''
 index += '\n<div class="index-box-container">\n'
+whiteList = ''
 
 localIndexArr = [[]] * len(sections)
 for folder in cardDirs:
@@ -157,6 +159,12 @@ for folder in cardDirs:
                                 header += "  - /" + folder + "/cards/" + shortcut + "\n"
                                 header += "---"
 
+                                # add autogenerated links to whitelist
+                                whiteList += permalink + "\n"
+                                whiteList += "/?" + shortcut + "\n"
+                                whiteList += "/cards/" +shortcut + "\n"
+                                whiteList += "/" + folder + "/cards/" + shortcut + "\n"
+
                                 # add the header properly speaking
                                 line_prepender(fileName, header)
 
@@ -197,7 +205,7 @@ for s in sections:
     index += build_section_end()
     k += 1
 
-# Close the container
+# close the container
 index += "\n</div>"
 
 ## add link to return to main index
@@ -226,3 +234,13 @@ with open(indexFile, 'w') as file:
   file.write(filedata)
 
 print("\n > New index generated and saved in " + indexFile)
+
+# write link whitelist out
+whiteListFile = ".ci/whitelist.txt"
+if Path(whiteListFile).exists():
+    with open(whiteListFile, 'r') as file :
+        for line in file:
+            whiteList += line
+
+with open(whiteListFile, 'w') as file:
+    file.write(whiteList)
diff --git a/.ci/whitelist.txt b/.ci/whitelist.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e8c5f36a51e2cf09b564f124b859e261c4fdb4f6
--- /dev/null
+++ b/.ci/whitelist.txt
@@ -0,0 +1,10 @@
+/privacy-policy
+/search
+https://www.dev47apps.com/
+https://www.dev47apps.com/droidcam/connect/
+https://cerbere.uni.lu/
+http://iptel.uni.lux/
+javascript:%20showBanner();
+javascript:showBanner();
+media/7zip-encryption-windows.mp4?width=400
+media/Get_MD5_checksum_windows.mp4
diff --git a/.gitignore b/.gitignore
index 24e97b2450d6e089037996e949aa224e4bd47ba1..ee90ec62014309f9fefc5427cd6c13b8cbb8f057 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,4 +42,6 @@ handbook/
 internal/handbook
 internal/handbook-additional
 internal/handbook-annexes
-!internal/covid-19/exit-strategy/*.pdf
\ No newline at end of file
+!internal/covid-19/exit-strategy/*.pdf
+checkFolder
+.cache/
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8514c7eff6724375a8207e186c33984edb508a67..89e70d8f57f72c8a1a7c6d91a5f6cec31ad1e908 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,10 @@
+
+
 stages:
   - prepare
   - save
   - build
+  - check
   - generate
   - deploy
   - trigger
@@ -26,6 +29,7 @@ prepare:index:
     - python .ci/generateIndex.py
     - mkdir .tmp
     - cp cards.md .tmp/.
+    - cp .ci/whitelist.txt .tmp/.
   artifacts:
     expire_in: 1 day
     paths:
@@ -77,27 +81,49 @@ build:pages:
     expire_in: 1 day
     paths:
       - build
+      - .tmp
   rules:
     - if: $CI_COMMIT_REF_NAME
-    - if: $CI_MERGE_REQUEST_ID
   before_script:
     - apt-get -qq update
     - apt-get install -y -qq git-lfs
     - gem install bundler:$BUNDLER_VERSION && bundle install
   script:
     # Generate the configuration for forks (will use Gitlab Pages on personal namespaces)
-    - 'echo "url: https://$CI_PROJECT_NAMESPACE.$CI_PAGES_DOMAIN" >> .ci/_config_gitlab_pages.yml'
-    - 'echo "baseurl: /$CI_PROJECT_NAME" >> .ci/_config_gitlab_pages.yml'
-
-    # If there is no config for the current branch, use the one for Gitlab Pages
-    - 'if [ ! -f ".ci/_config_$CI_COMMIT_REF_NAME.yml" ]; then mv .ci/_config_gitlab_pages.yml .ci/_config_$CI_COMMIT_REF_NAME.yml; fi'
-
+    - |
+      if [ $CI_MERGE_REQUEST_ID ]; then
+          export CI_COMMIT_REF_NAME="develop";
+      else
+          echo "url: https://$CI_PROJECT_NAMESPACE.$CI_PAGES_DOMAIN" >> .ci/_config_gitlab_pages.yml;
+          echo "baseurl: /$CI_PROJECT_NAME" >> .ci/_config_gitlab_pages.yml;
+          # If there is no config for the current branch, use the one for Gitlab Pages
+          if [ ! -f ".ci/_config_$CI_COMMIT_REF_NAME.yml" ]; then
+              mv .ci/_config_gitlab_pages.yml .ci/_config_$CI_COMMIT_REF_NAME.yml;
+          fi
+      fi
     # Display, which configuration is used
-    - 'echo "Configuration: " && cat ".ci/_config_$CI_COMMIT_REF_NAME.yml"'
-
+    - |
+      echo "Configuration: " && cat ".ci/_config_$CI_COMMIT_REF_NAME.yml"
     # Run Jekyll with custom configuration
     - bundle exec jekyll build -d build --config "_config.yml,.ci/_config_$CI_COMMIT_REF_NAME.yml"
 
+# check
+# ------------------------------------------------------------------------------------
+
+check:links:
+   stage: check
+   image: $CI_REGISTRY/r3/apps/tailorbird/linkchecker
+   rules:
+     - if: $CI_COMMIT_REF_NAME
+     - if: $CI_MERGE_REQUEST_ID
+   allow_failure: true
+   before_script:
+     - cp .tmp/whitelist.txt build/.
+     - cp -r build /check
+     - cd /
+   script:
+     - python link_check.py
+
 # generate
 # ------------------------------------------------------------------------------------
 
@@ -163,4 +189,4 @@ trigger:
   tags:
     - privileged
   script:
-    - curl --silent --output /dev/null -X POST -F token=$INTERNAL_TRIGGER_TOKEN -F ref=$CI_COMMIT_BRANCH $INTERNAL_REPO
\ No newline at end of file
+    - curl --silent --output /dev/null -X POST -F token=$INTERNAL_TRIGGER_TOKEN -F ref=$CI_COMMIT_BRANCH $INTERNAL_REPO
diff --git a/_config.yml b/_config.yml
index 27d218ebe8f98121cf51c9a39062bd4283987d52..3ace4007ed53c3ebc905d5e88b0b188a01102fc5 100644
--- a/_config.yml
+++ b/_config.yml
@@ -19,8 +19,8 @@ description: >- # this means to ignore newlines until "baseurl:"
   This page is an index for lab cards  that are intended to provide practical guidance  in  implementing Data Management, Data Protection and IT setup.
 
 # URL settings (the most difficult part, please refer to the guide)
-baseurl: "/"  # the subpath of your site, e.g. /gitlab-repository-name
-url: "https://localhost"  # the base hostname & protocol for your site, e.g. http://gitlab-namespace-name.pages.uni.lu/
+baseurl: "/howto-cards"  # the subpath of your site, e.g. /gitlab-repository-name
+url: "https://howto.lcsb.uni.lu"  # the base hostname & protocol for your site, e.g. http://gitlab-namespace-name.pages.uni.lu/
 
 # Banner settings
 banner: howto-card  # When you have custom images, change this setting's value to the name of the folder containing them
diff --git a/external/access/lums-passwords/lums-passwords.md b/external/access/lums-passwords/lums-passwords.md
index e5a182821fc681d627d3d309045a3a558f1950ac..c46fd79db993f044d17b5cda4dc6bc37898901b6 100644
--- a/external/access/lums-passwords/lums-passwords.md
+++ b/external/access/lums-passwords/lums-passwords.md
@@ -31,7 +31,7 @@ In case you are not a member of the university, please ask your collaborator at
 
 ## (Re-)Activating LUMS account upon receiving credentials or after password reset
 
-The password you will receive from the system administrators is temporary and **it will expire after one month**, so you have to reset it as soon as possible. It is usually sent as a link to [PrivateBin](https://howto.lcsb.uni.lu/?passwords). **This link is valid for one week and is deleted after you see it once**, thus you need to keep it open until you have followed these steps to reset your password:
+The password you will receive from the system administrators is temporary and **it will expire after one month**, so you have to reset it as soon as possible. It is usually sent as a link to [PrivateBin]({{ '/?access:passwords' | relative_url }}). **This link is valid for one week and is deleted after you see it once**, thus you need to keep it open until you have followed these steps to reset your password:
 
   1. Go to [lums.uni.lu](https://lums.uni.lu) and login with your LUMS username and the temporary password you received.<br>**NOTE:** If you experience any issues at this step, try to use *Chrome* browser for this procedure.<br/><img src="img/lums_login.png" height="200px"><br/>
   Should the login look different from this, e.g. like a pop-up, click on **x** or **Cancel** to close it.
@@ -43,7 +43,7 @@ The password you will receive from the system administrators is temporary and **
   5. Enter a new password of your choice in the field **"New Password"** and repeat the same password in the field **"Verify Password"**. This is the actual password you need to use from now on, so make sure to remember it.
   6. Click on **"Reset Password and Login"**.
 
-It is a good practice to use a password manager which will not only help you to keep track of your passwords so you will never forget it, but it will also help you to generate passwords which are very safe (see [HowTo card](https://howto.lcsb.uni.lu/?passwords) on password management for more detail).
+It is a good practice to use a password manager which will not only help you to keep track of your passwords so you will never forget it, but it will also help you to generate passwords which are very safe (see [HowTo card]({{ '/?access:passwords' | relative_url }}) on password management for more detail).
 
 ## Changing password for LUMS accounts
 If you want to change your password for the LUMS account, you can:
diff --git a/external/contribute/git-clients/git-clients.md b/external/contribute/git-clients/git-clients.md
index 2035e5d2b3b82c30204b23268608e5923ef5b72f..6a3e2dd912becd95aa93da98516ef4082daa4c0c 100644
--- a/external/contribute/git-clients/git-clients.md
+++ b/external/contribute/git-clients/git-clients.md
@@ -8,7 +8,7 @@ redirect_from:
 ---
 # Git clients
 
-Installation instructions are provided [here](https://howto.lcsb.uni.lu/?contribute:install-git).
+Installation instructions are provided [here]({{ '/?contribute:install-git' | relative_url }}).
 
 ## GUI clients
 
diff --git a/external/contribute/install-git/install-git.md b/external/contribute/install-git/install-git.md
index 106b675aea9f6055694ad1a336e72b2eb34aafeb..77f58431847ab41031ee3fb5afab2c7077c3c3f7 100644
--- a/external/contribute/install-git/install-git.md
+++ b/external/contribute/install-git/install-git.md
@@ -9,7 +9,7 @@ redirect_from:
 
 # Installation of Git
 
-Several git clients are presented [here](https://howto.lcsb.uni.lu/?contribute:git-clients).
+Several git clients are presented [here]({{ '/?contribute:git-clients' | relative_url }}).
 
 For most of the git clients, `git` is actually required to be installed on the system. You can find installers for Windows, MacOS and Linux on the [Git webpage](https://git-scm.com/downloads).
 
@@ -17,4 +17,4 @@ If you are using Visual Studio Code, and if you want to contribute to a reposito
 ```bash
 ssh git@gitlab.lcsb.uni.lu -p8022
 ```
-Then, press Enter and type `yes`. This will add the git-r3lab server to the known hosts on your system.
\ No newline at end of file
+Then, press Enter and type `yes`. This will add the Gitlab server to the known hosts on your system.
\ No newline at end of file
diff --git a/external/contribute/markdown/markdown.md b/external/contribute/markdown/markdown.md
index d4a194cde80f77927246d197a8f1da14ad6e5bf2..275f2245e39b0ae594c57b18083b3ca25f416f5f 100644
--- a/external/contribute/markdown/markdown.md
+++ b/external/contribute/markdown/markdown.md
@@ -132,4 +132,4 @@ Markdown file can be written in any text editor. There are many editors supporti
   * ByWord
 * Online
   * [GitHub pages](https://pages.github.com/)
-  * [stackedit.io](stackedit.io)
+  * [stackedit.io](https://stackedit.io)
diff --git a/external/contribute/vscode/vscode.md b/external/contribute/vscode/vscode.md
index 2e4ddf0c54f76f986ed2ed1c272bba822d3e94f2..6f8c9b2bc7c6b38a2acfb1699851b1effcab62e8 100644
--- a/external/contribute/vscode/vscode.md
+++ b/external/contribute/vscode/vscode.md
@@ -59,7 +59,7 @@ For each how-to card, it is strongly recommended to create a new branch.
 
 ## Step 4: Write the procedure in Markdown
 
-If you need more details on how to do this, refer to the [corresponding howto-card](.../write-markdown).
+If you need more details on how to do this, refer to the [corresponding howto-card](/?contribute:markdown).
 
 ## Step 5: Commit your changes
 
diff --git a/external/contribute/web-ide/web-ide.md b/external/contribute/web-ide/web-ide.md
index d15e790cd346f7b28c995d44759fb1628059cab0..123d76d71eb04e3ec28884b0a6b149cd0ee56dd1 100644
--- a/external/contribute/web-ide/web-ide.md
+++ b/external/contribute/web-ide/web-ide.md
@@ -13,7 +13,10 @@ This shows how to use Gitlab Web IDE to add or edit a howto-card:
 
 Before you start, please make sure that you have the correct access rights to edit the repository.
 
-*Note: If you do not have the rights to edit the repository, you can either ask for permissions by contacting the repository maintainers, or use your own copy of the repository (called a `fork`). Please follow [these instructions](https://docs.gitlab.com/ee/user/project/repository/forking_workflow.html#creating-a-fork) to obtain your copy (fork). You can then [mirror the fork automatically](/cards/contribute:mirror-fork) to keep in sync.*
+*Note: If you do not have the rights to edit the repository, you can either ask for permissions by contacting
+the repository maintainers, or use your own copy of the repository (called a `fork`).
+Please follow [these instructions](https://docs.gitlab.com/ee/user/project/repository/forking_workflow.html#creating-a-fork) to
+obtain your copy (fork). You can then [mirror the fork automatically]({{ '/?contribute:mirror-fork' | relative_url }}) to keep in sync.*
 
 A clear difference between editing a file in a git-tracked repository compared to a live document is that you can make an edit directly, and then suggesting the change. You can make this edit on your own version (called a `branch`), and then request to merge your changes into the main repository (through opening a `merge request`).
 
diff --git a/external/exchange-channels/asperaweb/asperaweb.md b/external/exchange-channels/asperaweb/asperaweb.md
index 30552f7efa025774a83d90e24bc300d958b3f2bb..476556e304d8a1dafd5ebf12d879db52f6ad5fe0 100644
--- a/external/exchange-channels/asperaweb/asperaweb.md
+++ b/external/exchange-channels/asperaweb/asperaweb.md
@@ -85,7 +85,7 @@ You can use the official [IBM Aspera Diagnostic Tool](https://test-connect.asper
 
 ### **Using Microsoft Edge browser**
 
-Microsoft Edge browser requires to download and install [IBM Aspera Connect for Edge](https://www.microsoft.com/store/productId/9N6XL57H8BMG).
+Microsoft Edge browser requires to download and install [IBM Aspera Connect for Edge](https://microsoftedge.microsoft.com/addons/detail/ibm-aspera-connect/kbffkbiljjejklcpnfmoiaehplhcifki).
 
 ### **UDP/TCP port and firewall**
 
diff --git a/external/exchange-channels/owncloud/owncloud.md b/external/exchange-channels/owncloud/owncloud.md
index b83f4dd30a8499034caebfe35615ab2505c6f02b..9586b802b3021ab6d43dd3e546cc133a12043465 100644
--- a/external/exchange-channels/owncloud/owncloud.md
+++ b/external/exchange-channels/owncloud/owncloud.md
@@ -44,7 +44,7 @@ When sharing research data, one should observe the following guidance using Ownc
 
 ## Installing Owncloud Desktop Client
 
-**Important:** OwnCloud is fetching information from LUMS, therefore changes like a password reset (see How-to cards [Changing password for LUMS accounts](https://howto.lcsb.uni.lu/?lums-passwords)) should be performed **only** via LUMS!
+**Important:** OwnCloud is fetching information from LUMS, therefore changes like a password reset (see How-to cards [Changing password for LUMS accounts]({{ '/?lums-passwords' | relative_url }}) should be performed **only** via LUMS!
 
 1. Please try following link to download the owncloud desktop client depending on your operating system (this is an example for Windows, similar steps for other OS) -
 
diff --git a/external/general/remote-working/remote-working.md b/external/general/remote-working/remote-working.md
index 8a5021f2c1c29317f298879564d496557b2f3e0b..0847c3fc53fc8a224f2951df6b9d8769820f21f2 100644
--- a/external/general/remote-working/remote-working.md
+++ b/external/general/remote-working/remote-working.md
@@ -11,7 +11,7 @@ redirect_from:
 In case you need to work remotely, there are several tools and services that you can use to
 stay connected and continue your work.
 
-An important reference is the [list of important links](https://howto.lcsb.uni.lu/?general:links).
+An important reference is the [list of important links]({{ '/?general:links' | relative_url }}).
 
 <p style="color:grey"><b>Note:</b> If the link does not work, please refer to the section <b>Connecting to the university network</b> since you are most probably not connected to the university internal network.</p>
 
@@ -20,12 +20,12 @@ There is also a set of [tutorials](https://remote.uni.lu/) prepared by the unive
 ## Connecting to the university network
 
 If you want to access the university infrastructure, such as the servers or storage, you can do so by connecting
-via [Virtual Private Network (VPN)](http://vpn.uni.lu). All details are given [here](https://howto.lcsb.uni.lu/?access:vpn-cerbere-access).
+via [Virtual Private Network (VPN)](http://vpn.uni.lu). All details are given [here]({{ '/?access:vpn-cerbere-access' | relative_url }}).
 
 ## Instant messaging
 
 One of the recommended tools to communicate is Slack. Each research group can sign up for free and
-create their own Slack instance on [slack.com](www.slack.com).
+create their own Slack instance on [slack.com](https://www.slack.com).
 
 ## Video conferencing and virtual meetings
 
@@ -43,7 +43,7 @@ In case you want to do video conferences, but do not have a webcam, you can use
 
 For Android phones you can use [DroidCam Wireless Webcam](http://www.dev47apps.com/). It comes with a desktop client for Windows and Linux, but also works on MacOS without the client.
 
-On Apple iPhones (and Android as well) you can use [EpocCam](http://www.kinoni.com/). This requires you to install drivers on your computer as well.
+On Apple iPhones (and Android as well) you can use [EpocCam](https://www.elgato.com/en/epoccam). This requires you to install drivers on your computer as well.
 
 Both apps support connecting to your computer either via WiFi or USB. EpocCam supports USB connection only for iOS, though. With DroidCam, you need to [install ADB, enable developer options and USB debugging](http://www.dev47apps.com/droidcam/connect/), if you want to connect your phone via USB.
 
@@ -65,8 +65,8 @@ You can use the following tools to take notes or writing manuscripts together:
 
 When on-the-go or working remotely, the [LCSB ownCloud](https://owncloud.lcsb.uni.lu) is the best way to share and work collaboratively on files.
 
-More details on how to set up ownCloud are provided [here](https://howto.lcsb.uni.lu/?exchange-channels:owncloud). You can share your files and folders
-directly with your collaborators by following [these instructions](https://howto.lcsb.uni.lu/?exchange-channels:owncloud:share-files).
+More details on how to set up ownCloud are provided [here]({{ '/?exchange-channels:owncloud' | relative_url }}). You can share your files and folders
+directly with your collaborators by following [these instructions]({{ '/?exchange-channels:owncloud:share-files' | relative_url }}).
 
 ## Development of code
 
diff --git a/external/integrity/encryption/cloud/cloud.md b/external/integrity/encryption/cloud/cloud.md
index 4b9cbad1ffcc62944c355ba6d239c2737905e936..0a5c920bb9e3cf54bc77e7e124ee81448858b2bf 100644
--- a/external/integrity/encryption/cloud/cloud.md
+++ b/external/integrity/encryption/cloud/cloud.md
@@ -40,7 +40,7 @@ Download and install `7zip` from [here](https://www.7-zip.org/)
 3. Enter a password and make a copy of the encryption password :key:
 4. Click save to save the encrypted zip file
 
-![](./media/7zip-encryption-windows.mp4?width=400)
+![](media/7zip-encryption-windows.mp4?width=400)
 
 ## Calculate the MD5 checksum with `Simple Checksum Calculator`
 
@@ -49,7 +49,7 @@ Download and install `7zip` from [here](https://www.7-zip.org/)
 3. Click on the file icon box in the left panel and load the encrypted zip file
 4. Make a copy of the MD5 checksum key :label:
 
-![](./media/Get_MD5_checksum_windows.mp4)
+![](media/Get_MD5_checksum_windows.mp4)
 
 ## Data upload
 
diff --git a/external/integrity/encryption/disk/encryption_disk.md b/external/integrity/encryption/disk/encryption_disk.md
index 119f7abf5ca76102ec5b4f98f0b9c01559ba1c4d..427bc2187132c873003cae1ede47a454e9bd4a67 100644
--- a/external/integrity/encryption/disk/encryption_disk.md
+++ b/external/integrity/encryption/disk/encryption_disk.md
@@ -9,7 +9,7 @@ redirect_from:
 # Encrypting the Startup Disk for Your Laptop/Desktop
 Encrypting an entire hard disk is an effective protective measure against computer theft and loss. In this lab card we provide instructions for switching on disk encryption on macOS and Windows platforms.
 
-**IMPORTANT NOTICE:** One important requirement of using Encryption is that you must  manage your Encryption Passwords/Keys. Failing to do so will mean **loosing your data indefinitely**. In this [link](https://howto.lcsb.uni.lu/?access:passwords) we list  tools that can be used for password management. **Please make sure you have arrangements for password management before starting the encryption of data**.
+**IMPORTANT NOTICE:** One important requirement of using Encryption is that you must  manage your Encryption Passwords/Keys. Failing to do so will mean **loosing your data indefinitely**. In this [link]({{ '/?access:passwords' | relative_url }}) we list  tools that can be used for password management. **Please make sure you have arrangements for password management before starting the encryption of data**.
 
 
 ## macOS
diff --git a/external/integrity/encryption/file/encryption_file.md b/external/integrity/encryption/file/encryption_file.md
index 4742a77e05dbe1b7db1179da8fac6ad3a90d52ce..8e8b97296f40dad585ad7d25b4635a616ebface7 100644
--- a/external/integrity/encryption/file/encryption_file.md
+++ b/external/integrity/encryption/file/encryption_file.md
@@ -9,7 +9,7 @@ redirect_from:
 # Encrypting Files and Folders
 Encryption is an effective measure to protect sensitive data. In this lab card we provide instructions for file/folder encryption on platforms commonly used by LCSB staff.
 
-**IMPORTANT NOTICE:** One important requirement of using Encryption is that you must  manage your Encryption Passwords/Keys. Failing to do so will mean **loosing your data indefinitely**. In this [link](https://howto.lcsb.uni.lu/?access:passwords) we list  tools that can be used for password management. **Please make sure you have arrangements for password management before starting the encryption of data**.
+**IMPORTANT NOTICE:** One important requirement of using Encryption is that you must  manage your Encryption Passwords/Keys. Failing to do so will mean **loosing your data indefinitely**. In this [link]({{ '/?access:passwords' | relative_url }}) we list  tools that can be used for password management. **Please make sure you have arrangements for password management before starting the encryption of data**.
 
 ## macOS
 The built-in mechanism for file-level encryption on a Mac is  Encrypted Disk Images (*.dmg* files). In order to create a disk image:
diff --git a/external/integrity/naming/file_naming.md b/external/integrity/naming/file_naming.md
index 3c96f7d00bbb537d30e178d728aacb19c209bfea..98382b7d0aa5af26a83142f27294b38d89f412b0 100644
--- a/external/integrity/naming/file_naming.md
+++ b/external/integrity/naming/file_naming.md
@@ -16,7 +16,7 @@ Good file name follows three basic principles:
 * human readable
 * plays well with default ordering
 
-If you are looking for information on how to organize and structure your folders, you may find this [dedicated card](https://howto.lcsb.uni.lu/?integrity:organization) helpful.
+If you are looking for information on how to organize and structure your folders, you may find this [dedicated card]({{ '/?integrity:organization' | relative_url }}) helpful.
 
 ## Machine readable
 
@@ -56,7 +56,7 @@ Beware of typos and avoid using multiple names varying in small ways unless it h
 ## Exploiting machine readable names
 
 You may already have a lot of files collected for your project or you have received big dataset from one of your collaborators. Then you might think about organizing and renaming them to be compliant with your new or existing naming policy.
-If the names are consistent and you don't want to loose time renaming them by hand, you may try to use dedicated tools (e.g. [PSRenamer](https://www.powersurgepub.com/products/psrenamer/index.html)) or simple commands in your command line (**rename** for Mac and Linux, **ren** for Windows).
+If the names are consistent and you don't want to loose time renaming them by hand, you may try to use dedicated tools (e.g. [PSRenamer](https://github.com/hbowie/psrenamer) or simple commands in your command line (**rename** for Mac and Linux, **ren** for Windows).
 
 Once your skills develop, you will be able to use machines and machine readable file names to perform advanced operations on them, e.g. search using regular expression.
 Imagine folder with thousands of files. Running simple R command
diff --git a/external/integrity/organization/organization.md b/external/integrity/organization/organization.md
index ff4f1f963edee94b71b94cc2eb0eec814aa6b14e..edf88ce82e12c1aee22fa8b12eb515c9022cecf5 100644
--- a/external/integrity/organization/organization.md
+++ b/external/integrity/organization/organization.md
@@ -21,7 +21,7 @@ able to find back the files easily.
 A key rule is to name the folders with straightforward but explicit names, and to include the decision tree of where to put a given file inside the folder structure. In fact, the directory tree should in some sense
 reflect the decision tree.
 
-More details on naming files and folders are provided in the dedicated [file naming card](https://howto.lcsb.uni.lu/?integrity:naming).
+More details on naming files and folders are provided in the dedicated [file naming card]({{ '/?integrity:naming' | relative_url }}).
 
 ## Suggestions
 
diff --git a/external/integrity/spreadsheets/spreadsheets.md b/external/integrity/spreadsheets/spreadsheets.md
index c5146a650fdabec45bf6691cd9169ca7be763bf8..33c3883b1c5da09b3057be915ee82420f70c027d 100644
--- a/external/integrity/spreadsheets/spreadsheets.md
+++ b/external/integrity/spreadsheets/spreadsheets.md
@@ -42,7 +42,7 @@ For reproducibility purposes, the collected data should be always exported from
 
 ### Table
 
-- Keep header column names machine readable. You can follow the same best practices as for file naming (see our [Card on file naming](../naming/file_naming.md)).
+- Keep header column names machine readable. You can follow the same best practices as for file naming (see our [Card on file naming]({{ '/?integrity:naming' | relative_url }})).
 - Keep values in columns atomic.
 - Use primary keys - values in one particular column should be unique for the whole table. This will allow you to create unique references pointing to one and only one observation/record.
 - Do not insert empty rows or columns which would split the table in two.