diff --git a/in/en/index.html b/in/en/index.html
index 562690c..6bf5803 100644
--- a/in/en/index.html
+++ b/in/en/index.html
@@ -42,12 +42,12 @@
 <tr>
 <th><a href="../en">English</a></th>
 <td class="logo"><img class="logo" src="../img/en.png" alt="American flag"></td>
-<td>C2</td>
+<td><a href="https://en.wikipedia.org/wiki/Common_European_Framework_of_Reference_for_Languages#Common_reference_levels">C 2</a></td>
 </tr>
 <tr>
 <th><a href="../fr">French</a></th>
 <td class="logo"><img class="logo" src="../img/fr.png" alt="French flag"></td>
-<td>C2</td>
+<td><a href="https://en.wikipedia.org/wiki/Common_European_Framework_of_Reference_for_Languages#Common_reference_levels">C 2</a></td>
 </tr>
 </tbody></table>
 </section>
@@ -86,9 +86,9 @@
 <a href="https://keyoxide.org/08EDA7006234A0EB29A3A8471DBD5EC4BADA5579">OpenPGP</a></td>
 </tr>
 <tr>
-<th scope="row"><a href="https://keys.openpgp.org/about">OpenPGP</a></th>
+<th scope="row"><a href="https://en.wikipedia.org/wiki/OpenPGP">OpenPGP</a></th>
 <td class="logo"><img class="logo" src="../img/openpgp.svg" alt="OpenPGP logo"></td>
-<td><a href="https://keys.openpgp.org/search?q=08EDA7006234A0EB29A3A8471DBD5EC4BADA5579">1DBD 5EC4<br>BADA 5579</a></td>
+<td><a href="https://keys.openpgp.org/search?q=08EDA7006234A0EB29A3A8471DBD5EC4BADA5579">keys.openpgp.org</a></td>
 </tr>
 </tbody></table>
 
@@ -229,7 +229,7 @@
 </article>
 
 <article>
-<h3>Operating Systems (Linux)</h3>
+<h3>Operating Systems (<a href="https://en.wikipedia.org/wiki/Linux">Linux</a>)</h3>
 <ul><li>
 <a href="https://en.wikipedia.org/wiki/Debian">Debian</a>,
 <a href="https://en.wikipedia.org/wiki/Linux_Mint">Mint</a>,
diff --git a/in/fr/index.html b/in/fr/index.html
index 7920cab..49ecd7d 100644
--- a/in/fr/index.html
+++ b/in/fr/index.html
@@ -42,12 +42,12 @@
 <tr>
 <th><a href="../en">Anglais</a></th>
 <td class="logo"><img class="logo" src="../img/en.png" alt="Drapeau américain"></td>
-<td>C2</td>
+<td><a href="https://fr.wikipedia.org/wiki/Cadre_européen_commun_de_référence_pour_les_langues#Échelle_globale">C 2</a></td>
 </tr>
 <tr>
 <th><a href="../fr">Français</a></th>
 <td class="logo"><img class="logo" src="../img/fr.png" alt="Drapeau français"></td>
-<td>C2</td>
+<td><a href="https://fr.wikipedia.org/wiki/Cadre_européen_commun_de_référence_pour_les_langues#Échelle_globale">C 2</a></td>
 </tr>
 </tbody></table>
 </section>
@@ -86,9 +86,9 @@
 <a href="https://keyoxide.org/08EDA7006234A0EB29A3A8471DBD5EC4BADA5579">OpenPGP</a></td>
 </tr>
 <tr>
-<th scope="row"><a href="https://keys.openpgp.org/about">OpenPGP</a></th>
+<th scope="row"><a href="https://fr.wikipedia.org/wiki/OpenPGP">OpenPGP</a></th>
 <td class="logo"><img class="logo" src="../img/openpgp.svg" alt="Logo pour OpenPGP"></td>
-<td><a href="https://keys.openpgp.org/search?q=08EDA7006234A0EB29A3A8471DBD5EC4BADA5579">1DBD 5EC4<br>BADA 5579</a></td>
+<td><a href="https://keys.openpgp.org/search?q=08EDA7006234A0EB29A3A8471DBD5EC4BADA5579">keys.openpgp.org</a></td>
 </tr>
 </tbody></table>
 
@@ -229,7 +229,7 @@
 </article>
 
 <article>
-<h3>Systèmes d’Exploitation (Linux)</h3>
+<h3>Systèmes d’Exploitation (<a href="https://fr.wikipedia.org/wiki/Linux">Linux</a>)</h3>
 <ul><li>
 <a href="https://fr.wikipedia.org/wiki/Debian">Debian</a>,
 <a href="https://fr.wikipedia.org/wiki/Linux_Mint">Mint</a>,