diff --git a/css/style.css b/css/style.css
index 949b568..fff88b7 100644
--- a/css/style.css
+++ b/css/style.css
@@ -3,7 +3,7 @@
   padding: 0;
 }
   
-.td-input input[type="text"]:not(.browser-default) {
+.td-input input:not(.browser-default) {
   margin: 0;
 }
 
diff --git a/js/script.js b/js/script.js
index 3f44238..36581cb 100644
--- a/js/script.js
+++ b/js/script.js
@@ -5,19 +5,28 @@ function showCard(card, button) {
 }
 
 function updateHost(input) {
-    input.parentElement.classList.remove("ok")
-    input.parentElement.classList.remove("nok")
-    input.parentElement.classList.add("pending")
-    fetch(new Request("updateHost.php", {
-        method:"POST",
-        body:new FormData(input.form),
-        mode:"cors"
-    })).then(response => {
-        input.parentElement.classList.remove("pending")
-        if (response.ok) {
-            input.parentElement.classList.add("ok")
-        } else {
-            input.parentElement.classList.add("nok")
-        }
-    })
+    if (input.form.checkValidity()) {
+        var td = input.parentElement
+        var tr = td.parentElement
+        tr.classList.remove("ok")
+        tr.classList.remove("nok")
+        tr.classList.add("pending")
+        fetch(new Request("updateHost.php", {
+            method:"POST",
+            body:new FormData(input.form),
+            mode:"cors"
+        })).then(response => {
+            tr.classList.remove("pending")
+            if (response.ok) {
+                tr.classList.add("ok")
+                var linkInput = tr.getElementsByTagName('input')[7]
+                var linkA = tr.getElementsByTagName('a')[0]
+                linkA.href = linkInput.value
+            } else {
+                tr.classList.add("nok")
+            }
+        })
+    } else {
+        input.form.reportValidity()
+    }
 }
\ No newline at end of file
diff --git a/network.php b/network.php
index f3121bb..18b450c 100644
--- a/network.php
+++ b/network.php
@@ -52,12 +52,13 @@ if (!$siteName) {
                                 <th>FQDN</th>
                                 <th>Adresse MAC</th>
                                 <th>Commentaires</th>
+                                <th>Lien</th>
                             </tr>
                         </thead>
                         <tbody>
                             <tr>
                                 <td class="td-input"><input type="text" name='ip' value="<?=$networkAddressStr?>" disabled/></td>
-                                <td class="td-input" colspan="4"><input type="text" value="Adresse réseau" disabled/></td>
+                                <td class="td-input" colspan="5"><input type="text" value="Adresse réseau" disabled/></td>
                             </tr>
 <?php
     for ($ip = $networkAddress + 1; ($ip+1 & $networkMask) == $networkAddress; $ip++ ) {
@@ -68,10 +69,12 @@ if (!$siteName) {
                                     <input type="hidden" name="ip" value="<?=$ip?>"/>
                                     <input type="hidden" name="networkId" value="<?=$networkId?>"/>
                                     <td class="td-input"><input type="text" value="<?=long2ip($ip)?>" disabled/></td>
-                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name='hostname' value="<?=$host["Hostname"]?>"/></td>
-                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name='fqdn' value="<?=$host["FQDN"]?>"/></td>
-                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name='macAddress' value="<?=$host["MacAddress"]?>"/></td>
-                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name='comments' value="<?=$host["Comments"]?>"/></td>
+                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name="hostname" pattern="^[A-Za-z0-9_-]*$" value="<?=$host["Hostname"]?>"/></td>
+                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name="fqdn" pattern="^[a-zA-Z0-9._-]*$" value="<?=$host["FQDN"]?>"/></td>
+                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name="macAddress" pattern="^([a-fA-F0-9]{2}[:-]{1}){5}[a-fA-F0-9]{2}$" title="XX:XX:XX:XX:XX:XX" value="<?=$host["MacAddress"]?>"/></td>
+                                    <td class="td-input"><input type="text" onchange="updateHost(this)" name="comments" value="<?=$host["Comments"]?>"/></td>
+                                    <td class="td-input"><input type="url" onchange="updateHost(this)" name="link" value="<?=$host["Link"]?>"/></td>
+                                    <td><a href="<?=$host["Link"]?>" target="_blank"><i class="material-icons">launch</i></a></td>
                                 </form>
                             </tr>
 <?php
diff --git a/updateHost.php b/updateHost.php
index f4a2e25..fafedf4 100644
--- a/updateHost.php
+++ b/updateHost.php
@@ -1,29 +1,34 @@
 <?php
-$ip = filter_input(INPUT_POST, "ip", FILTER_VALIDATE_INT);
-$networkId = filter_input(INPUT_POST, "networkId", FILTER_VALIDATE_INT);
+$ip = filter_input(INPUT_POST, "ip", FILTER_VALIDATE_INT, FILTER_NULL_ON_FAILURE);
+$networkId = filter_input(INPUT_POST, "networkId", FILTER_VALIDATE_INT, FILTER_NULL_ON_FAILURE);
 $hostname = filter_input(INPUT_POST, "hostname", FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME);
 $fqdn = filter_input(INPUT_POST, "fqdn", FILTER_VALIDATE_DOMAIN);
 $macAddress = filter_input(INPUT_POST, "macAddress", FILTER_VALIDATE_MAC);
 $comments = filter_input(INPUT_POST, "comments", FILTER_SANITIZE_STRING);
-if (!($ip && $networkId)) {
+$link = filter_input(INPUT_POST, "link", FILTER_VALIDATE_URL);
+
+if (is_null($ip)
+|| is_null($networkId)) {
     header("Location: 400.php");
     exit;
 }
 include "connect.php";
 try {
     $update = $db->prepare("
-        INSERT INTO Hosts(IpAddress, NetworkId, Hostname, FQDN, MacAddress, Comments)
-        VALUES($ip, $networkId, :i_hostname, :i_fqdn, :i_macAddress, :i_comments)
-        ON DUPLICATE KEY UPDATE Hostname = :u_hostname, FQDN = :u_fqdn, MacAddress = :u_macAddress, Comments = :u_comments
+        INSERT INTO Hosts(IpAddress, NetworkId, Hostname, FQDN, MacAddress, Link, Comments)
+        VALUES($ip, $networkId, :i_hostname, :i_fqdn, :i_macAddress, :i_link, :i_comments)
+        ON DUPLICATE KEY UPDATE Hostname = :u_hostname, FQDN = :u_fqdn, MacAddress = :u_macAddress, Comments = :u_comments, Link = :u_link
     ");
     $update->execute([
         'i_hostname' => $hostname,
         'i_fqdn' => $fqdn,
         'i_macAddress' => $macAddress,
+        'i_link' => $link,
         'i_comments' => $comments,
         'u_hostname' => $hostname,
         'u_fqdn' => $fqdn,
         'u_macAddress' => $macAddress,
+        'u_link' => $link,
         'u_comments' => $comments
     ]);
 }  catch(Exception $e) {