diff --git a/app/templates/block-results-filter.php b/app/templates/block-results-filter.php
index 9fc3054..29132c2 100644
--- a/app/templates/block-results-filter.php
+++ b/app/templates/block-results-filter.php
@@ -1,7 +1,7 @@
 
                     <!-- Results filter -->
                     <div class="card w-auto bg-light border-light card-body text-right" style="text-align: right;">
-                        <form method="POST" id="filter_form" action="?page=<?= $page ?>">
+                        <form method="POST" id="filter_form" action="?platform=<?= $platform_id?>&page=<?= $page ?>">
                             <label for="from_time">from</label>
                             <input type="date" id="from_time" name="from_time"<?php if (isset($_REQUEST['from_time'])) echo " value=\"" . $_REQUEST['from_time'] . "\"" ?> />
                             <label for="until_time">until</label>
diff --git a/app/templates/page-menu.php b/app/templates/page-menu.php
index 6c7ac91..ba0a607 100644
--- a/app/templates/page-menu.php
+++ b/app/templates/page-menu.php
@@ -4,7 +4,7 @@
             <ul class="menu-left">
                 <div class="container">
                     <div class="row">
-                        <a href="<?= $app_root ?>" class="logo-link"><div class="col-4"><img class="logo" src="<?= $app_root ?>static/jilo-logo.png" alt="JILO"/></div></a>
+                        <a href="<?= $app_root ?>?platform=<?= $platform_id?>" class="logo-link"><div class="col-4"><img class="logo" src="<?= $app_root ?>static/jilo-logo.png" alt="JILO"/></div></a>
                     </div>
                 </div>
 
diff --git a/app/templates/page-sidebar.php b/app/templates/page-sidebar.php
index 9f4e92b..dc9b669 100644
--- a/app/templates/page-sidebar.php
+++ b/app/templates/page-sidebar.php
@@ -5,22 +5,22 @@
                 <div class="col-4"><button class="btn btn-sm btn-info toggle-sidebar-button" type="button" id="toggleSidebarButton" value=">>"></button></div>
                 <div class="sidebar-content card ml-3 mt-3">
                     <ul class="list-group">
-                        <a href="<?= $app_root ?>?page=front">
+                        <a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=front">
                             <li class="list-group-item<?php if ($page === 'front') echo ' list-group-item-secondary'; else echo ' list-group-item-action'; ?>">
                                 <i class="fas fa-chart-line" data-toggle="tooltip" data-placement="right" data-offset="30.0" title="general jitsi stats"></i>general stats
                             </li>
                         </a>
-                        <a href="<?= $app_root ?>?page=conferences">
+                        <a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=conferences">
                             <li class="list-group-item<?php if ($page === 'conferences') echo ' list-group-item-secondary'; else echo ' list-group-item-action'; ?>">
                                 <i class="fas fa-video" data-toggle="tooltip" data-placement="right" data-offset="30.0" title="conferences"></i>conferences
                             </li>
                         </a>
-                        <a href="<?= $app_root ?>?page=participants">
+                        <a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=participants">
                             <li class="list-group-item<?php if ($page === 'participants') echo ' list-group-item-secondary'; else echo ' list-group-item-action'; ?>">
                                 <i class="fas fa-users" data-toggle="tooltip" data-placement="right" data-offset="30.0" title="participants"></i>participants
                             </li>
                         </a>
-                        <a href="<?= $app_root ?>?page=components">
+                        <a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=components">
                             <li class="list-group-item<?php if ($page === 'components') echo ' list-group-item-secondary'; else echo ' list-group-item-action'; ?>">
                                 <i class="fas fa-puzzle-piece" data-toggle="tooltip" data-placement="right" data-offset="30.0" title="components"></i>components
                             </li>
diff --git a/app/templates/widget-monthly.php b/app/templates/widget-monthly.php
index 3c0fe84..c105046 100644
--- a/app/templates/widget-monthly.php
+++ b/app/templates/widget-monthly.php
@@ -36,7 +36,7 @@
                                     <td>conferences</td>
 <?php     foreach ($widget['records'] as $record) { ?>
                                     <td><?php if (!empty($record['conferences'])) { ?>
-                                        <a href="<?= $app_root ?>?page=conferences&from_time=<?= $record['from_time'] ?>&until_time=<?= $record['until_time'] ?>"><?= htmlspecialchars($record['conferences']) ?></a> <?php } else { ?>
+                                        <a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=conferences&from_time=<?= $record['from_time'] ?>&until_time=<?= $record['until_time'] ?>"><?= htmlspecialchars($record['conferences']) ?></a> <?php } else { ?>
                                         0<?php } ?>
                                     </td>
 <?php     } ?>
@@ -45,7 +45,7 @@
                                     <td>participants</td>
 <?php     foreach ($widget['records'] as $record) { ?>
                                     <td><?php if (!empty($record['participants'])) { ?>
-                                        <a href="<?= $app_root ?>?page=participants&from_time=<?= $record['from_time'] ?>&until_time=<?= $record['until_time'] ?>"><?= htmlspecialchars($record['participants']) ?></a> <?php } else { ?>
+                                        <a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=participants&from_time=<?= $record['from_time'] ?>&until_time=<?= $record['until_time'] ?>"><?= htmlspecialchars($record['participants']) ?></a> <?php } else { ?>
                                         0<?php } ?>
                                     </td>
 <?php     } ?>
diff --git a/app/templates/widget.php b/app/templates/widget.php
index 60ff393..2c748a0 100644
--- a/app/templates/widget.php
+++ b/app/templates/widget.php
@@ -39,27 +39,27 @@
                     if ($key === 'conference ID' && isset($conferenceId) && $conferenceId === $column) { ?>
                                     <td><strong><?= htmlspecialchars($column ?? '') ?></strong></td>
 <?php               } elseif ($key === 'conference ID') { ?>
-                                    <td><a href="<?= $app_root ?>?page=conferences&id=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
+                                    <td><a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=conferences&id=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
 <?php               } elseif ($key === 'conference name' && isset($conferenceName) && $conferenceName === $column) { ?>
                                     <td><strong><?= htmlspecialchars($column ?? '') ?></strong></td>
 <?php               } elseif ($key === 'conference name') { ?>
-                                    <td><a href="<?= $app_root ?>?page=conferences&name=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
+                                    <td><a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=conferences&name=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
 <?php               } elseif ($key === 'participant ID' && isset($participantId) && $participantId === $column) { ?>
                                     <td><strong><?= htmlspecialchars($column ?? '') ?></strong></td>
 <?php               } elseif ($key === 'participant ID') { ?>
-                                    <td><a href="<?= $app_root ?>?page=participants&id=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
+                                    <td><a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=participants&id=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
 <?php               } elseif ($key === 'component ID') { ?>
-                                    <td><a href="<?= $app_root ?>?page=components&id=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
+                                    <td><a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=components&id=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
 <?php               } elseif ($stats_id && $key === 'parameter' && isset($participantName) && $participantName === $column) { ?>
                                     <td><strong><?= htmlspecialchars($column ?? '') ?></strong></td>
 <?php               } elseif ($stats_id && $key === 'parameter') { ?>
-                                    <td><a href="<?= $app_root ?>?page=participants&name=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
+                                    <td><a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=participants&name=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
 <?php               } elseif ($participant_ip && $key === 'parameter' && isset($participantIp) && $participantIp === $column) { ?>
                                     <td><strong><?= htmlspecialchars($column ?? '') ?></strong></td>
 <?php               } elseif ($participant_ip && $key === 'parameter') { ?>
-                                    <td><a href="<?= $app_root ?>?page=participants&ip=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
+                                    <td><a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=participants&ip=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
 <?php               } elseif ($key === 'component') { ?>
-                                    <td><a href="<?= $app_root ?>?page=components&name=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
+                                    <td><a href="<?= $app_root ?>?platform=<?= $platform_id?>&page=components&name=<?= htmlspecialchars($column ?? '') ?>"><?= htmlspecialchars($column ?? '') ?></a></td>
 <?php               } else { ?>
                                     <td><?= htmlspecialchars($column ?? '') ?></td>
 <?php               }