diff --git a/atom.xml b/atom.xml
index 512f6c2d1c..c47e459783 100644
--- a/atom.xml
+++ b/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Home Assistant]]></title>
   <link href="https://home-assistant.io/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/community/atom.xml b/blog/categories/community/atom.xml
index fed12148e6..a12508c7ef 100644
--- a/blog/categories/community/atom.xml
+++ b/blog/categories/community/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Community | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/community/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/device-tracking/atom.xml b/blog/categories/device-tracking/atom.xml
index ab9735390a..2eecc9d3a0 100644
--- a/blog/categories/device-tracking/atom.xml
+++ b/blog/categories/device-tracking/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Device-Tracking | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/device-tracking/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/esp8266/atom.xml b/blog/categories/esp8266/atom.xml
index 93047ed252..9d58fe7cb9 100644
--- a/blog/categories/esp8266/atom.xml
+++ b/blog/categories/esp8266/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: ESP8266 | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/esp8266/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/how-to/atom.xml b/blog/categories/how-to/atom.xml
index d2ebcc8cd2..07bea69b9c 100644
--- a/blog/categories/how-to/atom.xml
+++ b/blog/categories/how-to/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: How-To | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/how-to/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/ibeacons/atom.xml b/blog/categories/ibeacons/atom.xml
index 6d65e7fc71..1f780c9949 100644
--- a/blog/categories/ibeacons/atom.xml
+++ b/blog/categories/ibeacons/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: iBeacons | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/ibeacons/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/internet-of-things/atom.xml b/blog/categories/internet-of-things/atom.xml
index 3e55ef639d..4985a28674 100644
--- a/blog/categories/internet-of-things/atom.xml
+++ b/blog/categories/internet-of-things/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Internet-of-Things | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/internet-of-things/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/iot-data/atom.xml b/blog/categories/iot-data/atom.xml
index 0548f25cec..829a3a9bb9 100644
--- a/blog/categories/iot-data/atom.xml
+++ b/blog/categories/iot-data/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: IoT-Data | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/iot-data/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/merchandise/atom.xml b/blog/categories/merchandise/atom.xml
index e4fcb939f5..298529db56 100644
--- a/blog/categories/merchandise/atom.xml
+++ b/blog/categories/merchandise/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Merchandise | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/merchandise/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/micropython/atom.xml b/blog/categories/micropython/atom.xml
index abf589ab06..3c83e792d0 100644
--- a/blog/categories/micropython/atom.xml
+++ b/blog/categories/micropython/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Micropython | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/micropython/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/mqtt/atom.xml b/blog/categories/mqtt/atom.xml
index dd8f224574..99200c1d40 100644
--- a/blog/categories/mqtt/atom.xml
+++ b/blog/categories/mqtt/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: MQTT | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/mqtt/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/organisation/atom.xml b/blog/categories/organisation/atom.xml
index ba180baed1..7a1e3c371c 100644
--- a/blog/categories/organisation/atom.xml
+++ b/blog/categories/organisation/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Organisation | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/organisation/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/owntracks/atom.xml b/blog/categories/owntracks/atom.xml
index 90cf75b6b2..2ff1e6a2c9 100644
--- a/blog/categories/owntracks/atom.xml
+++ b/blog/categories/owntracks/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: OwnTracks | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/owntracks/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/presence-detection/atom.xml b/blog/categories/presence-detection/atom.xml
index b19ac6397d..34dd55e024 100644
--- a/blog/categories/presence-detection/atom.xml
+++ b/blog/categories/presence-detection/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Presence-Detection | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/presence-detection/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/public-service-announcement/atom.xml b/blog/categories/public-service-announcement/atom.xml
index 2af53a59e7..cb52c102df 100644
--- a/blog/categories/public-service-announcement/atom.xml
+++ b/blog/categories/public-service-announcement/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Public-Service-Announcement | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/public-service-announcement/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/release-notes/atom.xml b/blog/categories/release-notes/atom.xml
index ee5f4e5931..ef0290f5de 100644
--- a/blog/categories/release-notes/atom.xml
+++ b/blog/categories/release-notes/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Release-Notes | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/release-notes/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/survey/atom.xml b/blog/categories/survey/atom.xml
index ad9d767beb..62204d5c2a 100644
--- a/blog/categories/survey/atom.xml
+++ b/blog/categories/survey/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Survey | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/survey/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/talks/atom.xml b/blog/categories/talks/atom.xml
index 2923f650ce..2dea2702cb 100644
--- a/blog/categories/talks/atom.xml
+++ b/blog/categories/talks/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Talks | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/talks/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/technology/atom.xml b/blog/categories/technology/atom.xml
index aa4feac9c4..3a6b5af8bd 100644
--- a/blog/categories/technology/atom.xml
+++ b/blog/categories/technology/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Technology | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/technology/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/user-stories/atom.xml b/blog/categories/user-stories/atom.xml
index 6ffa91a109..fbfce20f67 100644
--- a/blog/categories/user-stories/atom.xml
+++ b/blog/categories/user-stories/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: User-Stories | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/user-stories/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/video/atom.xml b/blog/categories/video/atom.xml
index c3ddefecce..97d9e7f125 100644
--- a/blog/categories/video/atom.xml
+++ b/blog/categories/video/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Video | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/video/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/blog/categories/website/atom.xml b/blog/categories/website/atom.xml
index 0456ebe981..4f6792519d 100644
--- a/blog/categories/website/atom.xml
+++ b/blog/categories/website/atom.xml
@@ -4,7 +4,7 @@
   <title><![CDATA[Category: Website | Home Assistant]]></title>
   <link href="https://home-assistant.io/blog/categories/website/atom.xml" rel="self"/>
   <link href="https://home-assistant.io/"/>
-  <updated>2017-04-02T21:32:16+00:00</updated>
+  <updated>2017-04-03T00:53:04+00:00</updated>
   <id>https://home-assistant.io/</id>
   <author>
     <name><![CDATA[Home Assistant]]></name>
diff --git a/components/device_tracker.bluetooth_le_tracker/index.html b/components/device_tracker.bluetooth_le_tracker/index.html
index a769ab0331..c4d05a7eb5 100644
--- a/components/device_tracker.bluetooth_le_tracker/index.html
+++ b/components/device_tracker.bluetooth_le_tracker/index.html
@@ -66,14 +66,19 @@
     </h1>
   </header>
   <hr class="divider">
-  <p>This tracker discovers new devices on boot and in regular intervals and tracks bluetooth low-energy devices periodically based on interval_seconds value. It is not required to pair the devices with each other!</p>
+  <p class="note warning">
+We have received <a href="https://github.com/home-assistant/home-assistant/issues/4442">numerous reports</a> that this integration will have a big impact on the performance of the server.
+</p>
+<p>This tracker discovers new devices on boot and in regular intervals and tracks bluetooth low-energy devices periodically based on interval_seconds value. It is not required to pair the devices with each other.</p>
 <p>Devices discovered are stored with ‘BLE_’ as the prefix for device mac addresses in <code class="highlighter-rouge">known_devices.yaml</code>.</p>
-<p>This platform requires pybluez to be installed. On Debian based installs, run <code class="highlighter-rouge">sudo apt install bluetooth libbluetooth-dev pkg-config libboost-python-dev libboost-thread-dev libglib2.0-dev python-dev</code></p>
+<p>This platform requires pybluez to be installed. On Debian based installs, run</p>
+<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span>sudo apt install bluetooth libbluetooth-dev pkg-config libboost-python-dev libboost-thread-dev libglib2.0-dev python-dev
+</code></pre>
+</div>
 <p>Before you get started with this platform, please note that:</p>
 <ul>
   <li>This platform is incompatible with Windows</li>
   <li>This platform requires root privileges</li>
-  <li>Don’t use on a Raspberry Pi. It will become unusable slow when using this platform.</li>
 </ul>
 <p>To use the Bluetooth tracker in your installation, add the following to your <code class="highlighter-rouge">configuration.yaml</code> file:</p>
 <div class="language-yaml highlighter-rouge"><pre class="highlight"><code><span class="c1"># Example configuration.yaml entry</span>
diff --git a/sitemap.xml b/sitemap.xml
index 4a4f2ebe75..2f9136054b 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -3068,62 +3068,62 @@
 </url>
 <url>
 <loc>https://home-assistant.io/demo/frontend.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/index.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-event.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-info.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-service.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-state.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-dev-template.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-history.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-iframe.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-logbook.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/demo/panels/ha-panel-map.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/googlef4f3693c209fe788.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/static/fonts/roboto/DESCRIPTION.en_us.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/static/fonts/robotomono/DESCRIPTION.en_us.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 <url>
 <loc>https://home-assistant.io/static/mdi-demo.html</loc>
-<lastmod>2017-04-02T21:31:34+00:00</lastmod>
+<lastmod>2017-04-03T00:52:17+00:00</lastmod>
 </url>
 </urlset>