diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCConferenceExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCConferenceExtractor.java
index b933f179..7d39eacb 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCConferenceExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCConferenceExtractor.java
@@ -80,7 +80,6 @@ public class MediaCCCConferenceExtractor extends ChannelExtractor {
     }
 
     @Override
-
     public InfoItemsPage<StreamInfoItem> getPage(final Page page) {
         return InfoItemsPage.emptyPage();
     }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeAccountExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeAccountExtractor.java
index 12588b49..6f987877 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeAccountExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeAccountExtractor.java
@@ -24,6 +24,7 @@ import java.io.IOException;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.COUNT_KEY;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.ITEMS_PER_PAGE;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.START_KEY;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class PeertubeAccountExtractor extends ChannelExtractor {
     private JsonObject json;
@@ -110,7 +111,12 @@ public class PeertubeAccountExtractor extends ChannelExtractor {
 
     @Override
     public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Response response = getDownloader().get(page.getUrl());
+
         JsonObject json = null;
         if (response != null && !Utils.isBlank(response.responseBody())) {
             try {
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeChannelExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeChannelExtractor.java
index d4a30c73..4bc3d9af 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeChannelExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeChannelExtractor.java
@@ -24,6 +24,8 @@ import java.io.IOException;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.COUNT_KEY;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.ITEMS_PER_PAGE;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.START_KEY;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
+
 
 public class PeertubeChannelExtractor extends ChannelExtractor {
     private JsonObject json;
@@ -116,7 +118,12 @@ public class PeertubeChannelExtractor extends ChannelExtractor {
 
     @Override
     public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Response response = getDownloader().get(page.getUrl());
+
         JsonObject json = null;
         if (response != null && !Utils.isBlank(response.responseBody())) {
             try {
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeCommentsExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeCommentsExtractor.java
index d1b4378e..9e628ee3 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeCommentsExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeCommentsExtractor.java
@@ -23,6 +23,7 @@ import java.io.IOException;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.COUNT_KEY;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.ITEMS_PER_PAGE;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.START_KEY;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class PeertubeCommentsExtractor extends CommentsExtractor {
     public PeertubeCommentsExtractor(final StreamingService service, final ListLinkHandler uiHandler) {
@@ -51,7 +52,12 @@ public class PeertubeCommentsExtractor extends CommentsExtractor {
 
     @Override
     public InfoItemsPage<CommentsInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Response response = getDownloader().get(page.getUrl());
+
         JsonObject json = null;
         if (response != null && !Utils.isBlank(response.responseBody())) {
             try {
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubePlaylistExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubePlaylistExtractor.java
index 59043f9d..afcc881e 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubePlaylistExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubePlaylistExtractor.java
@@ -26,6 +26,7 @@ import javax.annotation.Nonnull;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.COUNT_KEY;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.ITEMS_PER_PAGE;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.START_KEY;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class PeertubePlaylistExtractor extends PlaylistExtractor {
     private JsonObject playlistInfo;
@@ -108,7 +109,12 @@ public class PeertubePlaylistExtractor extends PlaylistExtractor {
 
     @Override
     public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Response response = getDownloader().get(page.getUrl());
+
         JsonObject json = null;
         if (response != null && !Utils.isBlank(response.responseBody())) {
             try {
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeSearchExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeSearchExtractor.java
index 9d96a49f..90ba6894 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeSearchExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeSearchExtractor.java
@@ -25,6 +25,7 @@ import javax.annotation.Nonnull;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.COUNT_KEY;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.ITEMS_PER_PAGE;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.START_KEY;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class PeertubeSearchExtractor extends SearchExtractor {
     public PeertubeSearchExtractor(StreamingService service, SearchQueryHandler linkHandler) {
@@ -68,7 +69,12 @@ public class PeertubeSearchExtractor extends SearchExtractor {
 
     @Override
     public InfoItemsPage<InfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Response response = getDownloader().get(page.getUrl());
+
         JsonObject json = null;
         if (response != null && !Utils.isBlank(response.responseBody())) {
             try {
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeTrendingExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeTrendingExtractor.java
index 8aebc91d..5686bb20 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeTrendingExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeTrendingExtractor.java
@@ -20,9 +20,12 @@ import org.schabi.newpipe.extractor.utils.Utils;
 
 import java.io.IOException;
 
+import javax.annotation.Nonnull;
+
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.COUNT_KEY;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.ITEMS_PER_PAGE;
 import static org.schabi.newpipe.extractor.services.peertube.PeertubeParsingHelper.START_KEY;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class PeertubeTrendingExtractor extends KioskExtractor<StreamInfoItem> {
     public PeertubeTrendingExtractor(final StreamingService streamingService, final ListLinkHandler linkHandler, final String kioskId) {
@@ -60,7 +63,12 @@ public class PeertubeTrendingExtractor extends KioskExtractor<StreamInfoItem> {
 
     @Override
     public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Response response = getDownloader().get(page.getUrl());
+
         JsonObject json = null;
         if (response != null && !Utils.isBlank(response.responseBody())) {
             try {
@@ -84,5 +92,5 @@ public class PeertubeTrendingExtractor extends KioskExtractor<StreamInfoItem> {
     }
 
     @Override
-    public void onFetchPage(Downloader downloader) throws IOException, ExtractionException { }
+    public void onFetchPage(@Nonnull final Downloader downloader) throws IOException, ExtractionException { }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChannelExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChannelExtractor.java
index b1841755..1b56ace2 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChannelExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChannelExtractor.java
@@ -1,9 +1,9 @@
 package org.schabi.newpipe.extractor.services.soundcloud.extractors;
 
-import com.grack.nanojson.JsonArray;
 import com.grack.nanojson.JsonObject;
 import com.grack.nanojson.JsonParser;
 import com.grack.nanojson.JsonParserException;
+
 import org.schabi.newpipe.extractor.Page;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.channel.ChannelExtractor;
@@ -15,9 +15,10 @@ import org.schabi.newpipe.extractor.services.soundcloud.SoundcloudParsingHelper;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
 
-import javax.annotation.Nonnull;
 import java.io.IOException;
 
+import javax.annotation.Nonnull;
+
 import static org.schabi.newpipe.extractor.utils.JsonUtils.EMPTY_STRING;
 import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
@@ -118,6 +119,10 @@ public class SoundcloudChannelExtractor extends ChannelExtractor {
 
     @Override
     public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
         String nextPageUrl = SoundcloudParsingHelper.getStreamsFromApiMinItems(15, collector, page.getUrl());
 
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChartsExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChartsExtractor.java
index 71a5a936..4076accb 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChartsExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudChartsExtractor.java
@@ -10,9 +10,10 @@ import org.schabi.newpipe.extractor.services.soundcloud.SoundcloudParsingHelper;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
 
-import javax.annotation.Nonnull;
 import java.io.IOException;
 
+import javax.annotation.Nonnull;
+
 import static org.schabi.newpipe.extractor.ServiceList.SoundCloud;
 import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
@@ -34,7 +35,11 @@ public class SoundcloudChartsExtractor extends KioskExtractor<StreamInfoItem> {
     }
 
     @Override
-    public InfoItemsPage<StreamInfoItem> getPage(Page page) throws IOException, ExtractionException {
+    public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
         String nextPageUrl = SoundcloudParsingHelper.getStreamsFromApi(collector, page.getUrl(), true);
 
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudCommentsExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudCommentsExtractor.java
index 7f99a8b2..f12559c3 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudCommentsExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudCommentsExtractor.java
@@ -21,6 +21,8 @@ import java.io.IOException;
 
 import javax.annotation.Nonnull;
 
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
+
 public class SoundcloudCommentsExtractor extends CommentsExtractor {
     public SoundcloudCommentsExtractor(final StreamingService service, final ListLinkHandler uiHandler) {
         super(service, uiHandler);
@@ -48,6 +50,10 @@ public class SoundcloudCommentsExtractor extends CommentsExtractor {
 
     @Override
     public InfoItemsPage<CommentsInfoItem> getPage(final Page page) throws ExtractionException, IOException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Downloader downloader = NewPipe.getDownloader();
         final Response response = downloader.get(page.getUrl());
 
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudPlaylistExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudPlaylistExtractor.java
index 9e4fdeda..b8518a7e 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudPlaylistExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudPlaylistExtractor.java
@@ -155,8 +155,11 @@ public class SoundcloudPlaylistExtractor extends PlaylistExtractor {
     }
 
     @Override
+    public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getIds())) {
+            throw new IllegalArgumentException("Page doesn't contain IDs");
+        }
 
-    public InfoItemsPage<StreamInfoItem> getPage(Page page) throws IOException, ExtractionException {
         final List<String> currentIds;
         final List<String> nextIds;
         if (page.getIds().size() <= STREAMS_PER_REQUESTED_PAGE) {
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudSearchExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudSearchExtractor.java
index 50a52a31..93a5e131 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudSearchExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/extractors/SoundcloudSearchExtractor.java
@@ -4,6 +4,7 @@ import com.grack.nanojson.JsonArray;
 import com.grack.nanojson.JsonObject;
 import com.grack.nanojson.JsonParser;
 import com.grack.nanojson.JsonParserException;
+
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.InfoItemExtractor;
 import org.schabi.newpipe.extractor.InfoItemsCollector;
@@ -17,14 +18,16 @@ import org.schabi.newpipe.extractor.search.InfoItemsSearchCollector;
 import org.schabi.newpipe.extractor.search.SearchExtractor;
 import org.schabi.newpipe.extractor.utils.Parser;
 
-import javax.annotation.Nonnull;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.net.MalformedURLException;
 import java.net.URL;
 
+import javax.annotation.Nonnull;
+
 import static org.schabi.newpipe.extractor.services.soundcloud.linkHandler.SoundcloudSearchQueryHandlerFactory.ITEMS_PER_PAGE;
 import static org.schabi.newpipe.extractor.utils.JsonUtils.EMPTY_STRING;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class SoundcloudSearchExtractor extends SearchExtractor {
     private JsonArray searchCollection;
@@ -51,7 +54,11 @@ public class SoundcloudSearchExtractor extends SearchExtractor {
     }
 
     @Override
-    public InfoItemsPage<InfoItem> getPage(Page page) throws IOException, ExtractionException {
+    public InfoItemsPage<InfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final Downloader dl = getDownloader();
         try {
             final String response = dl.get(page.getUrl(), getExtractorLocalization()).responseBody();
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeChannelExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeChannelExtractor.java
index e2d12274..45d2ac36 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeChannelExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeChannelExtractor.java
@@ -2,6 +2,7 @@ package org.schabi.newpipe.extractor.services.youtube.extractors;
 
 import com.grack.nanojson.JsonArray;
 import com.grack.nanojson.JsonObject;
+
 import org.schabi.newpipe.extractor.Page;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.channel.ChannelExtractor;
@@ -17,10 +18,13 @@ import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
 import org.schabi.newpipe.extractor.utils.Utils;
 
-import javax.annotation.Nonnull;
 import java.io.IOException;
 
-import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.*;
+import javax.annotation.Nonnull;
+
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.fixThumbnailUrl;
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.getJsonResponse;
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.getTextFromObject;
 import static org.schabi.newpipe.extractor.utils.JsonUtils.EMPTY_STRING;
 import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
@@ -241,7 +245,11 @@ public class YoutubeChannelExtractor extends ChannelExtractor {
     }
 
     @Override
-    public InfoItemsPage<StreamInfoItem> getPage(Page page) throws IOException, ExtractionException {
+    public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         // Unfortunately, we have to fetch the page even if we are only getting next streams,
         // as they don't deliver enough information on their own (the channel name, for example).
         fetchPage();
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeCommentsExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeCommentsExtractor.java
index 62d1eb97..287e7421 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeCommentsExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeCommentsExtractor.java
@@ -30,6 +30,7 @@ import java.util.regex.Pattern;
 import javax.annotation.Nonnull;
 
 import static java.util.Collections.singletonList;
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class YoutubeCommentsExtractor extends CommentsExtractor {
     // using the mobile site for comments because it loads faster and uses get requests instead of post
@@ -83,7 +84,11 @@ public class YoutubeCommentsExtractor extends CommentsExtractor {
     }
 
     @Override
-    public InfoItemsPage<CommentsInfoItem> getPage(Page page) throws IOException, ExtractionException {
+    public InfoItemsPage<CommentsInfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         String ajaxResponse = makeAjaxRequest(page.getUrl());
         JsonObject ajaxJson;
         try {
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeFeedExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeFeedExtractor.java
index c5c566d4..65a0ffd6 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeFeedExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeFeedExtractor.java
@@ -68,7 +68,7 @@ public class YoutubeFeedExtractor extends FeedExtractor {
     }
 
     @Override
-    public InfoItemsPage<StreamInfoItem> getPage(Page page) {
-        return null;
+    public InfoItemsPage<StreamInfoItem> getPage(final Page page) {
+        return InfoItemsPage.emptyPage();
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeMusicSearchExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeMusicSearchExtractor.java
index 6028035f..249a2dae 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeMusicSearchExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeMusicSearchExtractor.java
@@ -187,6 +187,10 @@ public class YoutubeMusicSearchExtractor extends SearchExtractor {
 
     @Override
     public InfoItemsPage<InfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final InfoItemsSearchCollector collector = new InfoItemsSearchCollector(getServiceId());
 
         final String[] youtubeMusicKeys = YoutubeParsingHelper.getYoutubeMusicKeys();
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java
index c23b6dcd..4fa7c88a 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java
@@ -200,7 +200,11 @@ public class YoutubePlaylistExtractor extends PlaylistExtractor {
 
     @Override
     public InfoItemsPage<StreamInfoItem> getPage(final Page page) throws IOException, ExtractionException {
-        StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
+        final StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
         final JsonArray ajaxJson = getJsonResponse(page.getUrl(), getExtractorLocalization());
 
         final JsonObject sectionListContinuation = ajaxJson.getObject(1).getObject("response")
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeSearchExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeSearchExtractor.java
index 5eaafbde..f02fc2bd 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeSearchExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeSearchExtractor.java
@@ -117,6 +117,10 @@ public class YoutubeSearchExtractor extends SearchExtractor {
 
     @Override
     public InfoItemsPage<InfoItem> getPage(final Page page) throws IOException, ExtractionException {
+        if (page == null || isNullOrEmpty(page.getUrl())) {
+            throw new IllegalArgumentException("Page doesn't contain an URL");
+        }
+
         final InfoItemsSearchCollector collector = new InfoItemsSearchCollector(getServiceId());
         final JsonArray ajaxJson = getJsonResponse(page.getUrl(), getExtractorLocalization());
 
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeTrendingExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeTrendingExtractor.java
index 91188f37..ac686e72 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeTrendingExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeTrendingExtractor.java
@@ -62,8 +62,8 @@ public class YoutubeTrendingExtractor extends KioskExtractor<StreamInfoItem> {
     }
 
     @Override
-    public InfoItemsPage<StreamInfoItem> getPage(Page page) {
-        return null;
+    public InfoItemsPage<StreamInfoItem> getPage(final Page page) {
+        return InfoItemsPage.emptyPage();
     }
 
     @Nonnull