diff --git a/src/main/java/me/kavin/piped/Main.java b/src/main/java/me/kavin/piped/Main.java
index d86c933..1cb0545 100644
--- a/src/main/java/me/kavin/piped/Main.java
+++ b/src/main/java/me/kavin/piped/Main.java
@@ -30,172 +30,185 @@ public class Main {
 
 	    routes.get("/webhooks/pubsub", (req, res) -> {
 
+		long start = System.nanoTime();
 		QueryStringDecoder query = new QueryStringDecoder(req.uri());
 
 		try {
-		    return writeResponse(res, query.parameters().get("hub.challenge").get(0), 200, "private");
+		    return writeResponse(res, query.parameters().get("hub.challenge").get(0), 200, "private", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.post("/webhooks/pubsub", (req, res) -> {
 
+		long start = System.nanoTime();
+
 		try {
 		    req.receive().asInputStream().subscribe(in -> {
 			try {
 			    SyndFeed feed = new SyndFeedInput().build(new XmlReader(in));
 
-				    feed.getEntries().forEach(entry -> {
-					System.out.println(entry.getLinks().get(0).getHref());
-					System.out.println(entry.getAuthors().get(0).getUri());
-				    });
+			    feed.getEntries().forEach(entry -> {
+				System.out.println(entry.getLinks().get(0).getHref());
+				System.out.println(entry.getAuthors().get(0).getUri());
+			    });
 
 			} catch (Exception e) {
 			    e.printStackTrace();
 			}
 		    });
-		    return writeResponse(res, "ok", 200, "private");
+		    return writeResponse(res, "ok", 200, "private", start);
 		} catch (Exception e) {
-			    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    e.printStackTrace();
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/sponsors/{videoId}", (req, res) -> {
 
+		long start = System.nanoTime();
 		QueryStringDecoder query = new QueryStringDecoder(req.uri());
 
 		try {
 		    return writeResponse(res, SponsorBlockUtils.getSponsors(req.param("videoId"),
-			    query.parameters().get("category").get(0)), 200, "public, max-age=3600");
+			    query.parameters().get("category").get(0)), 200, "public, max-age=3600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/streams/{videoId}", (req, res) -> {
 
+		long start = System.nanoTime();
 		try {
 		    // The stream links are valid for 6 hours.
 		    return writeResponse(res, ResponseHelper.streamsResponse(req.param("videoId")), 200,
-			    "public, s-maxage=21540");
+			    "public, s-maxage=21540", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/channels/{channelId}", (req, res) -> {
 
+		long start = System.nanoTime();
 		try {
 		    return writeResponse(res, ResponseHelper.channelResponse(req.param("channelId")), 200,
-			    "public, max-age=600");
+			    "public, max-age=600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/nextpage/channels/{channelId}", (req, res) -> {
 
+		long start = System.nanoTime();
 		QueryStringDecoder query = new QueryStringDecoder(req.uri());
 
 		try {
 		    return writeResponse(res, ResponseHelper.channelPageResponse(req.param("channelId"),
-			    query.parameters().get("url").get(0)), 200, "public, max-age=3600");
+			    query.parameters().get("url").get(0)), 200, "public, max-age=3600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/playlists/{playlistId}", (req, res) -> {
 
+		long start = System.nanoTime();
 		try {
 		    return writeResponse(res, ResponseHelper.playlistResponse(req.param("playlistId")), 200,
-			    "public, max-age=600");
+			    "public, max-age=600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/nextpage/playlists/{playlistId}", (req, res) -> {
 
+		long start = System.nanoTime();
 		QueryStringDecoder query = new QueryStringDecoder(req.uri());
 
 		try {
 		    return writeResponse(res, ResponseHelper.playlistPageResponse(req.param("playlistId"),
-			    query.parameters().get("url").get(0)), 200, "public, max-age=3600");
+			    query.parameters().get("url").get(0)), 200, "public, max-age=3600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/suggestions", (req, res) -> {
 
+		long start = System.nanoTime();
 		QueryStringDecoder query = new QueryStringDecoder(req.uri());
 
 		try {
 		    return writeResponse(res,
 			    ResponseHelper.suggestionsResponse(query.parameters().get("query").get(0)), 200,
-			    "public, max-age=600");
+			    "public, max-age=600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/search", (req, res) -> {
 
+		long start = System.nanoTime();
 		QueryStringDecoder query = new QueryStringDecoder(req.uri());
 
 		try {
 		    return writeResponse(res, ResponseHelper.searchResponse(query.parameters().get("q").get(0)), 200,
-			    "public, max-age=600");
+			    "public, max-age=600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/nextpage/search", (req, res) -> {
 
+		long start = System.nanoTime();
 		QueryStringDecoder query = new QueryStringDecoder(req.uri());
 
 		try {
 		    return writeResponse(res,
 			    ResponseHelper.searchPageResponse(query.parameters().get("q").get(0),
 				    query.parameters().get("url").get(0), query.parameters().get("id").get(0)),
-			    200, "public, max-age=3600");
+			    200, "public, max-age=3600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
 
 	    routes.get("/trending", (req, res) -> {
 
+		long start = System.nanoTime();
 		try {
-		    return writeResponse(res, ResponseHelper.trendingResponse(), 200, "public, max-age=3600");
+		    return writeResponse(res, ResponseHelper.trendingResponse(), 200, "public, max-age=3600", start);
 		} catch (Exception e) {
 		    e.printStackTrace();
-		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private", start);
 		}
 
 	    });
@@ -205,14 +218,16 @@ public class Main {
 	Thread.sleep(Long.MAX_VALUE);
     }
 
-    public static NettyOutbound writeResponse(HttpServerResponse res, String resp, int code, String cache) {
+    public static NettyOutbound writeResponse(HttpServerResponse res, String resp, int code, String cache, long time) {
 	return res.compression(true).addHeader("Access-Control-Allow-Origin", "*").addHeader("Cache-Control", cache)
+		.addHeader("Server-Timing", "app;dur=" + (System.nanoTime() - time) / 1000000.0)
 		.send(ByteBufFlux.fromString(Flux.just(resp), java.nio.charset.StandardCharsets.UTF_8,
 			ByteBufAllocator.DEFAULT));
     }
 
-    public static NettyOutbound writeResponse(HttpServerResponse res, byte[] resp, int code, String cache) {
+    public static NettyOutbound writeResponse(HttpServerResponse res, byte[] resp, int code, String cache, long time) {
 	return res.compression(true).addHeader("Access-Control-Allow-Origin", "*").addHeader("Cache-Control", cache)
+		.addHeader("Server-Timing", "app;dur=" + (System.nanoTime() - time) / 1000000.0)
 		.sendByteArray(Flux.just(resp));
     }