diff --git a/instrumentation/netty/netty-4-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/netty/common/server/NettyHttpServerAttributesExtractor.java b/instrumentation/netty/netty-4-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/netty/common/server/NettyHttpServerAttributesExtractor.java
index ab0c4c6644f3..7063cbeb7d12 100644
--- a/instrumentation/netty/netty-4-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/netty/common/server/NettyHttpServerAttributesExtractor.java
+++ b/instrumentation/netty/netty-4-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/netty/common/server/NettyHttpServerAttributesExtractor.java
@@ -5,6 +5,7 @@
 
 package io.opentelemetry.javaagent.instrumentation.netty.common.server;
 
+import io.netty.channel.ChannelHandler;
 import io.netty.handler.codec.http.HttpResponse;
 import io.opentelemetry.instrumentation.api.instrumenter.http.HttpServerAttributesExtractor;
 import io.opentelemetry.javaagent.instrumentation.netty.common.HttpRequestAndChannel;
@@ -14,6 +15,21 @@
 final class NettyHttpServerAttributesExtractor
     extends HttpServerAttributesExtractor<HttpRequestAndChannel, HttpResponse> {
 
+  private static final Class<? extends ChannelHandler> sslHandlerClass = getSslHandlerClass();
+
+  @SuppressWarnings("unchecked")
+  private static Class<? extends ChannelHandler> getSslHandlerClass() {
+    try {
+      return (Class<? extends ChannelHandler>)
+          Class.forName(
+              "io.netty.handler.ssl.SslHandler",
+              false,
+              NettyHttpServerAttributesExtractor.class.getClassLoader());
+    } catch (ClassNotFoundException exception) {
+      return null;
+    }
+  }
+
   @Override
   protected String method(HttpRequestAndChannel requestAndChannel) {
     return requestAndChannel.request().getMethod().name();
@@ -86,7 +102,8 @@ protected String route(HttpRequestAndChannel requestAndChannel) {
   @Override
   @Nullable
   protected String scheme(HttpRequestAndChannel requestAndChannel) {
-    return null;
+    boolean isHttps = requestAndChannel.channel().pipeline().get(sslHandlerClass) != null;
+    return isHttps ? "https" : "http";
   }
 
   @Override
diff --git a/instrumentation/spring/spring-webflux-5.0/javaagent/src/test/groovy/SpringWebfluxTest.groovy b/instrumentation/spring/spring-webflux-5.0/javaagent/src/test/groovy/SpringWebfluxTest.groovy
index 21717d8c581e..8f6cff7ea7b0 100644
--- a/instrumentation/spring/spring-webflux-5.0/javaagent/src/test/groovy/SpringWebfluxTest.groovy
+++ b/instrumentation/spring/spring-webflux-5.0/javaagent/src/test/groovy/SpringWebfluxTest.groovy
@@ -86,6 +86,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" urlPath
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -150,6 +151,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" urlPath
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -234,6 +236,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" urlPath
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -296,6 +299,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" "/notfoundgreet"
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 404
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -337,6 +341,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" "/echo"
             "${SemanticAttributes.HTTP_METHOD.key}" "POST"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 202
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -383,6 +388,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" urlPath
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 500
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -444,6 +450,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" "/double-greet-redirect"
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 307
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -473,6 +480,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET}" "/double-greet"
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -517,6 +525,7 @@ class SpringWebfluxTest extends AgentInstrumentationSpecification {
               "${SemanticAttributes.HTTP_TARGET}" urlPath
               "${SemanticAttributes.HTTP_METHOD.key}" "GET"
               "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+              "${SemanticAttributes.HTTP_SCHEME.key}" "http"
               "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
               "${SemanticAttributes.HTTP_USER_AGENT.key}" String
             }
diff --git a/instrumentation/vertx-reactive-3.5/javaagent/src/latestDepTest/groovy/VertxReactivePropagationTest.groovy b/instrumentation/vertx-reactive-3.5/javaagent/src/latestDepTest/groovy/VertxReactivePropagationTest.groovy
index 1332d15227ad..9878f15f93e7 100644
--- a/instrumentation/vertx-reactive-3.5/javaagent/src/latestDepTest/groovy/VertxReactivePropagationTest.groovy
+++ b/instrumentation/vertx-reactive-3.5/javaagent/src/latestDepTest/groovy/VertxReactivePropagationTest.groovy
@@ -69,6 +69,7 @@ class VertxReactivePropagationTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET.key}" "/listProducts"
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -157,6 +158,7 @@ class VertxReactivePropagationTest extends AgentInstrumentationSpecification {
               "${SemanticAttributes.HTTP_TARGET.key}" "$baseUrl?$TEST_REQUEST_ID_PARAMETER=$requestId"
               "${SemanticAttributes.HTTP_METHOD.key}" "GET"
               "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+              "${SemanticAttributes.HTTP_SCHEME.key}" "http"
               "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
               "${SemanticAttributes.HTTP_USER_AGENT.key}" String
               "${TEST_REQUEST_ID_ATTRIBUTE}" requestId
diff --git a/instrumentation/vertx-reactive-3.5/javaagent/src/version35Test/groovy/VertxReactivePropagationTest.groovy b/instrumentation/vertx-reactive-3.5/javaagent/src/version35Test/groovy/VertxReactivePropagationTest.groovy
index 1332d15227ad..9878f15f93e7 100644
--- a/instrumentation/vertx-reactive-3.5/javaagent/src/version35Test/groovy/VertxReactivePropagationTest.groovy
+++ b/instrumentation/vertx-reactive-3.5/javaagent/src/version35Test/groovy/VertxReactivePropagationTest.groovy
@@ -69,6 +69,7 @@ class VertxReactivePropagationTest extends AgentInstrumentationSpecification {
             "${SemanticAttributes.HTTP_TARGET.key}" "/listProducts"
             "${SemanticAttributes.HTTP_METHOD.key}" "GET"
             "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+            "${SemanticAttributes.HTTP_SCHEME.key}" "http"
             "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
             "${SemanticAttributes.HTTP_USER_AGENT.key}" String
           }
@@ -157,6 +158,7 @@ class VertxReactivePropagationTest extends AgentInstrumentationSpecification {
               "${SemanticAttributes.HTTP_TARGET.key}" "$baseUrl?$TEST_REQUEST_ID_PARAMETER=$requestId"
               "${SemanticAttributes.HTTP_METHOD.key}" "GET"
               "${SemanticAttributes.HTTP_STATUS_CODE.key}" 200
+              "${SemanticAttributes.HTTP_SCHEME.key}" "http"
               "${SemanticAttributes.HTTP_FLAVOR.key}" "1.1"
               "${SemanticAttributes.HTTP_USER_AGENT.key}" String
               "${TEST_REQUEST_ID_ATTRIBUTE}" requestId