diff --git a/acme4j-client/src/test/java/org/shredzone/acme4j/it/AbstractPebbleIT.java b/acme4j-client/src/test/java/org/shredzone/acme4j/it/AbstractPebbleIT.java
new file mode 100644
index 00000000..203f62a2
--- /dev/null
+++ b/acme4j-client/src/test/java/org/shredzone/acme4j/it/AbstractPebbleIT.java
@@ -0,0 +1,81 @@
+/*
+ * acme4j - Java ACME client
+ *
+ * Copyright (C) 2017 Richard "Shred" Körber
+ *   http://acme4j.shredzone.org
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+package org.shredzone.acme4j.it;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.assertThat;
+
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URL;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * Superclass for all Pebble related integration tests.
+ * <p>
+ * These tests require a running
+ * <a href="https://github.com/letsencrypt/pebble">Pebble</a> ACME test server at
+ * localhost port 14000.
+ */
+public abstract class AbstractPebbleIT {
+
+    private final String pebbleHost = System.getProperty("pebbleHost", "localhost");
+    private final int pebblePort = Integer.parseInt(System.getProperty("pebblePort", "14000"));
+
+    /**
+     * @return The {@link URI} of the pebble server to test against.
+     */
+    protected URI pebbleURI() {
+        return URI.create("acme://pebble/" + pebbleHost + ":" + pebblePort);
+    }
+
+    /**
+     * Creates a fresh key pair.
+     *
+     * @return Created {@link KeyPair}, guaranteed to be unknown to the Pebble server
+     */
+    protected KeyPair createKeyPair() {
+        try {
+            KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
+            keyGen.initialize(2048);
+            return keyGen.generateKeyPair();
+        } catch (NoSuchAlgorithmException ex) {
+            throw new InternalError(ex);
+        }
+    }
+
+    /**
+     * Asserts that the given {@link URI} is not {@code null} and refers to the Pebble
+     * server.
+     *
+     * @param uri
+     *            {@link URI} to assert
+     */
+    protected void assertIsPebbleUri(URI uri) {
+        assertThat(uri, not(nullValue()));
+
+        try {
+            URL url = uri.toURL();
+            assertThat(url.getProtocol(), is("http"));
+            assertThat(url.getHost(), is(pebbleHost));
+            assertThat(url.getPort(), is(pebblePort));
+            assertThat(url.getPath(), not(isEmptyOrNullString()));
+        } catch (MalformedURLException ex) {
+            throw new IllegalArgumentException(ex);
+        }
+    }
+
+}
diff --git a/acme4j-client/src/test/java/org/shredzone/acme4j/it/SessionIT.java b/acme4j-client/src/test/java/org/shredzone/acme4j/it/SessionIT.java
new file mode 100644
index 00000000..bf47f007
--- /dev/null
+++ b/acme4j-client/src/test/java/org/shredzone/acme4j/it/SessionIT.java
@@ -0,0 +1,72 @@
+/*
+ * acme4j - Java ACME client
+ *
+ * Copyright (C) 2017 Richard "Shred" Körber
+ *   http://acme4j.shredzone.org
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+package org.shredzone.acme4j.it;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.assertThat;
+import static uk.co.datumedge.hamcrest.json.SameJSONAs.sameJSONAs;
+
+import java.security.KeyPair;
+
+import org.junit.Test;
+import org.shredzone.acme4j.Metadata;
+import org.shredzone.acme4j.Session;
+import org.shredzone.acme4j.connector.Resource;
+import org.shredzone.acme4j.exception.AcmeException;
+
+/**
+ * Session related integration tests.
+ */
+public class SessionIT extends AbstractPebbleIT {
+
+    private final KeyPair keyPair = createKeyPair();
+
+    @Test
+    public void testNonce() throws AcmeException {
+        Session session = new Session(pebbleURI(), keyPair);
+
+        // No nonce yet on a fresh session
+        assertThat(session.getNonce(), is(nullValue()));
+
+        // Request directory, also providing a nonce
+        session.getMetadata();
+
+        // A nonce must be set now
+        assertThat(session.getNonce(), not(nullValue()));
+        assertThat(session.provider(), not(nullValue()));
+    }
+
+    @Test
+    public void testResources() throws AcmeException {
+        Session session = new Session(pebbleURI(), keyPair);
+
+        assertIsPebbleUri(session.resourceUri(Resource.NEW_NONCE));
+        assertIsPebbleUri(session.resourceUri(Resource.NEW_REG));
+    }
+
+    @Test
+    public void testMetadata() throws AcmeException {
+        Session session = new Session(pebbleURI(), keyPair);
+
+        Metadata meta = session.getMetadata();
+        assertThat(meta, not(nullValue()));
+
+        // Pebble does not currently deliver any metadata
+        assertThat(meta.getTermsOfService(), is(nullValue()));
+        assertThat(meta.getWebsite(), is(nullValue()));
+        assertThat(meta.getCaaIdentities(), is(empty()));
+        assertThat(meta.getJSON().toString(), sameJSONAs("{}"));
+    }
+
+}
diff --git a/pom.xml b/pom.xml
index c3ea136d..59e099bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,6 +55,7 @@
         <jose4j.version>0.5.3</jose4j.version>
         <slf4j.version>1.7.21</slf4j.version>
         <project.build.sourceEncoding>utf-8</project.build.sourceEncoding>
+        <skipITs>true</skipITs>
     </properties>
 
     <modules>
@@ -84,6 +85,19 @@
                     <excludedGroups>java.net.HttpURLConnection</excludedGroups>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <version>2.19.1</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>integration-test</goal>
+                            <goal>verify</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
diff --git a/src/site/markdown/index.md.vm b/src/site/markdown/index.md.vm
index bc2cfbd8..782b7d0b 100644
--- a/src/site/markdown/index.md.vm
+++ b/src/site/markdown/index.md.vm
@@ -35,3 +35,12 @@ There is also an optional utility module that will help you handling key pairs a
 ```
 
 Now just have a look at [this source code](https://github.com/shred/acme4j/blob/master/acme4j-example/src/main/java/org/shredzone/acme4j/ClientTest.java) to see an example usage.
+
+Running Integration Tests
+-------------------------
+
+_acme4j-client_ contains a number of integration tests. These tests are _not_ executed by maven by default, as they require a [Pebble ACME test server](https://github.com/letsencrypt/pebble).
+
+To run them, install and run a Pebble server instance on your build machine. Then invoke maven with the `-DskipITs=false` option set, to enable the integration tests at `verify` phase.
+
+If you are running a Pebble server on a different host and/or port, invoke maven with the `pebbleHost` and `pebblePort` system properties set to the appropriate host and port, respectively. For example, to connect to `acme.example.com` port 12345, use `-DpebbleHost=acme.example.com -DpebblePort=12345`.