diff --git a/src/applications/conduit/method/ConduitAPIMethod.php b/src/applications/conduit/method/ConduitAPIMethod.php
index f8a9ec0a9d..281c8ed1e7 100644
--- a/src/applications/conduit/method/ConduitAPIMethod.php
+++ b/src/applications/conduit/method/ConduitAPIMethod.php
@@ -136,25 +136,6 @@ abstract class ConduitAPIMethod
     return str_replace('_', '.', $method_fragment);
   }
 
-  protected function validateHost($host) {
-    // NOTE: Compare domains only so we aren't sensitive to port specification
-    // or omission.
-
-    $host = new PhutilURI($host);
-    $host = $host->getDomain();
-
-    $self = new PhutilURI(PhabricatorEnv::getURI('/'));
-    $self = $self->getDomain();
-
-    if ($self !== $host) {
-      throw new Exception(
-        "Your client is connecting to this install as '{$host}', but it is ".
-        "configured as '{$self}'. The client and server must use the exact ".
-        "same URI to identify the install. Edit your .arcconfig or ".
-        "phabricator/conf so they agree on the URI for the install.");
-    }
-  }
-
   protected function formatStringConstants($constants) {
     foreach ($constants as $key => $value) {
       $constants[$key] = '"'.$value.'"';
diff --git a/src/applications/conduit/method/ConduitAPI_conduit_connect_Method.php b/src/applications/conduit/method/ConduitAPI_conduit_connect_Method.php
index 5547ee37c6..351d9b4a8c 100644
--- a/src/applications/conduit/method/ConduitAPI_conduit_connect_Method.php
+++ b/src/applications/conduit/method/ConduitAPI_conduit_connect_Method.php
@@ -25,7 +25,7 @@ final class ConduitAPI_conduit_connect_Method extends ConduitAPIMethod {
       'user'                => 'optional string',
       'authToken'           => 'optional int',
       'authSignature'       => 'optional string',
-      'host'                => 'required string',
+      'host'                => 'deprecated',
     );
   }
 
@@ -56,8 +56,6 @@ final class ConduitAPI_conduit_connect_Method extends ConduitAPIMethod {
 
   protected function execute(ConduitAPIRequest $request) {
 
-    $this->validateHost($request->getValue('host'));
-
     $client = $request->getValue('client');
     $client_version = (int)$request->getValue('clientVersion');
     $client_description = (string)$request->getValue('clientDescription');
diff --git a/src/applications/conduit/method/ConduitAPI_conduit_getcertificate_Method.php b/src/applications/conduit/method/ConduitAPI_conduit_getcertificate_Method.php
index c4ffcf1895..d8db634c5b 100644
--- a/src/applications/conduit/method/ConduitAPI_conduit_getcertificate_Method.php
+++ b/src/applications/conduit/method/ConduitAPI_conduit_getcertificate_Method.php
@@ -39,8 +39,6 @@ final class ConduitAPI_conduit_getcertificate_Method extends ConduitAPIMethod {
   }
 
   protected function execute(ConduitAPIRequest $request) {
-    $this->validateHost($request->getValue('host'));
-
     $failed_attempts = PhabricatorUserLog::loadRecentEventsFromThisIP(
       PhabricatorUserLog::ACTION_CONDUIT_CERTIFICATE_FAILURE,
       60 * 5);