diff --git a/mod/dfrn_request.php b/mod/dfrn_request.php
index f5716e8ff5..f8e4c90236 100644
--- a/mod/dfrn_request.php
+++ b/mod/dfrn_request.php
@@ -294,7 +294,7 @@ function dfrn_request_post(App $a)
 		$hcard = '';
 
 		// Detect the network
-		$data = Probe::uri($url);
+		$data = Contact::getByURL($url);
 		$network = $data["network"];
 
 		// Canonicalize email-style profile locator
diff --git a/mod/ostatus_subscribe.php b/mod/ostatus_subscribe.php
index 64774eead9..751afcc731 100644
--- a/mod/ostatus_subscribe.php
+++ b/mod/ostatus_subscribe.php
@@ -23,7 +23,6 @@ use Friendica\App;
 use Friendica\Core\Protocol;
 use Friendica\DI;
 use Friendica\Model\Contact;
-use Friendica\Network\Probe;
 use Friendica\Util\Network;
 
 function ostatus_subscribe_content(App $a)
@@ -47,7 +46,7 @@ function ostatus_subscribe_content(App $a)
 			return $o . DI::l10n()->t('No contact provided.');
 		}
 
-		$contact = Probe::uri($_REQUEST['url']);
+		$contact = Contact::getByURL($_REQUEST['url']);
 		if (!$contact) {
 			DI::pConfig()->delete($uid, 'ostatus', 'legacy_contact');
 			return $o . DI::l10n()->t('Couldn\'t fetch information for contact.');
@@ -88,7 +87,7 @@ function ostatus_subscribe_content(App $a)
 
 	$o .= '<p>' . $counter . '/' . $total . ': ' . $url;
 
-	$probed = Probe::uri($url);
+	$probed = Contact::getByURL($url);
 	if ($probed['network'] == Protocol::OSTATUS) {
 		$result = Contact::createFromProbe($a->user, $probed['url'], true, Protocol::OSTATUS);
 		if ($result['success']) {
diff --git a/src/Model/GServer.php b/src/Model/GServer.php
index 704d091a66..fdbc775098 100644
--- a/src/Model/GServer.php
+++ b/src/Model/GServer.php
@@ -37,7 +37,6 @@ use Friendica\Core\Logger;
 use Friendica\Core\System;
 use Friendica\Protocol\PortableContact;
 use Friendica\Protocol\Diaspora;
-use Friendica\Network\Probe;
 
 /**
  * This class handles GServer related functions
@@ -980,8 +979,8 @@ class GServer
 		}
 
 		foreach ($contacts as $contact) {
-			$probed = Probe::uri($contact);
-			if (in_array($probed['network'], Protocol::FEDERATED)) {
+			$probed = Contact::getByURL($contact);
+			if (!empty($probed) && in_array($probed['network'], Protocol::FEDERATED)) {
 				$serverdata['network'] = $probed['network'];
 				break;
 			}
diff --git a/src/Model/Mail.php b/src/Model/Mail.php
index 4056352151..67d5d1ddca 100644
--- a/src/Model/Mail.php
+++ b/src/Model/Mail.php
@@ -27,7 +27,6 @@ use Friendica\Core\Worker;
 use Friendica\DI;
 use Friendica\Database\DBA;
 use Friendica\Model\Notify\Type;
-use Friendica\Network\Probe;
 use Friendica\Protocol\Activity;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Worker\Delivery;
@@ -267,7 +266,7 @@ class Mail
 		$guid = System::createUUID();
 		$uri = Item::newURI(local_user(), $guid);
 
-		$me = Probe::uri($replyto);
+		$me = Contact::getByURL($replyto);
 		if (!$me['name']) {
 			return -2;
 		}
diff --git a/src/Module/Acctlink.php b/src/Module/Acctlink.php
index f80ea4c73c..bdcc3cf6ff 100644
--- a/src/Module/Acctlink.php
+++ b/src/Module/Acctlink.php
@@ -22,8 +22,8 @@
 namespace Friendica\Module;
 
 use Friendica\BaseModule;
-use Friendica\Network\Probe;
 use Friendica\Core\System;
+use Friendica\Model\Contact;
 
 /**
  * Redirects to another URL based on the parameter 'addr'
@@ -35,9 +35,9 @@ class Acctlink extends BaseModule
 		$addr = trim($_GET['addr'] ?? '');
 
 		if ($addr) {
-			$url = Probe::uri($addr)['url'] ?? '';
+			$url = Contact::getByURL($addr)['url'] ?? '';
 			if ($url) {
-				System::externalRedirect($url);
+				System::externalRedirect($url['url']);
 				exit();
 			}
 		}
diff --git a/src/Module/RemoteFollow.php b/src/Module/RemoteFollow.php
index bf71b077fd..274ed3d06d 100644
--- a/src/Module/RemoteFollow.php
+++ b/src/Module/RemoteFollow.php
@@ -28,6 +28,7 @@ use Friendica\Core\Protocol;
 use Friendica\Core\Renderer;
 use Friendica\Core\Search;
 use Friendica\Core\System;
+use Friendica\Model\Contact;
 use Friendica\Model\Profile;
 use Friendica\Network\Probe;
 
@@ -61,8 +62,8 @@ class RemoteFollow extends BaseModule
 		}
 
 		// Detect the network, make sure the provided URL is valid
-		$data = Probe::uri($url);
-		if ($data['network'] == Protocol::PHANTOM) {
+		$data = Contact::getByURL($url);
+		if (!$data) {
 			notice(DI::l10n()->t("The provided profile link doesn't seem to be valid"));
 			return;
 		}
diff --git a/src/Worker/Notifier.php b/src/Worker/Notifier.php
index c7b61dacca..99b97adc8d 100644
--- a/src/Worker/Notifier.php
+++ b/src/Worker/Notifier.php
@@ -354,23 +354,23 @@ class Notifier
 				// Send a salmon to the parent author
 				$probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['author-id']]);
 				if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
-					Logger::log('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
+					Logger::notice('Notify parent author', ['url' => $probed_contact["url"], 'notify' => $probed_contact["notify"]]);
 					$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 				}
 
 				// Send a salmon to the parent owner
 				$probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['owner-id']]);
 				if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
-					Logger::log('Notify parent owner '.$probed_contact["url"].': '.$probed_contact["notify"]);
+					Logger::notice('Notify parent owner', ['url' => $probed_contact["url"], 'notify' => $probed_contact["notify"]]);
 					$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 				}
 
 				// Send a salmon notification to every person we mentioned in the post
 				foreach (Tag::getByURIId($target_item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION, Tag::IMPLICIT_MENTION]) as $tag) {
-					$probed_contact = Probe::uri($tag['url']);
-					if ($probed_contact["notify"] != "") {
-						Logger::log('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
-						$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
+					$probed_contact = Contact::getByURL($tag['url']);
+					if (!empty($probed_contact['notify'])) {
+						Logger::notice('Notify mentioned user', ['url' => $probed_contact["url"], 'notify' => $probed_contact["notify"]]);
+						$url_recipients[$probed_contact['notify']] = $probed_contact['notify'];
 					}
 				}