diff --git a/app/src/main/java/eu/faircode/netguard/ActivityLog.java b/app/src/main/java/eu/faircode/netguard/ActivityLog.java
index 32f24552..361ef714 100644
--- a/app/src/main/java/eu/faircode/netguard/ActivityLog.java
+++ b/app/src/main/java/eu/faircode/netguard/ActivityLog.java
@@ -195,7 +195,7 @@ public class ActivityLog extends AppCompatActivity implements SharedPreferences.
                 popup.getMenu().findItem(R.id.menu_protocol).setTitle(Util.getProtocolName(protocol, version, false));
 
                 // Whois
-                final Intent lookupIP = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.tcpiputils.com/whois-lookup/" + ip));
+                final Intent lookupIP = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.dnslytics.com/whois-lookup/" + ip));
                 if (pm.resolveActivity(lookupIP, 0) == null)
                     popup.getMenu().removeItem(R.id.menu_whois);
                 else
diff --git a/app/src/main/java/eu/faircode/netguard/AdapterRule.java b/app/src/main/java/eu/faircode/netguard/AdapterRule.java
index 71b4e0a9..32608de0 100644
--- a/app/src/main/java/eu/faircode/netguard/AdapterRule.java
+++ b/app/src/main/java/eu/faircode/netguard/AdapterRule.java
@@ -710,7 +710,7 @@ public class AdapterRule extends RecyclerView.Adapter<AdapterRule.ViewHolder> im
                     markPro(context, popup.getMenu().findItem(R.id.menu_block), ActivityPro.SKU_FILTER);
 
                     // Whois
-                    final Intent lookupIP = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.tcpiputils.com/whois-lookup/" + daddr));
+                    final Intent lookupIP = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.dnslytics.com/whois-lookup/" + daddr));
                     if (pm.resolveActivity(lookupIP, 0) == null)
                         popup.getMenu().removeItem(R.id.menu_whois);
                     else