diff --git a/examples/gsheets/data-config.js b/examples/gsheets/data-config.js
index 42a636382..c3d909821 100644
--- a/examples/gsheets/data-config.js
+++ b/examples/gsheets/data-config.js
@@ -26,7 +26,6 @@ var data_config = {
 
     content_based: true,
     is_evaluation: true,
-    evaluation_service: ["matomo"],
 
     is_force_areas: true,
     area_force_alpha: 0.03,
diff --git a/examples/project_website/data-config_base.js b/examples/project_website/data-config_base.js
index 3907d6697..c9fd4d020 100644
--- a/examples/project_website/data-config_base.js
+++ b/examples/project_website/data-config_base.js
@@ -38,7 +38,6 @@ var data_config = {
   show_keywords: true,
 
   is_evaluation: true,
-  evaluation_service: ["matomo"],
 
   use_hypothesis: true,
 
diff --git a/examples/project_website/data-config_pubmed.js b/examples/project_website/data-config_pubmed.js
index 97e4f8710..d7aca734a 100644
--- a/examples/project_website/data-config_pubmed.js
+++ b/examples/project_website/data-config_pubmed.js
@@ -37,7 +37,6 @@ var data_config = {
 	show_keywords: true,
     
     is_evaluation: true,
-    evaluation_service: ["matomo"],
 
     use_hypothesis: true,
     
diff --git a/examples/viper/js/data-config_openaire.js b/examples/viper/js/data-config_openaire.js
index 405117c30..57e853b56 100644
--- a/examples/viper/js/data-config_openaire.js
+++ b/examples/viper/js/data-config_openaire.js
@@ -64,7 +64,6 @@ var data_config = {
     },
     
     is_evaluation: true,
-    evaluation_service: ["ga", "matomo"],
     
     use_hypothesis: true,
     
diff --git a/vis/js/default-config.js b/vis/js/default-config.js
index 81423a107..2a5545f12 100644
--- a/vis/js/default-config.js
+++ b/vis/js/default-config.js
@@ -94,8 +94,6 @@ var config = {
     show_loading_screen: false,
     //evaluation mode/events logging
     is_evaluation: false,
-    //which evaluation service to use. can also be an array. currently possible: "log", "matomo" and "ga"
-    evaluation_service: "log",
     //enable logging of mouseover events (use only temporarily as it creates A LOT of logging events)
     enable_mouseover_evaluation: false,
     //whether to embed the okmaps credit
diff --git a/vis/js/headstart.js b/vis/js/headstart.js
index 9128a0602..f062b251e 100644
--- a/vis/js/headstart.js
+++ b/vis/js/headstart.js
@@ -32,68 +32,6 @@ HeadstartFSM.prototype = {
     }
   },
 
-  // TODO delete this completely
-  recordAction: function(id, category, action, user, timestamp, additional_params, post_data) {
-
-    if(!config.is_evaluation) {
-      return;
-    }
-
-    let services = config.evaluation_service;
-
-    if(typeof services === "string") {
-        services = [services];
-    }
-
-    if (services.includes("log")) {
-        this.recordActionLog(category, action, id, user, timestamp, additional_params, post_data);
-    }
-    if (services.includes("ga")) {
-        this.recordActionGA(category, action, id, user, timestamp, additional_params, post_data);
-    }
-  },
-
-  recordActionLog: function(id, category, action, user, type, timestamp, additional_params, post_data) {
-    timestamp = (typeof timestamp !== 'undefined') ? (escape(timestamp)) : ("");
-    additional_params = (typeof additional_params !== 'undefined') ? ('&' + additional_params) : ("");
-    if(typeof post_data !== 'undefined') {
-      post_data = {post_data:post_data};
-    } else {
-      post_data = {};
-    }
-
-    let php_script = config.server_url + "services/writeActionToLog.php";
-
-    $.ajax({
-        url: php_script +
-        '?user=' + user +
-        '&category=' + category +
-        '&action=' + action +
-        '&item=' + encodeURI(id) +
-        '&type=' + type +
-        '&item_timestamp=' + timestamp + additional_params + '&jsoncallback=?',
-        type: "POST",
-        data: post_data,
-        dataType: "json",
-        success: function(output) {
-            console.log(output);
-        }
-    });
-  },
-
-  recordActionGA: function(category, action, id) {
-    //gtag.js
-    if(typeof gtag === "function") {
-        gtag('event', action, {
-          'event_category': category,
-          'event_label': id
-        });
-    //analytics.js
-    } else if (typeof ga === "function") {
-      ga('send', 'event', category, action, id);
-    }
-  },
-
   markProjectChanged: function (id) {
 
     let php_script = config.server_url + "services/markProjectChanged.php";
diff --git a/vis/js/mediator.js b/vis/js/mediator.js
index a68ec6a4b..2e49f1eb1 100644
--- a/vis/js/mediator.js
+++ b/vis/js/mediator.js
@@ -32,7 +32,7 @@ var MyMediator = function() {
     this.fileData = [];
     this.mediator = new Mediator();
     this.manager = new ModuleManager();
-    this.intermediate_layer = new Intermediate(this.rescale_map, this.record_action);
+    this.intermediate_layer = new Intermediate(this.rescale_map);
     this.init();
     this.init_state();
 };
@@ -55,9 +55,6 @@ MyMediator.prototype = {
 
         // bubbles events
         this.mediator.subscribe("bubbles_update_data_and_areas", this.bubbles_update_data_and_areas);
-
-        // misc
-        this.mediator.subscribe("record_action", this.record_action);
     },
 
     init_state: function() {
@@ -151,10 +148,6 @@ MyMediator.prototype = {
         mediator.render_frontend();
     },
 
-    record_action: function(id, category, action, user, type, timestamp, additional_params, post_data) {
-        window.headstartInstance.recordAction(id, category, action, user, type, timestamp, additional_params, post_data);
-    },
-
     dimensions_update: function() {
         mediator.intermediate_layer.updateDimensions(config, io.context);
     },