diff --git a/.github/workflows/ci-test-frontend.yml b/.github/workflows/ci-test-frontend.yml
index e0f08feb..f3aaadcb 100644
--- a/.github/workflows/ci-test-frontend.yml
+++ b/.github/workflows/ci-test-frontend.yml
@@ -29,3 +29,6 @@ jobs:
 
       - run: npm run size
         working-directory: ./frontend
+
+      - run: npm run check:translation
+        working-directory: ./frontend
diff --git a/frontend/package.json b/frontend/package.json
index c77e76c7..b53c0c06 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -5,6 +5,7 @@
     "build": "webpack --mode production && es-check es5 './public/*.js'",
     "start": "webpack-dev-server --mode development",
     "check": "tsc -p tsconfig.json --noEmit --skipLibCheck",
+    "check:translation": "npm run extract-messages && node ./tasks/checkTranslation.js",
     "lint": "eslint --max-warnings=0 --ext=.ts,.tsx,.js,.jsx .",
     "lint:style": "stylelint '**/*.scss' '**/*.pcss' '**/*.css' 'iframe.html'",
     "test": "jest",
diff --git a/frontend/tasks/checkTranslation.js b/frontend/tasks/checkTranslation.js
new file mode 100644
index 00000000..111246b2
--- /dev/null
+++ b/frontend/tasks/checkTranslation.js
@@ -0,0 +1,24 @@
+const process = require('process');
+const locales = require('./supportedLocales');
+const { getLocalePath } = require('./getLocalePath');
+const { keys } = require('./getTranslationKeys');
+
+const errors = [];
+
+locales.forEach(locale => {
+  const dict = require(getLocalePath({ locale }));
+  const keysFromDict = Object.keys(dict);
+  keysFromDict.forEach(key => {
+    if (!keys.includes(key)) {
+      errors.push(
+        `"${key}" key not found in "${locale}" locale dict. Please run "npm run generate-langs" and commit changes.`
+      );
+    }
+    return null;
+  });
+});
+if (errors.length) {
+  // eslint-disable-next-line no-console
+  console.error(errors.join(`\n`));
+  process.exit(1);
+}
diff --git a/frontend/tasks/generateDictionary.js b/frontend/tasks/generateDictionary.js
index 0edd5153..53b3e4fb 100644
--- a/frontend/tasks/generateDictionary.js
+++ b/frontend/tasks/generateDictionary.js
@@ -1,20 +1,14 @@
 const fs = require('fs');
 const path = require('path');
-const defaultMessages = require('../extracted-messages/messages');
+const { keyMessagePairs, keys } = require('./getTranslationKeys');
+const { getLocalePath } = require('./getLocalePath');
 const { renderLoadLocale } = require('./localeLoadTemplate');
 const { getSupportedLocales } = require('./getSupportedLocales');
 
 const locales = getSupportedLocales();
 
-const keyMessagePairs = [];
-const keysSet = new Set();
-defaultMessages.forEach(({ id, defaultMessage }) => {
-  keyMessagePairs.push([id, defaultMessage]);
-  keysSet.add(id);
-});
-
 function removeAbandonedKeys(existKeys, dictionary) {
-  return Object.fromEntries(Object.entries(dictionary).filter(([key]) => existKeys.has(key)));
+  return Object.fromEntries(Object.entries(dictionary).filter(([key]) => existKeys.includes(key)));
 }
 
 function sortDict(dict) {
@@ -27,7 +21,7 @@ function sortDict(dict) {
 
 locales.forEach(locale => {
   let currentDict = {};
-  const pathToDict = path.resolve(__dirname, `../app/locales/${locale}.json`);
+  const pathToDict = getLocalePath({ locale });
   if (fs.existsSync(pathToDict)) {
     currentDict = require(pathToDict);
   }
@@ -36,7 +30,7 @@ locales.forEach(locale => {
       currentDict[key] = defaultMessage;
     }
   });
-  currentDict = removeAbandonedKeys(keysSet, currentDict);
+  currentDict = removeAbandonedKeys(keys, currentDict);
   currentDict = sortDict(currentDict);
   fs.writeFileSync(pathToDict, JSON.stringify(currentDict, null, 2) + '\n');
   fs.writeFileSync(
diff --git a/frontend/tasks/getLocalePath.js b/frontend/tasks/getLocalePath.js
new file mode 100644
index 00000000..a9f56ace
--- /dev/null
+++ b/frontend/tasks/getLocalePath.js
@@ -0,0 +1,6 @@
+const path = require('path');
+module.exports = {
+  getLocalePath({ locale }) {
+    return path.resolve(__dirname, `../app/locales/${locale}.json`);
+  },
+};
diff --git a/frontend/tasks/getTranslationKeys.js b/frontend/tasks/getTranslationKeys.js
new file mode 100644
index 00000000..870a0d70
--- /dev/null
+++ b/frontend/tasks/getTranslationKeys.js
@@ -0,0 +1,13 @@
+const defaultMessages = require('../extracted-messages/messages');
+
+const keyMessagePairs = [];
+const keys = [];
+defaultMessages.forEach(({ id, defaultMessage }) => {
+  keyMessagePairs.push([id, defaultMessage]);
+  keys.push(id);
+});
+
+module.exports = {
+  keyMessagePairs,
+  keys,
+};