diff --git a/scraper.py b/api.py
similarity index 100%
rename from scraper.py
rename to api.py
diff --git a/app.py b/app.py
index 323c375..a60a824 100644
--- a/app.py
+++ b/app.py
@@ -1,7 +1,7 @@
 from flask import Flask, render_template, request, send_file, jsonify
 from datetime import datetime
-from scraper import get_google_first_page
-import io, json, csv, yaml, os
+from api import get_google_first_page
+import io, json, csv, yaml, os, requests
 from dotenv import load_dotenv
 
 load_dotenv()
@@ -10,6 +10,7 @@ app = Flask(__name__)
 
 @app.route("/", methods=["GET"])
 def index():
+
     return render_template("index.html", results=[])
 
 @app.route("/search", methods=["POST"])
@@ -17,6 +18,7 @@ def search():
     query = request.form.get("q", "").strip()
     if not query:
         return render_template("index.html", error="Zadejte dotaz.")
+
     try:
         results = get_google_first_page(query)  # list of dicts
     except Exception as e:
@@ -32,6 +34,7 @@ def search():
 @app.route("/export", methods=["POST"])
 def export():
     data = request.get_json()
+
     ext = data.get("format", "json")
 
     results = data.get("results", [])
diff --git a/docker-compose.yml b/docker-compose.yml
index ca5f8ae..45d7e9c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,6 +11,6 @@ services:
     healthcheck:
       test: ["CMD-SHELL", "python -m pytest || exit 1"]
       interval: 1m
-      timeout: 20s
-      retries: 3
-      start_period: 20s
+      timeout: 10s
+      retries: 1
+      start_period: 10s
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..0db4d21
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,6 @@
+[pytest]
+# Show logs during test runs (not only on failures)
+log_cli = true
+log_cli_level = INFO
+log_format = %(asctime)s %(levelname)s %(name)s - %(message)s
+log_date_format = %H:%M:%S
diff --git a/templates/results.html b/templates/results.html
index 7d1b6a1..3f0c470 100644
--- a/templates/results.html
+++ b/templates/results.html
@@ -6,25 +6,42 @@
     <title>Výsledky pro "{{ query }}" - vontor.cz</title>
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
     <script>
-      function download(fmt) {
-        const payload = { format: fmt, results: JSON.parse(document.getElementById('json-data').textContent) };
+      function download(format) {
+        const resultsJsonElement = document.getElementById('json-data');
+        const results = JSON.parse(resultsJsonElement.textContent);
+        const requestPayload = { format, results };
+
         fetch('/export', {
           method: 'POST',
-          headers: {'Content-Type': 'application/json'},
-          body: JSON.stringify(payload)
-        }).then(r => {
-          if (r.ok) return r.blob();
-          return r.json().then(j=>{throw j});
-        }).then(blob=>{
-          const url = window.URL.createObjectURL(blob);
-          const a = document.createElement('a');
-          a.href = url;
-          a.download = 'results.' + fmt;
-          document.body.appendChild(a);
-          a.click();
-          a.remove();
-          window.URL.revokeObjectURL(url);
-        }).catch(e=>{ alert('Export failed: ' + JSON.stringify(e));});
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(requestPayload)
+        })
+        .then(function(response) {
+          if (response.ok){
+            return response.blob();
+          }
+
+          //error
+          return response.json().then(function(errorBody) { throw errorBody; });
+        })
+        .then(function(fileBlob) {
+          //blob
+          const objectUrl = window.URL.createObjectURL(fileBlob);
+
+          const downloadLink = document.createElement('a');
+
+          downloadLink.href = objectUrl;
+          downloadLink.download = 'results.' + format;
+          document.body.appendChild(downloadLink);
+
+          downloadLink.click();
+          downloadLink.remove();
+
+          window.URL.revokeObjectURL(objectUrl);
+        })
+        .catch(function(error) {
+          alert('Export failed: ' + JSON.stringify(error));
+        });
       }
     </script>
   </head>
diff --git a/tests/test_scraper.py b/tests/test_api.py
similarity index 53%
rename from tests/test_scraper.py
rename to tests/test_api.py
index 3f5d036..6ad14cb 100644
--- a/tests/test_scraper.py
+++ b/tests/test_api.py
@@ -1,8 +1,9 @@
 import os
+import logging
 import pytest
 from dotenv import load_dotenv
 
-import scraper
+import api
 
 
 def test_env_variables_present():
@@ -13,6 +14,10 @@ def test_env_variables_present():
 
     key = (os.getenv("GOOGLE_DEVELOPER_KEY") or "").strip()
     cx = (os.getenv("GOOGLE_CSE_ID") or "").strip()
+
+    # Log presence without exposing secrets
+    logging.info("GOOGLE_DEVELOPER_KEY present: %s", bool(key))
+    logging.info("GOOGLE_CSE_ID present: %s", bool(cx))
     assert key, "GOOGLE_DEVELOPER_KEY is missing or empty"
     assert cx, "GOOGLE_CSE_ID is missing or empty"
 
@@ -27,17 +32,24 @@ def test_integration_search_youtube(monkeypatch):
     cx = (os.getenv("GOOGLE_CSE_ID") or "").strip()
     
     if not key or not cx:
+        logging.warning("Skipping integration test: missing GOOGLE_DEVELOPER_KEY or GOOGLE_CSE_ID")
         pytest.skip("Integration test skipped: GOOGLE_DEVELOPER_KEY/GOOGLE_CSE_ID not set")
 
     # Speed up: don't wait during the test
-    monkeypatch.setattr(scraper, "RATE_SECONDS", 0)
-    monkeypatch.setattr(scraper, "last_api_call", 0)
+    monkeypatch.setattr(api, "RATE_SECONDS", 0)
+    monkeypatch.setattr(api, "last_api_call", 0)
 
     results = []
     try:
-        results = scraper.get_google_first_page("youtube")
+        logging.info("Calling get_google_first_page for query 'youtube'")
+        results = api.get_google_first_page("youtube")
+        logging.info("Received %d results. First title: %s", len(results), (results[0].get("title") if results else None))
+        
     except RuntimeError as e:
+        logging.error("API error during integration test: %s", e)
         return pytest.skip(f"Integration test skipped due to API error: {e}")
 
     assert isinstance(results, list) and len(results) > 0
-    assert any("youtube.com" in (item.get("link") or "") for item in results)
+    has_youtube = any("youtube.com" in (item.get("link") or "") for item in results)
+    logging.info("Contains youtube.com link: %s", has_youtube)
+    assert has_youtube