Add sitemap.xml and robots.txt for SEO optimization

- Remove unused imports (abort, g, ngettext) from app.py
- Remove unused variables (werktage, datumsrechnung, werktagsrechnung, wochen_monate)
- Update Flask from 3.0.0 to 3.1.1
- Update requests from 2.31.0 to 2.32.4
- Update pytest from 7.4.3 to 8.4.1
- Update numpy from 1.26.4 to 2.3.2 (safe migration based on NumPy 2.0 guide)
- Add pytest to requirements.txt (was missing)

README.md

@@ -42,7 +42,7 @@ Diese moderne Python-Webanwendung (Flask) ermöglicht verschiedene Datumsberechn
 
 Datumsrechner Live: [https://date.elpatron.me](https://date.elpatron.me)
 
-![App Screenshot](./assets/image-20250725095959116.png)
+[![App Screenshot](./assets/image-20250725095959116.png)](https://date.elpatron.me)
 
 **[Lighthouse](https://en.wikipedia.org/wiki/Lighthouse_(software))-Performance-Score:** 
 

app.py

@@ -1,5 +1,5 @@
-from flask import Flask, render_template, request, redirect, url_for, session, abort, jsonify, g, make_response
+from flask import Flask, render_template, request, redirect, url_for, session, jsonify, make_response
-from flask_babel import Babel, gettext, ngettext, get_locale
+from flask_babel import Babel, gettext, get_locale
 from datetime import datetime, timedelta
 import numpy as np
 from dateutil.relativedelta import relativedelta
@@ -20,7 +20,7 @@ app.config['BABEL_TRANSLATION_DIRECTORIES'] = 'translations'
 babel = Babel()
 
 # Version der App
-APP_VERSION = "1.4.13"
+APP_VERSION = "1.4.15"
 
 def add_cache_headers(response):
     """Fügt Cache-Control-Header hinzu, die den Back-Forward-Cache ermöglichen"""
@@ -118,7 +118,7 @@ def index():
     with open(log_path, 'a', encoding='utf-8') as f:
         from datetime import datetime as dt
         f.write(f"{dt.now().isoformat()} PAGEVIEW\n")
-    tage = werktage = wochentag = datumsrechnung = werktagsrechnung = kw_berechnen = kw_datum = wochen_monate = None
+    tage = wochentag = kw_berechnen = kw_datum = None
     feiertage_anzahl = wochenendtage_anzahl = None
     active_idx = 0
     plusminus_result = None
@@ -245,7 +245,7 @@ def index():
                             plusminus_result = f"Datum {d.strftime('%d.%m.%Y')} {'plus' if anzahl_int>=0 else 'minus'} {abs(anzahl_int)} Monate: {result.strftime('%d.%m.%Y')}"
             except Exception:
                 plusminus_result = gettext('Ungültige Eingabe')
-    response = make_response(render_template('index.html', tage=tage, werktage=werktage, wochentag=wochentag, plusminus_result=plusminus_result, kw_berechnen=kw_berechnen, kw_datum=kw_datum, active_idx=active_idx
+    response = make_response(render_template('index.html', tage=tage, wochentag=wochentag, plusminus_result=plusminus_result, kw_berechnen=kw_berechnen, kw_datum=kw_datum, active_idx=active_idx
         , feiertage_anzahl=feiertage_anzahl, wochenendtage_anzahl=wochenendtage_anzahl, app_version=APP_VERSION, get_locale=get_locale
     ))
     return add_cache_headers(response)
@@ -321,10 +321,13 @@ def stats():
                 session['stats_auth'] = True
                 return redirect(url_for('stats'))
             else:
-                        response = make_response(render_template('stats_login.html', error='Falsches Passwort!'))
+                response = make_response(render_template('stats_login.html', error='Falsches Passwort!'))
-        return add_cache_headers(response)
+                return add_cache_headers(response)
-    response = make_response(render_template('stats_login.html', error=None))
+        else:
-    return add_cache_headers(response)
+            response = make_response(render_template('stats_login.html', error=None))
+            return add_cache_headers(response)
+    
+    # Wenn authentifiziert, zeige Dashboard
     log_path = os.path.join('log', 'pageviews.log')
     pageviews, func_counts, func_counts_hourly, impressions_per_day, impressions_per_hour, api_counts, api_counts_hourly = parse_log_stats(log_path)
     response = make_response(render_template('stats_dashboard.html', pageviews=pageviews, func_counts=func_counts, func_counts_hourly=func_counts_hourly, impressions_per_day=impressions_per_day, impressions_per_hour=impressions_per_hour, api_counts=api_counts, api_counts_hourly=api_counts_hourly))
@@ -500,6 +503,12 @@ def api_docs():
     response = make_response(render_template('swagger.html'))
     return add_cache_headers(response)
 
+@app.route('/sitemap.xml')
+def sitemap():
+    """Serviert die Sitemap für Suchmaschinen"""
+    from flask import send_file
+    return send_file('sitemap.xml', mimetype='application/xml')
+
 
 if __name__ == '__main__':
     app.run(debug=True, host="0.0.0.0")

requirements.txt

@@ -1,5 +1,6 @@
-Flask==3.0.0
+Flask==3.1.1
-numpy==1.26.4
+numpy==2.3.2
 python-dateutil==2.9.0.post0
-requests==2.31.0
+requests==2.32.4
 Flask-Babel==4.0.0
+pytest==8.4.1 

robots.txt

@@ -1,2 +1,14 @@
 User-agent: *
 Allow: /
+
+# Sitemap
+Sitemap: https://date.elpatron.me/sitemap.xml
+
+# Disallow private areas
+Disallow: /stats
+Disallow: /log/
+Disallow: /htmlcov/
+
+# Allow API endpoints for documentation
+Allow: /api-docs
+Allow: /static/swagger.json 

sitemap.xml

@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <!-- Hauptseite -->
+  <url>
+    <loc>https://date.elpatron.me/</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+  
+  <!-- API-Dokumentation -->
+  <url>
+    <loc>https://date.elpatron.me/api-docs</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  
+  <!-- Statische Ressourcen -->
+  <url>
+    <loc>https://date.elpatron.me/static/favicon.ico</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>yearly</changefreq>
+    <priority>0.1</priority>
+  </url>
+  
+  <url>
+    <loc>https://date.elpatron.me/static/favicon.png</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>yearly</changefreq>
+    <priority>0.1</priority>
+  </url>
+  
+  <url>
+    <loc>https://date.elpatron.me/static/favicon.svg</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>yearly</changefreq>
+    <priority>0.1</priority>
+  </url>
+  
+  <url>
+    <loc>https://date.elpatron.me/static/logo.svg</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>yearly</changefreq>
+    <priority>0.1</priority>
+  </url>
+  
+  <url>
+    <loc>https://date.elpatron.me/static/manifest.json</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>0.3</priority>
+  </url>
+  
+  <url>
+    <loc>https://date.elpatron.me/static/service-worker.js</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>0.3</priority>
+  </url>
+  
+  <url>
+    <loc>https://date.elpatron.me/static/swagger.json</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>0.5</priority>
+  </url>
+  
+  <!-- Sprachversionen der Hauptseite -->
+  <url>
+    <loc>https://date.elpatron.me/?lang=de</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+  
+  <url>
+    <loc>https://date.elpatron.me/?lang=en</loc>
+    <lastmod>2025-08-03</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+</urlset> 

templates/index.html

@@ -498,9 +498,9 @@ button:focus, .accordion-header:focus {
     position: absolute;
     top: 0.5em;
     right: 0.5em;
-    background: rgba(37, 99, 235, 0.15);
+    background: #ffffff;
-    color: var(--primary-dark);
+    color: #000000;
-    border: 1px solid var(--border);
+    border: 2px solid #000000;
     border-radius: 4px;
     padding: 0.3em 0.6em;
     font-size: 0.8em;
@@ -514,19 +514,20 @@ button:focus, .accordion-header:focus {
     z-index: 5;
 }
 .read-aloud-btn:hover {
-    background: rgba(37, 99, 235, 0.25);
+    background: #f0f0f0;
-    border-color: var(--primary);
+    border-color: #333333;
 }
 .read-aloud-btn:focus {
     outline: 3px solid #facc15;
     outline-offset: 2px;
     box-shadow: 0 0 0 4px #1e293b;
-    background: rgba(37, 99, 235, 0.25);
+    background: #f0f0f0;
-    border-color: var(--primary);
+    border-color: #333333;
 }
 .read-aloud-btn.playing {
-    background: var(--primary);
+    background: #000000;
-    color: white;
+    color: #ffffff;
+    border-color: #000000;
 }
 .accordion {
     border-radius: 12px;
@@ -1499,7 +1500,7 @@ footer br + a {
                             {% if request.form.get('werktage') %}
                                 {{ _('Anzahl der Werktage zwischen') }} <b>{{ format_date(request.form.get('start1', '')) }}</b> {{ _('und') }} <b>{{ format_date(request.form.get('end1', '')) }}:</b>{% if request.form.get('bundesland') %} {{ _('(Feiertage:') }} {{ request.form.get('bundesland') }}){% endif %}: {{ tage }}
                             {% else %}
-                                {{ _('Anzahl der Tage zwischen') }} <b>{{ format_date(request.form.get('start1', '')) }}</b> {{ _('und') }} <b>{{ format_date(request.form.get('end1', '')) }}</b>: {{ tage }}.
+                                {{ _('Anzahl der Tage zwischen') }} <b>{{ format_date(request.form.get('start1', '')) }}</b> {{ _('und') }} <b>{{ format_date(request.form.get('end1', '')) }}</b>: {{ tage }}
                             {% endif %}
                             {% if wochenendtage_anzahl is not none or (feiertage_anzahl is not none and request.form.get('bundesland')) %}
                                 <br>