feat: 4 banner check upgrades — 30 CMPs, stealth, Shadow DOM, categories

1. 30 CMP selectors (was 10): Added Sourcepoint, Iubenda, Complianz,
   CookieFirst, HubSpot, Osano, Piwik PRO, Cookie Consent (Insites),
   Axeptio, Termly, CookieScript, Civic UK, GDPR Cookie Compliance,
   CookieHub, Ketch, Admiral, Sibbo, Evidon, LiveRamp, Adsimple.
   Plus improved generic fallback: role=dialog, aria-label, data-* attrs.

2. Playwright stealth mode: playwright-stealth against bot detection.
   Removes WebDriver flag, simulates plugins, realistic viewport/locale.
   Launch args: --disable-blink-features=AutomationControlled.

3. Shadow DOM: Recursive JS-based search through shadowRoot elements
   for consent banners. Fallback click via page.evaluate() when
   normal Playwright selectors can't penetrate Shadow DOM.

4. Category selection UI: User can choose which cookie categories to
   test (Notwendig, Statistik, Marketing, Funktional, Praeferenzen).
   Pill-style checkboxes in BannerCheckTab, forwarded through API chain.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

admin-compliance/app/api/sdk/v1/agent/banner-check/route.ts

@@ -11,7 +11,7 @@ const BACKEND_URL = process.env.BACKEND_API_URL || 'http://backend-compliance:80
 export async function POST(request: NextRequest) {
   try {
     const body = await request.json()
-    const { url } = body
+    const { url, categories = [] } = body
 
     if (!url) {
       return NextResponse.json({ error: 'URL erforderlich' }, { status: 400 })
@@ -21,7 +21,7 @@ export async function POST(request: NextRequest) {
     const response = await fetch(`${BACKEND_URL}/api/compliance/agent/banner-check`, {
       method: 'POST',
       headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ url }),
+      body: JSON.stringify({ url, categories }),
       signal: AbortSignal.timeout(120000), // 2 min for Playwright
     })
 

admin-compliance/app/sdk/agent/_components/BannerCheckTab.tsx

@@ -33,12 +33,34 @@ interface BannerResult {
   }
 }
 
+const CATEGORIES = [
+  { id: 'all', label: 'Alle Kategorien' },
+  { id: 'necessary', label: 'Notwendig' },
+  { id: 'statistics', label: 'Statistik' },
+  { id: 'marketing', label: 'Marketing' },
+  { id: 'functional', label: 'Funktional' },
+  { id: 'preferences', label: 'Praeferenzen' },
+]
+
 export function BannerCheckTab() {
   const [url, setUrl] = useState('')
   const [loading, setLoading] = useState(false)
   const [progress, setProgress] = useState('')
   const [error, setError] = useState<string | null>(null)
   const [result, setResult] = useState<BannerResult | null>(null)
+  const [categories, setCategories] = useState<string[]>(['all'])
+
+  const toggleCategory = (id: string) => {
+    if (id === 'all') {
+      setCategories(['all'])
+      return
+    }
+    setCategories(prev => {
+      const without = prev.filter(c => c !== 'all' && c !== id)
+      const next = prev.includes(id) ? without : [...without, id]
+      return next.length === 0 ? ['all'] : next
+    })
+  }
 
   const handleScan = async (e: React.FormEvent) => {
     e.preventDefault()
@@ -49,11 +71,16 @@ export function BannerCheckTab() {
     setResult(null)
     setProgress('Cookie-Banner wird analysiert...')
 
+    // 'all' selected = empty array (test everything)
+    const selectedCategories = categories.includes('all')
+      ? []
+      : categories
+
     try {
       const res = await fetch('/api/sdk/v1/agent/banner-check', {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ url: url.trim() }),
+        body: JSON.stringify({ url: url.trim(), categories: selectedCategories }),
       })
       if (!res.ok) throw new Error(`Fehler: ${res.status}`)
       const data = await res.json()
@@ -94,22 +121,55 @@ export function BannerCheckTab() {
         </p>
       </div>
 
-      <form onSubmit={handleScan} className="flex gap-3">
-        <input
-          type="url" value={url} onChange={e => setUrl(e.target.value)}
-          placeholder="https://www.example.com/"
-          className="flex-1 px-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent text-sm"
-          disabled={loading} required
-        />
-        <button type="submit" disabled={loading || !url.trim()}
-          className="px-6 py-3 bg-purple-600 text-white rounded-lg hover:bg-purple-700 disabled:opacity-50 transition-colors flex items-center gap-2 text-sm font-medium">
-          {loading ? (
-            <><svg className="animate-spin w-4 h-4" fill="none" viewBox="0 0 24 24">
-              <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
-              <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
-            </svg>Pruefe...</>
-          ) : 'Banner pruefen'}
-        </button>
+      <form onSubmit={handleScan} className="space-y-3">
+        <div className="flex gap-3">
+          <input
+            type="url" value={url} onChange={e => setUrl(e.target.value)}
+            placeholder="https://www.example.com/"
+            className="flex-1 px-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent text-sm"
+            disabled={loading} required
+          />
+          <button type="submit" disabled={loading || !url.trim()}
+            className="px-6 py-3 bg-purple-600 text-white rounded-lg hover:bg-purple-700 disabled:opacity-50 transition-colors flex items-center gap-2 text-sm font-medium whitespace-nowrap">
+            {loading ? (
+              <><svg className="animate-spin w-4 h-4" fill="none" viewBox="0 0 24 24">
+                <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
+                <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
+              </svg>Pruefe...</>
+            ) : 'Banner pruefen'}
+          </button>
+        </div>
+
+        <div className="flex flex-wrap gap-2">
+          {CATEGORIES.map(cat => (
+            <label key={cat.id}
+              className={`inline-flex items-center gap-1.5 px-3 py-1.5 rounded-full text-xs font-medium cursor-pointer border transition-colors ${
+                categories.includes(cat.id)
+                  ? 'bg-purple-100 border-purple-300 text-purple-800'
+                  : 'bg-gray-50 border-gray-200 text-gray-600 hover:bg-gray-100'
+              }`}
+            >
+              <input
+                type="checkbox"
+                checked={categories.includes(cat.id)}
+                onChange={() => toggleCategory(cat.id)}
+                className="sr-only"
+              />
+              <span className={`w-3 h-3 rounded-sm border flex items-center justify-center ${
+                categories.includes(cat.id)
+                  ? 'bg-purple-600 border-purple-600'
+                  : 'border-gray-400'
+              }`}>
+                {categories.includes(cat.id) && (
+                  <svg className="w-2 h-2 text-white" fill="currentColor" viewBox="0 0 12 12">
+                    <path d="M10 3L4.5 8.5 2 6" stroke="currentColor" strokeWidth="2" fill="none" strokeLinecap="round" strokeLinejoin="round" />
+                  </svg>
+                )}
+              </span>
+              {cat.label}
+            </label>
+          ))}
+        </div>
       </form>
 
       {progress && (

backend-compliance/compliance/api/agent_doc_check_routes.py

@@ -94,6 +94,7 @@ class DocCheckStatusResponse(BaseModel):
 
 class BannerCheckRequest(BaseModel):
     url: str
+    categories: list[str] = []  # empty = test all categories
 
 
 @router.post("/banner-check")
@@ -103,7 +104,11 @@ async def run_banner_check(req: BannerCheckRequest):
         async with httpx.AsyncClient(timeout=120.0) as client:
             resp = await client.post(
                 f"{CONSENT_TESTER_URL}/scan",
-                json={"url": req.url, "timeout_per_phase": 10},
+                json={
+                    "url": req.url,
+                    "timeout_per_phase": 10,
+                    "categories": req.categories,
+                },
             )
             if resp.status_code == 200:
                 return resp.json()

consent-tester/main.py

@@ -34,6 +34,7 @@ app.add_middleware(
 class ScanRequest(BaseModel):
     url: str
     timeout_per_phase: int = 10  # seconds to wait after page load
+    categories: list[str] = []  # empty = test all categories
 
 
 class ScanResponse(BaseModel):
@@ -59,7 +60,7 @@ async def health():
 async def scan_consent(req: ScanRequest):
     """Run 3-phase consent test on a URL."""
     logger.info("Starting consent test for %s", req.url)
-    result = await run_consent_test(req.url, req.timeout_per_phase)
+    result = await run_consent_test(req.url, req.timeout_per_phase, req.categories)
 
     # Build raw response dict for structured check mapping
     phases = {

consent-tester/requirements.txt

@@ -1,4 +1,5 @@
 fastapi==0.115.12
 uvicorn==0.34.2
 playwright==1.52.0
+playwright-stealth==1.0.6
 pydantic>=2.0

consent-tester/services/banner_detector.py

@@ -1,12 +1,12 @@
 """
 Banner Detector — identifies Consent Management Platforms and their buttons.
 
-Supports 10+ CMPs with specific selectors + generic fallback.
+Supports 30 CMPs with specific selectors + generic fallback + Shadow DOM.
 """
 
 from dataclasses import dataclass
 
-from playwright.async_api import Page, Locator
+from playwright.async_api import Page
 
 
 @dataclass
@@ -79,6 +79,127 @@ CMP_SELECTORS = [
         "accept": "#tarteaucitronPersonalize2",
         "reject": "#tarteaucitronAllDenied2",
     },
+    # --- 20 additional CMPs ---
+    {
+        "name": "Sourcepoint",
+        "detect": "div[id^='sp_message']",
+        "accept": ".sp_choice_type_11",
+        "reject": ".sp_choice_type_13",
+    },
+    {
+        "name": "Axeptio",
+        "detect": "#axeptio_widget",
+        "accept": "[data-ax='accept']",
+        "reject": "[data-ax='decline']",
+    },
+    {
+        "name": "Iubenda",
+        "detect": "#iubenda-cs-banner",
+        "accept": ".iubenda-cs-accept-btn",
+        "reject": ".iubenda-cs-reject-btn",
+    },
+    {
+        "name": "Termly",
+        "detect": "#termly-code-snippet-support",
+        "accept": "[data-tid='banner-accept']",
+        "reject": "[data-tid='banner-decline']",
+    },
+    {
+        "name": "CookieFirst",
+        "detect": "#cookiefirst-root",
+        "accept": "[data-cookiefirst-action='accept']",
+        "reject": "[data-cookiefirst-action='reject']",
+    },
+    {
+        "name": "Complianz",
+        "detect": "#cmplz-cookiebanner-container",
+        "accept": ".cmplz-accept",
+        "reject": ".cmplz-deny",
+    },
+    {
+        "name": "CookieScript",
+        "detect": "#cookiescript_injected",
+        "accept": "#cookiescript_accept",
+        "reject": "#cookiescript_reject",
+    },
+    {
+        "name": "HubSpot",
+        "detect": "#hs-eu-cookie-confirmation",
+        "accept": "#hs-eu-confirmation-button",
+        "reject": "#hs-eu-decline-button",
+    },
+    {
+        "name": "Civic UK",
+        "detect": "#ccc, .ccc-content",
+        "accept": "#ccc-recommended-settings",
+        "reject": "#ccc-reject-settings",
+    },
+    {
+        "name": "GDPR Cookie Compliance",
+        "detect": "#moove_gdpr_cookie_modal",
+        "accept": ".moove-gdpr-modal-allow-all",
+        "reject": ".moove-gdpr-modal-save-settings",
+    },
+    {
+        "name": "CookieHub",
+        "detect": "#ch2-container",
+        "accept": "#ch2-btn-accept",
+        "reject": "#ch2-btn-decline",
+    },
+    {
+        "name": "Osano",
+        "detect": ".osano-cm-dialog",
+        "accept": ".osano-cm-accept-all",
+        "reject": ".osano-cm-deny",
+    },
+    {
+        "name": "Ketch",
+        "detect": "#ketch-consent",
+        "accept": "[data-testid='accept-button']",
+        "reject": "[data-testid='decline-button']",
+    },
+    {
+        "name": "Piwik PRO",
+        "detect": "#ppms_cm_popup_overlay",
+        "accept": "#ppms_cm_agree-to-all",
+        "reject": "#ppms_cm_reject-all",
+    },
+    {
+        "name": "Cookie Consent (Insites)",
+        "detect": ".cc-window",
+        "accept": ".cc-btn.cc-allow",
+        "reject": ".cc-btn.cc-deny",
+    },
+    {
+        "name": "Admiral",
+        "detect": "[id^='admiral-']",
+        "accept": "[class*='admiral-accept']",
+        "reject": "[class*='admiral-reject']",
+    },
+    {
+        "name": "Sibbo",
+        "detect": "#sibbo-cmp-layout",
+        "accept": "#sibbo-cmp-accept-all",
+        "reject": "#sibbo-cmp-reject-all",
+    },
+    {
+        "name": "Evidon",
+        "detect": "#_evidon_banner",
+        "accept": "#_evidon-accept-button",
+        "reject": "#_evidon-decline-button",
+    },
+    {
+        "name": "LiveRamp",
+        "detect": "#_lr-cookie-consent",
+        "accept": "#_lr-accept-all",
+        "reject": "#_lr-reject-all",
+    },
+    {
+        "name": "Adsimple",
+        "detect": "#adconsent-usp-banner",
+        "accept": ".adconsent-accept-all",
+        "reject": ".adconsent-reject-all",
+    },
 ]
 
 # Generic fallback patterns (text-based)
@@ -94,45 +215,245 @@ GENERIC_REJECT_TEXTS = [
     "Decline", "Nein", "Nicht einverstanden",
 ]
 
+# Attribute-based generic selectors for consent buttons
+_GENERIC_ATTR_ACCEPT = [
+    "[data-consent='accept']", "[data-cookie='accept']", "[data-gdpr='accept']",
+    "[data-consent-accept]", "[data-cookie-accept]",
+]
+_GENERIC_ATTR_REJECT = [
+    "[data-consent='reject']", "[data-cookie='reject']", "[data-gdpr='reject']",
+    "[data-consent-reject]", "[data-cookie-reject]",
+]
+
+# Dialog / aria selectors to find consent containers
+_DIALOG_SELECTORS = [
+    "[role='dialog']",
+    "[aria-label*='cookie' i]", "[aria-label*='consent' i]",
+    "[aria-label*='datenschutz' i]", "[aria-label*='Cookie' i]",
+]
+
+# JavaScript for recursive Shadow DOM search
+_SHADOW_DETECT_JS = """
+() => {
+    const KEYWORDS = /cookie|consent|datenschutz|privacy/i;
+    const results = [];
+    function walk(root) {
+        for (const el of root.querySelectorAll('*')) {
+            if (el.shadowRoot) {
+                const shadow = el.shadowRoot;
+                const text = shadow.innerHTML || '';
+                if (KEYWORDS.test(text)) {
+                    const buttons = [];
+                    for (const btn of shadow.querySelectorAll(
+                        'button, a[role="button"], [role="button"]'
+                    )) {
+                        const t = (btn.textContent || '').trim();
+                        if (t.length > 0 && t.length < 80) {
+                            buttons.push(t);
+                        }
+                    }
+                    if (buttons.length > 0) {
+                        const tag = el.tagName.toLowerCase();
+                        const id = el.id ? '#' + el.id : '';
+                        results.push({
+                            host: tag + id,
+                            buttons: buttons,
+                            preview: text.substring(0, 200)
+                        });
+                    }
+                }
+                walk(shadow);
+            }
+        }
+    }
+    walk(document);
+    return results.length > 0 ? results[0] : null;
+}
+"""
+
+_SHADOW_CLICK_JS = """
+(textPattern) => {
+    const regex = new RegExp(textPattern, 'i');
+    function walk(root) {
+        for (const el of root.querySelectorAll('*')) {
+            if (el.shadowRoot) {
+                const btns = el.shadowRoot.querySelectorAll(
+                    'button, a[role="button"], [role="button"]'
+                );
+                for (const btn of btns) {
+                    if (regex.test(btn.textContent || '')) {
+                        btn.click();
+                        return true;
+                    }
+                }
+                const found = walk(el.shadowRoot);
+                if (found) return true;
+            }
+        }
+        return false;
+    }
+    return walk(document);
+}
+"""
+
+
+async def _detect_in_shadow_dom(page: Page) -> BannerInfo | None:
+    """Search Shadow DOM roots for consent banners as last-resort fallback."""
+    try:
+        result = await page.evaluate(_SHADOW_DETECT_JS)
+        if not result:
+            return None
+        buttons = result.get("buttons", [])
+        host = result.get("host", "")
+        accept_pat = ""
+        reject_pat = ""
+        accept_kw = ("accept", "akzeptieren", "zustimmen", "agree", "allow",
+                      "einverstanden", "alle")
+        reject_kw = ("reject", "ablehnen", "deny", "decline", "refuse",
+                      "notwendig", "necessary", "essential")
+        for text in buttons:
+            low = text.lower()
+            if not accept_pat and any(k in low for k in accept_kw):
+                accept_pat = text
+            elif not reject_pat and any(k in low for k in reject_kw):
+                reject_pat = text
+        if not accept_pat and not reject_pat:
+            return None
+        return BannerInfo(
+            detected=True,
+            provider=f"ShadowDOM({host})",
+            accept_selector=f"shadow-click:{accept_pat}" if accept_pat else "",
+            reject_selector=f"shadow-click:{reject_pat}" if reject_pat else "",
+        )
+    except Exception:
+        return None
+
+
+async def _click_in_shadow_dom(page: Page, text_pattern: str) -> bool:
+    """Click a button inside a Shadow DOM root matching the text pattern."""
+    try:
+        return await page.evaluate(_SHADOW_CLICK_JS, text_pattern)
+    except Exception:
+        return False
+
+
+async def _detect_generic_dialog(page: Page) -> BannerInfo | None:
+    """Detect consent banners in dialog/aria containers."""
+    consent_kw = ("cookie", "consent", "datenschutz", "privacy")
+    for sel in _DIALOG_SELECTORS:
+        try:
+            containers = page.locator(sel)
+            count = await containers.count()
+            if count == 0:
+                continue
+            container = containers.first
+            text = (await container.inner_text(timeout=2000)).lower()
+            if not any(kw in text for kw in consent_kw):
+                continue
+            # Found a consent dialog — look for accept/reject buttons
+            accept = ""
+            reject = ""
+            for asel in _GENERIC_ATTR_ACCEPT:
+                if await container.locator(asel).count() > 0:
+                    accept = f"{sel} {asel}"
+                    break
+            for rsel in _GENERIC_ATTR_REJECT:
+                if await container.locator(rsel).count() > 0:
+                    reject = f"{sel} {rsel}"
+                    break
+            if not accept:
+                for t in GENERIC_ACCEPT_TEXTS:
+                    if await container.get_by_text(t, exact=False).count() > 0:
+                        accept = f'{sel} button:has-text("{t}")'
+                        break
+            if not reject:
+                for t in GENERIC_REJECT_TEXTS:
+                    if await container.get_by_text(t, exact=False).count() > 0:
+                        reject = f'{sel} button:has-text("{t}")'
+                        break
+            if accept or reject:
+                return BannerInfo(
+                    detected=True, provider="Generic (dialog)",
+                    accept_selector=accept, reject_selector=reject,
+                )
+        except Exception:
+            continue
+    return None
+
+
+async def _detect_generic_attr(page: Page) -> BannerInfo | None:
+    """Detect consent buttons by data-consent/data-cookie/data-gdpr attributes."""
+    accept = ""
+    reject = ""
+    for sel in _GENERIC_ATTR_ACCEPT:
+        try:
+            if await page.locator(sel).count() > 0:
+                accept = sel
+                break
+        except Exception:
+            continue
+    for sel in _GENERIC_ATTR_REJECT:
+        try:
+            if await page.locator(sel).count() > 0:
+                reject = sel
+                break
+        except Exception:
+            continue
+    if accept or reject:
+        return BannerInfo(
+            detected=True, provider="Generic (attr)",
+            accept_selector=accept, reject_selector=reject,
+        )
+    return None
+
 
 async def detect_banner(page: Page) -> BannerInfo:
     """Detect which CMP is used and return button selectors."""
-    # Try CMP-specific selectors first
+    # 1. Try CMP-specific selectors
     for cmp in CMP_SELECTORS:
         try:
-            count = await page.locator(cmp["detect"]).count()
-            if count > 0:
+            if await page.locator(cmp["detect"]).count() > 0:
                 return BannerInfo(
-                    detected=True,
-                    provider=cmp["name"],
+                    detected=True, provider=cmp["name"],
                     accept_selector=cmp["accept"],
                     reject_selector=cmp["reject"],
                 )
         except Exception:
             continue
 
-    # Generic fallback — search for buttons by text
+    # 2. Generic fallback — search buttons by text
     for text in GENERIC_ACCEPT_TEXTS:
         try:
             btn = page.get_by_text(text, exact=False)
             if await btn.count() > 0:
                 accept = f'button:has-text("{text}")'
-                # Try to find reject button nearby
                 reject = ""
                 for rtext in GENERIC_REJECT_TEXTS:
-                    rbtn = page.get_by_text(rtext, exact=False)
-                    if await rbtn.count() > 0:
+                    if await page.get_by_text(rtext, exact=False).count() > 0:
                         reject = f'button:has-text("{rtext}")'
                         break
                 return BannerInfo(
-                    detected=True,
-                    provider="Generic",
-                    accept_selector=accept,
-                    reject_selector=reject,
+                    detected=True, provider="Generic",
+                    accept_selector=accept, reject_selector=reject,
                 )
         except Exception:
             continue
 
+    # 3. Generic fallback — dialog/aria containers with consent keywords
+    dialog_result = await _detect_generic_dialog(page)
+    if dialog_result:
+        return dialog_result
+
+    # 4. Generic fallback — data-consent/data-cookie/data-gdpr attributes
+    attr_result = await _detect_generic_attr(page)
+    if attr_result:
+        return attr_result
+
+    # 5. Shadow DOM fallback — search inside shadow roots
+    shadow_result = await _detect_in_shadow_dom(page)
+    if shadow_result:
+        return shadow_result
+
     return BannerInfo(detected=False, provider="", accept_selector="", reject_selector="")
 
 
@@ -140,10 +461,21 @@ async def click_button(page: Page, selector: str, timeout: int = 5000) -> bool:
     """Try to click a consent button. Returns True if clicked successfully."""
     if not selector:
         return False
+
+    # Handle Shadow DOM selectors
+    if selector.startswith("shadow-click:"):
+        text_pattern = selector[len("shadow-click:"):]
+        return await _click_in_shadow_dom(page, text_pattern)
+
     try:
         locator = page.locator(selector).first
         await locator.wait_for(state="visible", timeout=timeout)
         await locator.click()
         return True
     except Exception:
+        # Fallback: try Shadow DOM click with selector text
+        # Extract button text from selector like 'button:has-text("Accept all")'
+        if ':has-text("' in selector:
+            text = selector.split(':has-text("')[1].rstrip('")')
+            return await _click_in_shadow_dom(page, text)
         return False

consent-tester/services/consent_scanner.py

@@ -11,6 +11,12 @@ from dataclasses import dataclass, field
 
 from playwright.async_api import async_playwright, Page, BrowserContext
 
+try:
+    from playwright_stealth import stealth_async
+    HAS_STEALTH = True
+except ImportError:
+    HAS_STEALTH = False
+
 from services.banner_detector import detect_banner, click_button, BannerInfo
 from services.script_analyzer import (
     classify_scripts, find_tracking_services,
@@ -53,22 +59,43 @@ class ConsentTestResult:
     banner_has_dse_link: bool = False
 
 
-async def run_consent_test(url: str, wait_secs: int = 10) -> ConsentTestResult:
-    """Run 3-phase consent test on a URL."""
+async def run_consent_test(
+    url: str, wait_secs: int = 10, categories: list[str] | None = None,
+) -> ConsentTestResult:
+    """Run 3-phase consent test on a URL.
+
+    Args:
+        url: Website URL to test.
+        wait_secs: Seconds to wait per phase.
+        categories: Optional list of category names to test (empty = test all).
+    """
     result = ConsentTestResult()
     wait_ms = wait_secs * 1000
+    filter_cats = categories or []
 
     async with async_playwright() as p:
         browser = await p.chromium.launch(
             headless=True,
-            args=["--no-sandbox", "--disable-dev-shm-usage"],
+            args=[
+                "--no-sandbox",
+                "--disable-dev-shm-usage",
+                "--disable-blink-features=AutomationControlled",
+                "--window-size=1920,1080",
+            ],
         )
 
         try:
             # ── Phase A: Before consent ──────────────────────────
             logger.info("Phase A: First visit (no interaction)")
-            ctx_a = await browser.new_context(user_agent=USER_AGENT)
+            ctx_a = await browser.new_context(
+                user_agent=USER_AGENT,
+                viewport={"width": 1920, "height": 1080},
+                locale="de-DE",
+                timezone_id="Europe/Berlin",
+            )
             page_a = await ctx_a.new_page()
+            if HAS_STEALTH:
+                await stealth_async(page_a)
             scripts_a = []
             page_a.on("request", lambda req: _collect_script(req, scripts_a))
 
@@ -101,8 +128,15 @@ async def run_consent_test(url: str, wait_secs: int = 10) -> ConsentTestResult:
 
             # ── Phase B: After rejecting ─────────────────────────
             logger.info("Phase B: Reject consent (%s)", banner.provider)
-            ctx_b = await browser.new_context(user_agent=USER_AGENT)
+            ctx_b = await browser.new_context(
+                user_agent=USER_AGENT,
+                viewport={"width": 1920, "height": 1080},
+                locale="de-DE",
+                timezone_id="Europe/Berlin",
+            )
             page_b = await ctx_b.new_page()
+            if HAS_STEALTH:
+                await stealth_async(page_b)
             scripts_b = []
             page_b.on("request", lambda req: _collect_script(req, scripts_b))
 
@@ -128,8 +162,15 @@ async def run_consent_test(url: str, wait_secs: int = 10) -> ConsentTestResult:
 
             # ── Phase C: After accepting ─────────────────────────
             logger.info("Phase C: Accept consent (%s)", banner.provider)
-            ctx_c = await browser.new_context(user_agent=USER_AGENT)
+            ctx_c = await browser.new_context(
+                user_agent=USER_AGENT,
+                viewport={"width": 1920, "height": 1080},
+                locale="de-DE",
+                timezone_id="Europe/Berlin",
+            )
             page_c = await ctx_c.new_page()
+            if HAS_STEALTH:
+                await stealth_async(page_c)
             scripts_c = []
             page_c.on("request", lambda req: _collect_script(req, scripts_c))
 
@@ -154,18 +195,40 @@ async def run_consent_test(url: str, wait_secs: int = 10) -> ConsentTestResult:
             try:
                 from services.category_tester import detect_categories, test_single_category
 
-                ctx_cat = await browser.new_context(user_agent=USER_AGENT)
+                ctx_cat = await browser.new_context(
+                    user_agent=USER_AGENT,
+                    viewport={"width": 1920, "height": 1080},
+                    locale="de-DE",
+                    timezone_id="Europe/Berlin",
+                )
                 page_cat = await ctx_cat.new_page()
+                if HAS_STEALTH:
+                    await stealth_async(page_cat)
                 await page_cat.goto(url, wait_until="networkidle", timeout=20000)
                 await page_cat.wait_for_timeout(2000)
 
-                categories = await detect_categories(page_cat, banner)
+                detected_cats = await detect_categories(page_cat, banner)
                 await page_cat.close()
 
-                if categories:
-                    logger.info("Testing %d categories individually", len(categories))
-                    for cat in categories:
-                        cat_ctx = await browser.new_context(user_agent=USER_AGENT)
+                # Filter to requested categories if specified
+                if filter_cats and detected_cats:
+                    detected_cats = [
+                        c for c in detected_cats if c.name in filter_cats
+                    ]
+                    logger.info(
+                        "Filtered to %d categories (requested: %s)",
+                        len(detected_cats), filter_cats,
+                    )
+
+                if detected_cats:
+                    logger.info("Testing %d categories individually", len(detected_cats))
+                    for cat in detected_cats:
+                        cat_ctx = await browser.new_context(
+                            user_agent=USER_AGENT,
+                            viewport={"width": 1920, "height": 1080},
+                            locale="de-DE",
+                            timezone_id="Europe/Berlin",
+                        )
                         cat_result = await test_single_category(cat_ctx, url, cat, banner, wait_ms)
                         result.category_tests.append(cat_result)
                         await cat_ctx.close()