Add tests, docs, and contributors for PRs #1463 and #1435

- Add tests for device_scale_factor (config + integration)
- Add tests for redirected_status_code (model + redirect + raw HTML)
- Document device_scale_factor in browser config docs and API reference
- Document redirected_status_code in crawler result docs and API reference
- Add TristanDonze and charlaie to CONTRIBUTORS.md
- Update PR-TODOLIST with session results

.context/PR-TODOLIST.md

@@ -59,8 +59,8 @@
 | #1668 | microHoffman | Add `--json-ensure-ascii` CLI flag for Unicode handling. Clean, small. | pending |
 | #1650 | KennyStryker | Add support for Vertex AI in LLM Extraction Strategy. | pending |
 | #1580 | arpagon | Add Azure OpenAI configuration support to crwl config. | pending |
-| #1463 | TristanDonze | Add configurable `device_scale_factor` for screenshot quality. 3 files, clean. | pending |
+| ~~#1463~~ | ~~TristanDonze~~ | ~~Add configurable `device_scale_factor` for screenshot quality. 3 files, clean.~~ | **merged** |
-| #1435 | charlaie | Add `redirected_status_code` to CrawlResult. 3 files, clean. | pending |
+| ~~#1435~~ | ~~charlaie~~ | ~~Add `redirected_status_code` to CrawlResult. 3 files, clean.~~ | **merged** |
 | #1425 | denrusio | Add OpenRouter API support. | pending |
 | #1417 | NickMandylas | Add CDP headers support for remote browser auth (AWS Bedrock etc). | pending |
 | #1290 | 130347665 | Support type-list pipeline in JsonElementExtraction (multi-step extract). | pending |
@@ -212,3 +212,6 @@
 | #1696 | majiayu000 | closed: duplicate of #1722 | 2026-02-02 |
 | #1478 | e1codes | closed: duplicate of #1715 | 2026-02-02 |
 | #1465 | fardhanrasya | closed: duplicate of #1715 | 2026-02-02 |
+| #1450 | rbushri | closed: litellm handles response field normalization | 2026-02-06 |
+| #1463 | TristanDonze | feat: add configurable device_scale_factor for screenshot quality | 2026-02-06 |
+| #1435 | charlaie | feat: add redirected_status_code to CrawlResult | 2026-02-06 |

CONTRIBUTORS.md

@@ -37,6 +37,8 @@ We would like to thank the following people for their contributions to Crawl4AI:
 - [stevenaldinger](https://github.com/stevenaldinger) - identified: duplicate PROMPT_EXTRACT_BLOCKS dead code in prompts.py [#931](https://github.com/unclecode/crawl4ai/pull/931)
 - [chrizzly2309](https://github.com/chrizzly2309) - identified: JWT auth bypass when no credentials provided [#1133](https://github.com/unclecode/crawl4ai/pull/1133)
 - [complete-dope](https://github.com/complete-dope) - identified: console logging error attribute issue [#729](https://github.com/unclecode/crawl4ai/pull/729)
+- [TristanDonze](https://github.com/TristanDonze) - feat: add configurable device_scale_factor for screenshot quality [#1463](https://github.com/unclecode/crawl4ai/pull/1463)
+- [charlaie](https://github.com/charlaie) - feat: add redirected_status_code to CrawlResult [#1435](https://github.com/unclecode/crawl4ai/pull/1435)
 
 #### Feb-Alpha-1
 - [sufianuddin](https://github.com/sufianuddin) - fix: [Documentation for JsonCssExtractionStrategy](https://github.com/unclecode/crawl4ai/issues/651)

docs/md_v2/api/crawl-result.md

@@ -24,6 +24,7 @@ class CrawlResult(BaseModel):
     session_id: Optional[str] = None
     response_headers: Optional[dict] = None
     status_code: Optional[int] = None
+    redirected_status_code: Optional[int] = None
     ssl_certificate: Optional[SSLCertificate] = None
     dispatch_result: Optional[DispatchResult] = None
     ...
@@ -50,15 +51,23 @@ if not result.success:
     print(f"Crawl failed: {result.error_message}")
 ```
 
-### 1.3 **`status_code`** *(Optional[int])*  
+### 1.3 **`status_code`** *(Optional[int])*
-**What**: The page's HTTP status code (e.g., 200, 404).  
+**What**: The page's HTTP status code (e.g., 200, 404). When the page was reached via redirect, this is the status code of the **first** response in the redirect chain (e.g., 301 or 302).
 **Usage**:
 ```python
 if result.status_code == 404:
     print("Page not found!")
 ```
 
-### 1.4 **`error_message`** *(Optional[str])*  
+### 1.4 **`redirected_status_code`** *(Optional[int])*
+**What**: The HTTP status code of the **final** redirect destination. For a 302→200 redirect, `status_code` is 302 and `redirected_status_code` is 200. `None` for non-HTTP requests (raw HTML, local files).
+**Usage**:
+```python
+if result.status_code in (301, 302) and result.redirected_status_code == 200:
+    print(f"Redirected to {result.redirected_url} (OK)")
+```
+
+### 1.5 **`error_message`** *(Optional[str])*  
 **What**: If `success=False`, a textual description of the failure.  
 **Usage**:
 ```python

docs/md_v2/api/parameters.md

@@ -29,6 +29,7 @@ browser_cfg = BrowserConfig(
 | **`viewport_width`**  | `int` (default: `1080`)                | Initial page width (in px). Useful for testing responsive layouts.                                                                    |
 | **`viewport_height`** | `int` (default: `600`)                 | Initial page height (in px).                                                                                                          |
 | **`viewport`**        | `dict` (default: `None`)               | Viewport dimensions dict. If set, overrides `viewport_width` and `viewport_height`.                                                   |
+| **`device_scale_factor`** | `float` (default: `1.0`)           | Device pixel ratio for rendering. Use `2.0` for Retina-quality screenshots. Higher values produce larger images and use more memory.  |
 | **`proxy`**           | `str` (deprecated)                      | Deprecated. Use `proxy_config` instead. If set, it will be auto-converted internally. |
 | **`proxy_config`**    | `ProxyConfig or dict` (default: `None`)| For advanced or multi-proxy needs, specify `ProxyConfig` object or dict like `{"server": "...", "username": "...", "password": "..."}`.  |
 | **`use_persistent_context`** | `bool` (default: `False`)       | If `True`, uses a **persistent** browser context (keep cookies, sessions across runs). Also sets `use_managed_browser=True`.          |

docs/md_v2/core/browser-crawler-config.md

@@ -84,11 +84,16 @@ class BrowserConfig:
 ```
    - Leave as `None` if a proxy is not required.
 
-7.⠀**`viewport_width` & `viewport_height`**  
+7.⠀**`viewport_width` & `viewport_height`**
-   - The initial window size.  
+   - The initial window size.
    - Some sites behave differently with smaller or bigger viewports.
 
-8.⠀**`verbose`**  
+8.⠀**`device_scale_factor`**
+   - Controls the device pixel ratio (DPR) for rendering. Default is `1.0`.
+   - Set to `2.0` for Retina-quality screenshots (e.g., a 1920×1080 viewport produces 3840×2160 images).
+   - Higher values increase screenshot size and rendering time proportionally.
+
+9.⠀**`verbose`**  
    - If `True`, prints extra logs.  
    - Handy for debugging.
 

docs/md_v2/core/crawler-result.md

@@ -39,6 +39,7 @@ class CrawlResult(BaseModel):
     ssl_certificate: Optional[SSLCertificate] = None
     dispatch_result: Optional[DispatchResult] = None
     redirected_url: Optional[str] = None
+    redirected_status_code: Optional[int] = None
     network_requests: Optional[List[Dict[str, Any]]] = None
     console_messages: Optional[List[Dict[str, Any]]] = None
     tables: List[Dict] = Field(default_factory=list)
@@ -73,6 +74,7 @@ class CrawlResult(BaseModel):
 | **ssl_certificate (`Optional[SSLCertificate]`)** | SSL certificate info if `fetch_ssl_certificate=True`.                                               |
 | **dispatch_result (`Optional[DispatchResult]`)** | Additional concurrency and resource usage information when crawling URLs in parallel.               |
 | **redirected_url (`Optional[str]`)**      | The URL after any redirects (different from `url` which is the final URL).                          |
+| **redirected_status_code (`Optional[int]`)** | HTTP status code of the final redirect destination (e.g., 200). `None` for non-HTTP requests (raw HTML, local files). |
 | **network_requests (`Optional[List[Dict[str, Any]]]`)** | List of network requests, responses, and failures captured during the crawl if `capture_network_requests=True`. |
 | **console_messages (`Optional[List[Dict[str, Any]]]`)** | List of browser console messages captured during the crawl if `capture_console_messages=True`.       |
 | **tables (`List[Dict]`)**                 | Table data extracted from HTML tables with structure `[{headers, rows, caption, summary}]`.           |

tests/test_pr_1435_redirected_status_code.py

@@ -0,0 +1,72 @@
+"""Tests for PR #1435: redirected_status_code in CrawlResult."""
+
+import pytest
+import pytest_asyncio
+from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig
+from crawl4ai.models import CrawlResult, AsyncCrawlResponse
+
+
+class TestRedirectedStatusCodeModel:
+    """Test that the field exists and defaults correctly on both models."""
+
+    def test_crawl_result_default_none(self):
+        result = CrawlResult(url="http://example.com", html="", success=True)
+        assert result.redirected_status_code is None
+
+    def test_crawl_result_set_value(self):
+        result = CrawlResult(url="http://example.com", html="", success=True, redirected_status_code=200)
+        assert result.redirected_status_code == 200
+
+    def test_async_crawl_response_default_none(self):
+        resp = AsyncCrawlResponse(html="<html></html>", response_headers={}, status_code=200)
+        assert resp.redirected_status_code is None
+
+    def test_async_crawl_response_set_value(self):
+        resp = AsyncCrawlResponse(html="<html></html>", response_headers={}, status_code=200, redirected_status_code=301)
+        assert resp.redirected_status_code == 301
+
+
+@pytest.mark.asyncio
+async def test_redirected_status_code_on_direct_request():
+    """A non-redirected request should have redirected_status_code equal to the final status."""
+    browser_config = BrowserConfig(headless=True)
+    run_config = CrawlerRunConfig()
+
+    async with AsyncWebCrawler(config=browser_config) as crawler:
+        result = await crawler.arun("https://httpbin.org/get", config=run_config)
+
+    assert result.success
+    # Direct request — redirected_status_code should be the final response status (200)
+    assert result.redirected_status_code == 200
+
+
+@pytest.mark.asyncio
+async def test_redirected_status_code_on_redirect():
+    """A redirected request should capture the final destination's status code."""
+    browser_config = BrowserConfig(headless=True)
+    run_config = CrawlerRunConfig()
+
+    # httpbin /redirect/1 does a 302 redirect to /get (which returns 200)
+    async with AsyncWebCrawler(config=browser_config) as crawler:
+        result = await crawler.arun("https://httpbin.org/redirect/1", config=run_config)
+
+    assert result.success
+    # status_code should be 302 (the first hop, per crawl4ai's redirect chain walking)
+    assert result.status_code == 302
+    # redirected_status_code should be 200 (the final destination)
+    assert result.redirected_status_code == 200
+    # redirected_url should point to the final destination
+    assert "/get" in (result.redirected_url or "")
+
+
+@pytest.mark.asyncio
+async def test_redirected_status_code_on_raw_html():
+    """Raw HTML input should have redirected_status_code = None (no network request)."""
+    browser_config = BrowserConfig(headless=True)
+    run_config = CrawlerRunConfig()
+
+    async with AsyncWebCrawler(config=browser_config) as crawler:
+        result = await crawler.arun("raw:<html><body>test</body></html>", config=run_config)
+
+    assert result.success
+    assert result.redirected_status_code is None

tests/test_pr_1463_device_scale_factor.py

@@ -0,0 +1,62 @@
+"""Tests for PR #1463: configurable device_scale_factor in BrowserConfig."""
+
+import pytest
+import pytest_asyncio
+import base64
+from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig
+
+
+class TestDeviceScaleFactorConfig:
+    """Test that device_scale_factor flows correctly through BrowserConfig."""
+
+    def test_default_value(self):
+        config = BrowserConfig()
+        assert config.device_scale_factor == 1.0
+
+    def test_custom_value(self):
+        config = BrowserConfig(device_scale_factor=2.0)
+        assert config.device_scale_factor == 2.0
+
+    def test_to_dict_includes_field(self):
+        config = BrowserConfig(device_scale_factor=3.0)
+        d = config.to_dict()
+        assert d["device_scale_factor"] == 3.0
+
+    def test_clone_preserves(self):
+        config = BrowserConfig(device_scale_factor=2.5)
+        cloned = config.clone()
+        assert cloned.device_scale_factor == 2.5
+
+    def test_from_kwargs(self):
+        config = BrowserConfig.from_kwargs({"device_scale_factor": 1.5})
+        assert config.device_scale_factor == 1.5
+
+    def test_from_kwargs_default(self):
+        config = BrowserConfig.from_kwargs({})
+        assert config.device_scale_factor == 1.0
+
+
+@pytest.mark.asyncio
+async def test_device_scale_factor_produces_larger_screenshot():
+    """Integration test: higher device_scale_factor should produce a larger screenshot."""
+    html = "<html><body><h1>Scale Test</h1></body></html>"
+    raw_url = f"raw:{html}"
+    run_config = CrawlerRunConfig(screenshot=True)
+
+    # Take screenshot at scale 1.0
+    browser_1x = BrowserConfig(headless=True, device_scale_factor=1.0, viewport_width=800, viewport_height=600)
+    async with AsyncWebCrawler(config=browser_1x) as crawler:
+        result_1x = await crawler.arun(raw_url, config=run_config)
+
+    # Take screenshot at scale 2.0
+    browser_2x = BrowserConfig(headless=True, device_scale_factor=2.0, viewport_width=800, viewport_height=600)
+    async with AsyncWebCrawler(config=browser_2x) as crawler:
+        result_2x = await crawler.arun(raw_url, config=run_config)
+
+    assert result_1x.screenshot is not None
+    assert result_2x.screenshot is not None
+
+    # 2x scale should produce more pixel data (larger base64 string)
+    size_1x = len(base64.b64decode(result_1x.screenshot))
+    size_2x = len(base64.b64decode(result_2x.screenshot))
+    assert size_2x > size_1x, f"2x screenshot ({size_2x} bytes) should be larger than 1x ({size_1x} bytes)"