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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteTo capture a Cloudflare Access-protected page, send the screenshot service valid Access credentials along with the page request. For recurring, unattended captures, the recommended route is a Cloudflare Access service token authorized by a Service Auth policy. For a one-off capture, a valid CF_Authorization session cookie can work. Cloudflare Browser Run’s Screenshot Quick Action accepts custom request headers and cookies, then renders the page before capturing it. Use only credentials and pages you are authorized to access.
Choose an authentication method
| Situation | Method | Trade-off |
|---|---|---|
| One URL and an existing authorized session | Pass a valid CF_Authorization cookie to the Screenshot Quick Action. |
Simple, but the cookie expires with the session and must be handled as sensitive identity material. Cloudflare Screenshot Quick Action; Access authorization cookie. |
| Scheduled or unattended captures | Use Access service-token headers and a Service Auth policy that permits the token. | Designed for machine access, but requires Access administrator setup and secure secret storage. Cloudflare service tokens; Screenshot Quick Action. |
| The capture needs interactive login or browser steps | Control a Browser Run session with Playwright, Puppeteer, or CDP. | Offers more browser control than a stateless screenshot request. Browser Run getting started. |
| Only part of a page or the entire document is needed | Use the Quick Action’s selector or fullPage option. |
Confirm the selected element or scrollable scope matches the intended evidence. Screenshot Quick Action options. |
Set up a service token for automated captures
For a recurring job, use a Cloudflare Access service token rather than relying on an employee’s browser session. The token works only when the Access application’s policy authorizes it.
- Ask an Access administrator to create a service token. Cloudflare displays the client secret only once at creation, so store it immediately in your organization’s secret manager. See Cloudflare’s service-token documentation.
- Configure the Access application’s policy. Add a Service Auth policy that permits the intended token. Do not weaken or bypass the application’s access policy merely to make a capture work.
- Send both Access headers with the screenshot request. Use
CF-Access-Client-IdandCF-Access-Client-Secret, with the values issued for your token. The screenshot endpoint also needs its own Cloudflare API authentication, as shown below. - Keep credentials out of code, page content, and logs. Load them from a secret store or environment variables at runtime, restrict access, and rotate or revoke them according to your organization’s policy.
Cloudflare’s service-token documentation, updated October 2, 2026, describes strict service-token authentication behavior. Depending on the Access configuration, a failed service-token request may return HTTP 401 or 403 rather than redirecting to a login page. A successful request under strict service-token authentication does not create a reusable CF_Authorization browser cookie. Check the current behavior and configuration for your organization in the service-token documentation and Access changelog.
Make a screenshot request with Cloudflare Browser Run
The Quick Action requires a Cloudflare API token with Browser Rendering Edit permission for REST API use. Cloudflare also documents using the action through a Worker browser binding. In the REST request, supply that API token for Browser Run and the Access service-token headers for the protected site. The API token and Access credentials serve different purposes: one authorizes use of Browser Run; the other authorizes access to the page.
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- Features an 8 Megapixel camera for capturing Ultra High Definition live images up to 3264 x 2448 pixels
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- Fast focusing speed helps minimize interruptions for frequent switching between different materials; features Sony CMOS Image Sensor for exceptional noise reduction and color Reproduction – great for capturing in dimly lit environments
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- Works with a variety of software and applications on Mac, PC and Chromebook that allows you to use it in different ways. System Requirements - Mac Intel Core i5 CPU 2.5 GHz or higher, OS X 10.10 or higher, Solid-state drive, and 200MB of free hard disk space, 256MB of dedicated video memory (For lag-free live streaming up to 1920 x 1080, and video recording of 1920 x 1080). Windows Recommended Requirements - Microsoft Windows 10,Intel Core i5 CPU 3.40 GHz or higher, 4 GB RAM, 200MB of free hard disk space, 256MB of dedicated video memory (For lag-free live streaming up to 1920 x 1080, and video recording of 1920 x 1080)
cURL
curl -X POST 'https://api.cloudflare.com/client/v4/accounts/ACCOUNT_ID/browser-rendering/screenshot'
-H 'Authorization: Bearer CLOUDFLARE_API_TOKEN'
-H 'Content-Type: application/json'
--data '{
"url": "https://protected.example.com/",
"screenshotOptions": {
"type": "png",
"fullPage": true
},
"gotoOptions": {
"waitUntil": "networkidle"
},
"headers": {
"CF-Access-Client-Id": "CLIENT_ID",
"CF-Access-Client-Secret": "CLIENT_SECRET"
}
}'
--output protected-page.pngReplace ACCOUNT_ID, the API token, the protected URL, and the service-token values with your own. Cloudflare’s endpoint and option names can change; use the current request format in its Screenshot Quick Action documentation. Treat the saved image as potentially sensitive if the page contains private information.
Python
import os
import requests
endpoint = "https://api.cloudflare.com/client/v4/accounts/ACCOUNT_ID/browser-rendering/screenshot"
payload = {
"url": "https://protected.example.com/",
"screenshotOptions": {
"type": "png",
"fullPage": True,
},
"gotoOptions": {
"waitUntil": "networkidle",
},
"headers": {
"CF-Access-Client-Id": os.environ["CF_ACCESS_CLIENT_ID"],
"CF-Access-Client-Secret": os.environ["CF_ACCESS_CLIENT_SECRET"],
},
}
response = requests.post(
endpoint,
headers={"Authorization": f"Bearer {os.environ['CF_API_TOKEN']}"},
json=payload,
timeout=90,
)
response.raise_for_status()
with open("protected-page.png", "wb") as image:
image.write(response.content)Set CF_API_TOKEN, CF_ACCESS_CLIENT_ID, and CF_ACCESS_CLIENT_SECRET in your runtime environment or secret manager. Confirm the endpoint’s response format against the current Cloudflare documentation before integrating it into a production job.
Node.js
const endpoint = 'https://api.cloudflare.com/client/v4/accounts/ACCOUNT_ID/browser-rendering/screenshot';
const response = await fetch(endpoint, {
method: 'POST',
headers: {
Authorization: `Bearer ${process.env.CF_API_TOKEN}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({
url: 'https://protected.example.com/',
screenshotOptions: { type: 'png', fullPage: true },
gotoOptions: { waitUntil: 'networkidle' },
headers: {
'CF-Access-Client-Id': process.env.CF_ACCESS_CLIENT_ID,
'CF-Access-Client-Secret': process.env.CF_ACCESS_CLIENT_SECRET,
},
}),
});
if (!response.ok) {
throw new Error(`Screenshot request failed: ${response.status} ${await response.text()}`);
}
const image = Buffer.from(await response.arrayBuffer());
await import('node:fs/promises').then(({ writeFile }) => writeFile('protected-page.png', image));Set the three environment variables before running the script. Check Cloudflare’s current endpoint response requirements if your account or integration expects a different request or output format.
Rank #2
- Document camera with Image reversal function: The image reversal function can be realized through the button (no need to pass the software). When video chatting or picture output, the picture can be freely reversed left and right, up and down; The PAKOTOO document camera connects the computer via USB 2.0 cable, it does not support zoom and HDMI features, nor it does compatible with iPad.
- Document camera for teachers with 3 levels of brightness adjustment and 10 levels of exposure adjustment: The brightness function can be realized by buttons to ensure that you can get clearer images. It can also realize the Selfie fill light function in dark and bright environments
- Document camera for classroom with Foldable: Embedded design, takes up little space after folding, and is easy to carry; multi-joint supports multi-angle free rotation, which can better capture 2D and 3D objects. Maximum coverage area: 16.5" x 11.6" in (A3 paper)
- USB document camera with autofocus: 2448P high-definition document cameras, press the focus (AF) button once, and the document camera will automatically focus once. Move the object under the lens, the image will not be blurred. Macro captures objects as small as 3.94"
- Important: PAKOTOO Document camera is not plug and play. You need to select "USB Camera" in the system that comes with your computer. The document camera is equipped with a USB-C cable, which can be directly used with devices with USB-C interface such as MacBook. Compatible with Windows PCS, Macs and Chromebooks, works with Tiktok, Google Meet, Skyp-Microsoft Teams, Zoom; If you encounter any problems during the use of the product, or the computer does not recognize the camera, please be sure to contact our friendly support team for a quick solution.
Use a session cookie for a one-off capture
If you already have an authorized Access session, the CF_Authorization cookie can authorize a capture when passed as a cookie to the Quick Action. Cloudflare identifies it as an identity-bearing JWT used for Access authorization. Its expiration follows the configured session duration; when neither relevant duration is configured, Cloudflare documents a default of 24 hours. Do not treat it as a permanent credential.
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Use the session cookie only when appropriate for your account and capture. Anyone who obtains it may be able to act as that authenticated session until it expires or is invalidated. Avoid copying it into source control, shared request logs, screenshots of configuration, or an untrusted automation service. See Cloudflare’s authorization-cookie documentation and the Quick Action cookie options.
Choose the page scope and readiness condition
Viewport or full page
Use the viewport options when the desired output is a particular screen-sized view. Set fullPage when you need the entire scrollable document. A long page can produce a much taller image, so choose the scope intentionally and verify the output.
Rank #3
- AIKOR 2MP 3-in-1 USB Webcam, Document Camera and Visualiser: It can be used as a webcam for video chats and teleconferences. The rotating lens allows for image clarity adjustment during live demonstrations. Featuring a flexible 0.47-inch diameter hose design, it can be adjusted to any angle.
- Portable Document Camera: This lightweight document camera weighs only 1.1 pounds, extends up to 20.4 inches in height, and features a 360-degree adjustable and rotatable camera for capturing images and videos from multiple angles. It can present objects of varying sizes and positions, and the weighted base ensures excellent operational stability. This document camera combines portability with high performance, making it an ideal choice for educators and professionals.
- Manual focus webcam: This document camera uses precise manual focus to avoid the repeated unclear focus caused by auto focus. It can achieve virtualized real-life effect shooting when needed, supports 1080P full HD resolution, and refresh rate up to 30 frames per second. Manual focus helps to stabilize the focus and restore the true color and texture.
- Versatile Document Camera: Equipped with a CMOS image sensor and built-in sealed silicon microphone to reduce noise and improve sound quality, achieving excellent noise reduction and color reproduction. Suitable for education, home and office (video conferencing, online teaching, online tutoring, home office, video calls, making teaching videos, animations, games and live demonstrations).
- High compatibility: The visualiser document camera comes with a USB-C cable and can be used directly with devices equipped with a USB-C port (such as MacBook). Compatible with Windows PC, Mac and Chromebook, and can be used with software such as TikTok, Google Meet, Skype, etc. It can be used with all major web conferencing software applications (Zoom, Google Meet, etc.).
Capture one element
Use the Quick Action’s selector option when only a particular element matters. Make sure the selector matches the intended element on the rendered page; otherwise, the result may omit content or fail to capture the expected scope.
Wait for the page to be ready
Browser Run renders the page’s HTML and JavaScript before taking the screenshot. Navigation completion alone may not mean that a client-rendered application, delayed image, or asynchronously loaded section is ready. Use the documented gotoOptions and wait settings that fit the page, or wait for a page-specific readiness condition where supported. The Browser Run page says that the Screenshot endpoint captures the “fully rendered page”; that does not remove the need to validate what a particular URL actually returned. See the endpoint documentation.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteChoose output format and image quality
PNG is the documented default. The quality option requires a compatible image type, so do not assume it applies to every format. Set the type and quality together as described in the current endpoint documentation.
Rank #4
- [Crystal-Clear Imaging and Smooth Video Streaming] 8 Megapixel Ultra-High definition SONY camera captures live images at up to 3264 x 2448 pixels with lag-free video streaming at 30 fps across all resolutions.
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Verify the screenshot before relying on it
An HTTP-successful capture is not proof that the intended protected page appeared in the image. Open the output and check that it shows the expected URL and authenticated content, not an Access login, denial, or generic error page. For important or recurring captures, include a check that detects an unexpected result before storing or distributing the image.
If Access is rejecting a request, verify the application’s token check and authorization policy. Cloudflare’s self-hosted application guidance discusses validating Access tokens at the origin or through Cloudflare Tunnel: Cloudflare Access self-hosted public applications.
Troubleshoot common failures
| Symptom | Likely cause | What to check |
|---|---|---|
| HTTP 401 or 403 | The Access service token is missing, invalid, expired, or not permitted by a Service Auth policy; the Browser Run API token may also lack the required permission. | Check both credential sets, the Access policy, the target application, and the Browser Rendering Edit permission. For strict service-token behavior, 401 or 403 may be returned instead of a login redirect. Service-token documentation. |
| The screenshot shows an Access login or denial page | The request did not carry the intended headers or cookie, or the credential does not authorize the target URL. | Confirm the exact URL and domain, then verify that the correct headers or cookie reached the page request and that the policy permits them. Do not infer successful page authentication from the screenshot API response alone. Screenshot endpoint. |
| A cookie-based capture worked earlier but now fails | The CF_Authorization session cookie expired or was invalidated. |
Obtain a fresh authorized session cookie or configure a service token for unattended use. Follow your organization’s credential-handling rules. Authorization-cookie documentation. |
| The page is blank or partly rendered | The page may require more time or a page-specific readiness condition; the URL may also be returning an unexpected result. | Inspect the page directly, adjust the documented navigation or wait settings, and verify the screenshot scope and viewport. Quick Action options. |
| The whole page or target element is missing | The capture uses viewport scope instead of full-page scope, or the selector does not match the intended element. | Check fullPage, selector spelling, and whether the target exists after rendering. Quick Action options. |
| The image is not in the expected format or quality | The selected format and quality options are incompatible, or the request relies on defaults. | Set the image type explicitly and use quality only with a compatible type, as documented by Cloudflare. |
When to use an interactive browser session
A stateless Quick Action is a good fit when the page can be reached by sending one request with headers or cookies. If the workflow must complete interactive login steps, click through a sequence, or preserve browser state between actions, use a Browser Run session controlled with Playwright, Puppeteer, or CDP. Cloudflare’s Browser Run getting-started guide describes browser sessions and setup.
Best Value
- 8MP visualiser with adjustable image reversal: In video chat or image output, the image can be freely adjusted left/right and up/down; you can also manually adjust the reversed image that appears in the device to a normal image. The first usb camera that can manually adjust image reversal
- Adjustable Image Brightness: the usb document camera has brightness buttons, you can manually adjust the image brightness with 10 degree, to make sure that you can get the clear image. 3 levels of brightness adjustable, which can eliminate shooting problems under difficult lighting conditions, allowing you to capture objects in dark and bright environments, and it can also achieve Selfie fill-in function
- Foldable visualiser for teaching: embedded design, occupies a small space after folding, easy to carry; Multi-joint support with multi-angle rotate freely usb camera can capture 2D and 3D objects better and shooting high-definition images and videos. Maximum covering area: 16.5" x 116" in (A3 paper)
- 8MP/2448P document camera for teachers with 30fps: using High-end image sensor, it output ultra-high-definition images and videos live transmission, up to 2448P megapixels. Press the focus button once to automatically focus the document camera once. Moving the object under the lens, the camera will not be arbitrary automatic focus and the image dance. Macro can capture objects as close as 3.94"
- Plug-n-Play & High Compatibility: the Kitchbai Visualiser comes with a USB-C cable that allows for instant plug-and-play operation for distance education and web conferencing. It applicable to Windows PCS (Windows 7/8/10/11) , Macs (OS10.11 or higher), and Chromebooks(38.00 or higher), and work with Tiktok, Google Meet, Skyp-Microsoft Teams, Zoom; it has built-in dual silicon microphones, which can reduce noise and improve sound quality
Performance, reliability, and cost considerations
- Wait only as long as the page needs. More conservative readiness conditions can reduce incomplete captures but may keep a browser task open longer. Prefer a page-specific readiness condition where supported rather than an arbitrary delay.
- Keep captures reproducible. Use consistent URL, viewport, page scope, and wait behavior, and inspect results for login or denial pages before downstream use.
- Protect sensitive output. Screenshots of authenticated content can contain confidential information. Apply the same storage and access controls you would use for the page itself.
- Check your account’s current limits and costs. Cloudflare documents Free and Paid Browser Run plans, but the current account-level quotas and costs are not established here. Confirm the applicable terms in Cloudflare’s Browser Run documentation and account settings.
Or skip the browser setup
ScreenshotNeo is a website screenshot API and MCP server. For a Cloudflare Access-protected page, it can send custom headers, including service-token headers, with a screenshot request; your Access application still needs to authorize that token. Keep the secret in your own secret store.
curl -G "https://api.screenshotneo.com/v1/shot"
-d access_key=YOUR_API_KEY
--data-urlencode url=https://protected.example.com
-H 'CF-Access-Client-Id: YOUR_CLIENT_ID'
-H 'CF-Access-Client-Secret: YOUR_CLIENT_SECRET'
-o shot.webpSee the ScreenshotNeo API documentation for request options. Cookie banners, popups, and chat widgets are removed before the shot; bot checks, blank pages, and failed loads are never billed. Its MCP server lets AI agents take screenshots. The free plan includes 1,000 screenshots a month with no card, and paid plans start at $5 for 3,000.
Sign up for ScreenshotNeo’s free plan.
Frequently Asked Questions
Can a Cloudflare Access service token be used as a browser login session?
No. It authorizes the service-token request when the Access policy permits it; under strict service-token authentication, a successful request does not create a reusable CF_Authorization cookie.
Does the screenshot endpoint’s successful response guarantee the page was authenticated?
No. Open and verify the returned image; it may show a login, denial, or error page instead of the intended protected content.
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