CloudFlare Error 1020 Access Denied: What is It and How to Fix It?

Cloudflare Error 1020 (Access Denied) This usually happens when users try to access certain websites through their browser. In most cases, this happens when a connection request poses a threat to the website.

Cloudflare error 1020

What is Cloudflare Error 1020?

This particular Cloudflare error code occurs almost exclusively on sites using Cloudflare CDN to optimize the site and provide better security.

Basically, if the end user sees the 1020 error, it is because the IP address was blocked due to security issues detected by Cloudflare CDN. While most of these concerns are generally valid, they are there Situations of IP address blocking when it’s not really dangerous.

After thoroughly investigating this particular issue and reviewing various user reports, it turns out that there are several underlying causes that could trigger a false positive of this error code:

  • Violation of firewall rules – If you encounter this problem as a normal user trying to visit a website, you are probably seeing the error code because the web server is indicating that you have broken a firewall rule. In this case, you need to follow a series of troubleshooting steps to identify and fix the problem.
  • IP range is blocked – Another reason that can cause this error code is when the IP range your computer uses when trying to access the web server is flagged as a potential security risk in the internal CDN settings and then blocked.
  • Cloudflare Cookie Conflict – Because Cloudflare uses cookies, which are placed on your computer to store information about communicating with the site, you can expect conflicts regarding the use of these cookie files. Under certain circumstances, this may result in end-user access being unavailable. In this case, making sure the use of cookies is enabled and clearing the cookie cache should be enough to resolve the issue.

noteNote: Each of the scenarios presented above assumes that a local event on the visitor’s machine disrupts the Cloudflare CDN and triggers a 1020 false positive error. Legitimate security issues are not covered in this article.

Now that you know all the scenarios that could be responsible for throwing error 1020 due to local event, here are a number of fixes that other affected users have successfully used to resolve this issue:

Make sure your browser allows the use of cookies

It’s important to understand that Cloudflare relies on cookies to customize certain security features on websites where it is enabled. This allows Cloudflare’s CDN service to provide visitors with a fast, personalized, and relevant experience.

This is a great feature as long as it doesn’t block access to the site for some users who are Using a browser that actively blocks cookies.

In most cases, the use of cookies is blocked by 2 popular scenarios:

  1. Your browser is configured to reject cookies
  2. You have installed an extension or plug-in that blocks certain cookies.

Depending on the situation you are in, the solution will vary exponentially. But to make it easier for you, we’ve created two separate sub-guides to help you troubleshoot a cookie-related issue that’s causing error 1020:

Activate cookies in your browser

Since this scenario occurs almost exclusively with Mozilla Firefox and Google Chrome (as well as all other Chromium-based browsers), we have put together two sub-guides that will walk you through the process of enabling cookies and cookies on both. browsers:

Enable cookies in Google Chrome

  1. Open Google Chrome and click the action button (top right) in the corner of the screen.
  2. Then click on the pop-up menu that just appeared Settings.
    Go to the settings menu in Google Chrome
  3. once inside settings menu, click the privacy and security Tab in the vertical menu on the left side of the screen.
  4. then under the privacy Y security click tab Cookies and Other Website Data.
    In Chrome, click Cookies and other site data
  5. once inside Cookies and other website data menus, check which switch is enabled General configuration.
  6. When the current setting is set to Block third-party cookies or from Block all cookieschange the switch on Allow all cookies.
    Allow all cookies in Google Chrome
  7. Once the cookie settings have been changed, please restart your browser and reload the Cloudflare protected page that was previously throwing the 1020 error to see if the issue is now resolved.

Enable cookies in Mozilla Firefox

  1. Open Mozilla Firefox and click the action button in the top right corner of the screen.
  2. Then click on the pop-up menu that just appeared options.
    Access the options menu
  3. once inside possibility use the menu on the left to click on it Privacy & Security.
    Access to the workplace Privacy and security
  4. Then go to Browser Privacy and make sure the associated switch is set to Default.
  5. Relaunch your browser and see if the issue is resolved the next time you launch your browser and access the same website that uses Cloudflare.

Disable cookie blocking extensions

Even if your browser is set to accept cookie content, you may also see a third-party extension or plugin that blocks cookies, which are considered intrusive. This applies to Mozilla Firefox and Google Chrome.

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Here is a list of Chrome extensions and Mozilla Firefox add-ons that can block cookies and cause the 1020 error on Cloudflare:

  • Origin of uBlock (Google Chrome, Mozilla Firefox)
  • Privacy Badger (Google Chrome, Mozilla Firefox)
  • Spirit (Google Chrome, Mozilla Firefox)
  • Separate (Google Chrome)
  • Disable cookies (Mozilla Firefox)
  • Automatic deletion of cookies (Mozilla Firefox)
  • cookie brother (Mozilla Firefox)
  • no hyphens (Mozilla Firefox)

If you are using any of the above extensions/add-ons in Mozilla Firefox or Google Chrome (or a similar add-on or extension), please follow one of the sub-guides below to prevent them from getting the 1020 error Cause cloudflare:

Disable the problematic extension in Google Chrome

  1. First, open your Google Chrome browser and make sure it is updated to the latest version available.
  2. Then click the Share button you see in the top right of the screen.
  3. Use the pop-up menu that just appeared to access it More Tools > Extensions and open the Google Chrome Extensions tab.
    Access the Extensions tab
  4. once inside extensions scroll through the list of installed extensions and locate the problematic extension that you suspect is causing the 1020 error on Cloudflare.
  5. If you find that the extension is causing the problem, simply click the toggle associated with the problematic extension to disable it.
    Remove the problematic extension

    Note: If you don’t need this extension, you can easily uninstall it completely by clicking Remove left of the spreader lever.

  6. Once the extension is disabled, restart your Chrome browser and navigate to the same website that was previously showing error 1020.

Disable the problematic extension in Mozilla Firefox

  1. Open Firefox and click the action button in the top right corner of the screen.
  2. Click on the menu that just appeared Additional Modules from the list of available options.
    Access the Add-ons menu
  3. once inside Additional Modules click tab extensions in the menu on the left.
  4. Next, disable the toggle associated with the problematic plugin that may be preventing your browser from accepting cookies.
    Accept the problematic extension

    Note: You can also completely uninstall the plugin if you don’t need it by clicking and clicking on the action button next to the disable toggle Remove.

  5. Restart your Firefox browser and accept the same Cloudflare-protected webpage that previously generated the 1020 error.

If none of the possible cookie-related fixes were effective or applicable to you, continue to the next possible solution below.

Clear your browser’s cache

Note that you can also see this error in a situation where the web server stops throwing the error: It is possible to locally cache (save) a copy of this error. and so your browser will be restored each time you access it.

If you’ve encountered this error before in a legitimate way, going to your browser settings and clearing all your cache data and cookies may help.

However, the exact instructions on how to do this vary depending on the browser you use. Some browsers may allow you to selectively wipe data to remove only the website affected by the 1020 error.

To make it easier for you, we’ve put together a guide to show you how Clear the cache and cookies of the most popular browsers.

Clear cache and cookies

If you have already followed the instructions on how to clear the cookies and cache related to the problematic website that is showing error 1020, then move on to the next method below.

How do I fix access denied Cloudflare?

How To Fix Cloudflare Error 1020: Access Denied
  1. Check Whether Cookies Are Allowed.
  2. Clear Your Cache & Cookies.
  3. Check Your Server Configuration.
  4. Contact Cloudflare Support.

Why is Cloudflare blocking me from websites?

Cloudflare protects against DDoS attacks by automatically blocking suspicious-looking traffic, especially traffic that may come from a non-human source. This is where human verification or CAPTCHA comes in. These methods can usually tell the difference between a machine or a real person trying to access a website.

Contact the site owner

If none of the above methods to fix the problem worked and the problem occurs on every browser you try, The problem is probably related to a firewall rule violation.

Now this is totally specific to the website in question as the website owner likely has custom firewall rules preventing you from visiting the website.

In this case, your only hope is to get past the 1020 error screen contact the site administrator and ask her to Check the firewall logs and add your IP to the whitelist.

EXPERT ADVICE: The contact information can usually be found via the Contact us Page: Most websites have one.

If that doesn’t work and you can’t reach the contact page, you’ll need to do a Whois search to find the domain owner and the owner’s contact information. you can use the… WHOIS domain tools service to find this information.

Source link:appuals.com

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