How to Fix CloudFlare Error 520?


In the digital age we live in now, websites are very important to the growth of companies. A well-optimized website is easy for people to use and has a better ranking in search engines. But sometimes technology troubles can make a website not work right.

One of these issues is Cloudflare Error 520, which can be annoying for both people who own websites and people who visit them. In this detailed help, we’ll look at what’s causing this problem and show you how to fix it.

By following the steps in this article, you can fix Cloudflare Error 520 and make sure your website works well.

What is Cloudflare Error 520?

Cloudflare is a well-known content delivery network (CDN) and security service that stands between your website and the people who visit it. problem 520 is a status number that shows up when a server that is a gateway or proxy for a website has an unexpected problem.

how to fix cloudflare error 520

It means that the server that runs your website called the “origin server,” gave Cloudflare an answer that was either empty or not complete. Because of this, the user sees the error message, which is annoying and could slow down your site and make it rank lower in search engines.

What causes Cloudflare Error 520 to happen?

Cloudflare Error 520 can be caused by a number of things, and to fix it correctly, you need to find out what they are. Some of the common reasons why people make this mistake:

  1. Error 520 means that Cloudflare can’t connect to your base site because it’s down or isn’t responding. This could be due to maintenance, a busy server, or problems with the technology used by your hosting business.
  2. Error 520 means that Cloudflare requests can’t get through because your server’s firewall isn’t set up correctly. It is very important to make sure that your security rules are set up correctly so that Cloudflare’s IP addresses can get through.
  3. If you have a Web Application Firewall (WAF), Cloudflare and your main server might have trouble talking to each other. Error 520 can happen if the rules are too strict or if the settings are wrong.
  4. Error 520 means that Cloudflare can’t connect to your website because your DNS settings are wrong. It is important to check your DNS records again to make sure they are set up correctly and point to the right IP address.

How to Fix Error 520 in Cloudflare?

Now that we’ve talked about the most common causes of Cloudflare Error 520, let’s talk about what you can do to fix it and get your website back up and running:

1. Check Server Status

First, you should see how well your base service is running. Check to see if it works and is live. If you need to, you can call your hosting company to fix any computer problems that might be causing the error.

2. Check the Firewall Settings

Check your site’s firewall settings to make sure that Cloudflare requests can get through. Make sure Cloudflare and your server can still talk to each other by putting Cloudflare’s IP addresses on a whitelist.

3. Set up a Web Application Firewall (WAF)

If you already have a WAF, check its settings to make sure it is set up right. Change any rules that are too strict and could be stopping Cloudflare from replying to real requests.

how to fix cloudflare error 520

4. Verify DNS Configuration

Check your DNS settings again to make sure they point to your server’s IP address properly. Fix any wrong settings and give the new settings time to spread through the DNS network.

5. Clear the Cache of Your Browser

Cloudflare Error 520 can sometimes be caused by problems with the user’s cookies. Tell people who can’t find your site to clear the cache on their computers and try again. This could get rid of the Error 520 message and fix any cookie problems.

6. Turn off Cloudflare Temporarily

As a step in fixing this, you can stop Cloudflare’s services to avoid it for a while. This will let your guests and your root server talk directly with each other. This will help you figure out if Cloudflare is really the trouble. Don’t forget to turn Cloudflare back on once the problem is fixed.

7. Monitor Server Logs

Keep an eye on your server logs to see if there are any error messages or strange things going on that might help you figure out what’s causing Error 520. When you look at the logs, you can find out useful information that can help you find a good answer.

how to fix cloudflare error 520

8. Contact Cloudflare Support

If you’ve tried all of these steps and still can’t fix Error 520, you should contact Cloudflare’s support team for more help. They have a group of experts who work together to fix problems and give advice.

How to Make Sure This Error Doesn’t Happen Again?

Even though it’s important to figure out and fix Cloudflare Error 520, you can make it less likely to happen again by taking preventive steps. If you do the following, you can stop Error 520 from happening again:

  1. Make sure that your server has everything it needs to deal with the traffic and needs of your website. Check the speed of the server often and, if necessary, update it. It will keep running at its best if you do this.
  2. Keep all of your computer’s software, like the operating system, web server, and apps, up to date. Updates often fix bugs and add security patches that can fix problems that could lead to Error 520.
  3. Set up the protection of your server carefully so that it only lets in the information it needs and stops any possible threats. Check your firewall rules often and change them as needed to make sure they meet the needs of your website and security standards.
  4. Choose a DNS company with a good name and services you can count on. If you want to avoid DNS problems, choose a service with a strong network infrastructure and a good track record of being up.
  5. By backing up your website often, you can be sure that you have a recent copy of your data in case something goes wrong. This makes it easy to fix things quickly and cuts down on the time they might be broken.
  6. Use tools for website tracking to keep an eye on how well and how often your website works. These tools can tell you right away if there are any problems, so you can take action right away and avoid long periods of Error 520.


Cloudflare Error 520 can be annoying for both the people who run websites and the people who visit them. But if you know what caused the problem and take the right steps to fix it, your website will work again.

Check the server’s state, look over the firewall and DNS settings, and, if necessary, think about skipping Cloudflare for a while. If you take steps and keep an eye on how your website is doing, Cloudflare Error 520 is less likely to happen in the future.

If you need more help, don’t be afraid to get in touch with Cloudflare support. Cloudflare Error 520 needs to be fixed as soon as possible so that your website works well and your users have a good experience.

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