Error 521 is a common Cloudflare Status error code that occurs When you start working on a WordPress site or using your browser. It usually occurs when the WordPress site’s server refuses a connection with Cloudflare. In this blog, we are going to share what are the common causes of this error. In this way how we can fix this issue by making some simple changes.
What is Error 521 Web Server is Down?
As we discussed earlier Error 521 is a Cloudflare error. it occurs when we start working on a WordPress site or using your browser.
Earlier in a General scenario, your web browser can connect to the cloud fair successfully without any error but if your Cloudflare Was not able to connect to the original web browser which is also know as WordPress site server then this error occurred.
In particular, Cloudflare attempted to associate with your WordPress site’s server yet got an association reject blunder accordingly.
Know the Causes of Error 521 Message
Well, there are two main causes that can lead to this error in your WordPress sites are:
The first and the most common cause of this error in your WordPress sites is maybe your server is down. Regardless of uşak escort all the other things are designed appropriately, assuming that your WordPress site’s server is disconnected, Cloudflare just will not have the option to associate.
The other cause that you cannot avoid for the error is the web server might be running fine but blocking prepared requests due to some expected reason. Because of the way of working of cloud some server-side security solutions might stop the Cloudflare IP addresses from accessing.
Since Cloudflare is an opposite intermediary, all of the traffic coming to your starting point server will antalya escort up as though it’s approaching from a little scope of Cloudflare IPs (rather than every individual guest’s interesting IP address). All things considered, some security arrangements will see high traffic from a set number of IP addresses as an assault and square them.
Whenever that occurs, Cloudflare will not have the option to interface and will antalya escort the Error 521 message all things being equal.
How to Fix Error 521 for Cloudflare and WordPress
Now we have discussed all the possible causes for this error now it’s time to find out the solution how can we fix this error:
Step 1: Check Whether the Origin Server is Online
Before going to find out any technical problem behind the server error 521. you have also to check that the WordPress site server is online and working properly. If it is not working the way it adana escort work then there is no need to go to any technical troubleshooting methods.
To check uşak escort the server is working or not you have to run a c URL command. if you are using Mac or Linux then you can run this command directly on the terminal.
If you are a Windows user then it doesn’t have to see you are installed then you have to install it on your system in a simpler way full stop to do so you have to use Key CDN’s online HTTP header check tool.
You have to plugin in http://126.96.36.199, where 188.8.131.52 is the real IP address of your server.
Step 2: Check all Cloudflare IP Addresses in your server’s firewall
If you find that the WordPress site of your server is functioning in a correct way and still you are getting a message of error 521 then you have to try the next step. To do so you have to check all the cloudflare IP addresses and ensure that your server is not blocking these addresses.
You’ll need to ensure you’re not hindering these IP addresses in .htaccess, iptables, or your firewall. What’s more, you’ll likewise need to ensure that your facilitating antalya escort doesn’t rate restricting.
If you’re not sure how to do this, reach out to your host’s support. At Kinsta, these IP ranges adana escort already whitelisted.
Step 3: Consider more specific issues
Now the third step is you have to check the both above mentioned steps and find they are working properly. Then it’s time to find some specific technical errors depending on the configuration of your server.
You have to check if you are you and just started using Cloudflare’s http then you have to check that the original server might not be confethiye escort bayand. You have to check that the original server is allowed the cloudware IP addresses to access the port 443. If you can not allow your firewall to do this then you can try using stripe flexible SSL to fix it instead of using full SSL Cloudflare.
2) Make sure you’re utilizing the latest adaptations of Bad Behavior or mod_security, if material.
3) If you’re utilizing the mod_antiloris or mod_reqtimeout Apache modules, impair and dump tsot modules.
Here we have discussed error 521 what are the common causes of this error and how can we fix it. I hope it will help you to resolve this error. If you are facing such type of problems then you can connect with us. We have a technical support team who can provide you with the bursa escort possible solution to your problem.