Error 525 Showing on my Website

I cannot access my website. Showing error 525. Really impacting on my users experience. Any help please?


Kindly, may I ask have you checked within the steps from below articles regarding this error showing up for your Website?:

It should have to be something with SSL certificate at your host/origin and Cloudflare SSL options.

May I ask, before moving to Cloudflare, have you had an SSL certificate at your host/origin server for your Website? Check and make sure you setup and have the Full (Strict) SSL.

Here is a way to re-check if correctly setup the SSL with Cloudflare:

To troubleshoot more about SSL issues:

Regarding available SSL options at Cloudflare dashboard, check here:

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Yes I have. I have contact my host but no solution.

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What SSL option have you got selected at Cloudflare dashboard for your domain at SSL/TLS -> Overview tab?

As already asked, have you had an SSL certificate? Is it still valid?

May I ask what is your domain name?

Is your Web server working over 443 or some other port compatible HTTPS with Cloudflare one’s from the list below?:

Just to make sure, is Cloudflare allowed to connect to your origin host/server?:

Cloudflare IP addresses can be found here:

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Hi. I have a similar problem. I did not make any changes in the settings. Hosting indicates a problem with the cloudflare.

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SSL/TLS is selected as Full

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@Nikolay_Strygunov and @richharry2much , may I ask who are your hosting provider?

Maybe the same and the same has issue? Or a different one?

@Nikolay_Strygunov May I ask have you tried going through the steps from my post above?

Should be Full (Strict) SSL if possible. Does anything changes when you switch it?

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Host is Namecheap.

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Oh let me switch the SSL and confirm

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Can you check if you have ca-certificates installed and updated?

Is your app listening on https 443 port?

What is your output of running openssl version -a and which openssl?

What happens when you temporarly disable Cloudflare? (Pause or put to Development mode or make :orange: records to :grey:)

Do you have SSL enabled for your application at your Web server (Apache config or Nginx vhost file)?

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Host is Hostiq. The problem occurred about 40 minutes ago. I am using encryption mode is Full (strict). This setting was last changed 4 years ago.

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There is a way to go with Cloudflare CA Origin Certificate using the steps from below to achieve Full (Strict) SSL:

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Hey I’ve the same problem about 2 or 3 hours. My hosting server think that this problem cause by Cloudflare.

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When I pause cloudflare, the issues gets resolved

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As there are a few of you with seemingly similar issues, can you paste the response from (replace with the domain you are having trouble with) so we can see which Cloudflare datacenter you are hitting?

Also, when you pause Cloudflare, is your site working with HTTPS?

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That domain does not respond for a very long time for me and then returns the 525. I’m connecting through AMS, so I don’t think it is connected to a specific datacenter.

If you pause Cloudflare, does your site work with HTTPS? You can pause Cloudflare from the Overview tab of the Cloudflare Dashboard, bottom right under Advanced Actions.

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After pause, the site works again.

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After re-activation of the cloudflare, the site continues to work without any visible problems.


uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36

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