Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: botboutique.com.br

I ran this command (to install my cert): certbot certonly --dns-cloudflare --dns-cloudflare-credentials /etc/letsencrypt/cloudflare.passwd -d botboutique.com.br -d *.botboutique.com.br

It produced this output: SSL_ERROR_RX_RECORD_TOO_LONG

My web server is (include version): Nginx 0.27

The operating system my web server runs on is (include version): Ubuntu 18.04 LTS

My hosting provider, if applicable, is: VPS at Locaweb (Brazil)

I can login to a root shell on my machine (yes or no, or I don’t know): yes

I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot): 0.27.0

Hi friends!

I made a research in the forum and I didn’t found a clue that help me on this,mainly because I found a lot of info on how to explore the problem when using Apache, and I’m using Nginx. So, sorry for open another SSL_ERROR_RX_RECORD_TOO_LONG thread.

As I writed above I used the Cloudflare’s cerbot version and it install the cert flawlesslly in my domain but when I try to access any other web app in my domain returns that error.

Any clue will very appreciated.



Hi @LuizC

I don’t understand your question.

means: Your port 443 is a http port, not a https-port.

But there is a check of your domain, ~90 minutes old. Not Grade Q (http over port 443), instead Grade C - no critical problem.

Same loading your domain with my browser - a valid certificate.


Hi @JuergenAuer

Sorry my lack of objectivity. I was trying to say that I have a fully functional SSL certification, but when I try to access other web apps, like a NodeJS app, I had this error. Botpress and Strapi instalations (both NodeJS apps) returns that.

How to fix it?

Yes, I was searching this forum and I saw this suggestion to check my domain using it. But I must to confess that I didn’t understand it’s results nor you comment. Could you explain it me?

1 Like


a problem of that other web app, not of your website.

There is no error visible.


Thanks, @JuergenAuer!

Glad to read it.


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