I’m getting “HTTP/1.1 500 Internal Server Error” on RedBot, Redirect-Checker or most other external validator services, I get 200 HTTP code using curl and the website is working fine otherwise. I’ve searched on the forum and found on other similar topic but it was due to a worker issue but I’m not using any of these.
The problem disappears if I use developer mode and bypass the CF network.
Any help will be appreciated.
Might be Bot Fight Mode, or Browser Integrity Check, or Security Level, or custom-made Firewall Rule(s) are blocking them in some way? 
Is your Website working for a normal visitor in a normal Web browser?
Can you share your domain name here so we could double-check this?
The website works fine and none of these services are on as I’ve already checked it multiple times.
I did wanted to share the website in first post but apparently I was not allowed.
Either way it is icustomboxes DOT com
Bump!
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