Is it cloudflare branded normal error page (https://cloudflare.com/cdn-cgi/error/503), or is it blac

Is it cloudflare branded normal error page (https://cloudflare.com/cdn-cgi/error/503), or is it black & white and looks like a nginx error page? Do you get any other error code in the visible error (like a internal 1xxxx/10xxx)?
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