Why am I seeing a 'cloudflare-nginx' server signature in my HTTP headers?

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Grade: Education Subject: Support
Why am I seeing a 'cloudflare-nginx' server signature in my HTTP headers?
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The 'cloudflare-nginx' server signature indicates that the request passed through Cloudflare's infrastructure, which utilizes Nginx. This is normal behavior when using Cloudflare's services and confirms that Cloudflare is acting as a proxy for your website.