Well, the website has more than one header I don’t expect. I’m not familiar with the Amazon cloud. Is it normal it adds all these extra stuff?
x-cache: RefreshHit from cloudfront
Not all AWS services do; in this case, the site was served over the Cloudfront CDN. Other services are less noisy.
In the spirit of sharing fun header tidbits: the x-and-cf-pop header shows the point of presence that served this request. AWS uses ICAO airport codes, so this came from Frankfurt, Germany. I got an ORD value there so my data came from Chicago.