A. DNS record (foo.example.com CNAME api.darksky.net)
B. TLS forward proxy (e.g. Cloudflare Full SSL https://www.cloudflare.com/ssl/)
C. Host header rewrite (e.g. Cloudflare Page Rules https://support.cloudflare.com/hc/en-us/articles/206652947-U...)
A. DNS record (foo.example.com CNAME api.darksky.net)
B. TLS forward proxy (e.g. Cloudflare Full SSL https://www.cloudflare.com/ssl/)
C. Host header rewrite (e.g. Cloudflare Page Rules https://support.cloudflare.com/hc/en-us/articles/206652947-U...)