Summary: Cloudflare is not nearly as fast as Cloudfront. Use httping to measure performance NOT ping.

Update: Google's PageSpeed now capture my bugbear under Improve server response time.

If you serve (the majority of your) customers in say Singapore, your Web server (httpd) should be in Singapore. Understood?

ICMP ping times to your host should be <10ms.

If you run a non-optimised bog standard Apache2 httpd instance on that host, your httping times should be about ~40ms. Understood?

If you don't want to install httping, you could use something like time curl -I "http://sg.hackandtell.org".

x220:~$ httping sg.hackandtell.org
PING sg.hackandtell.org:80 (sg.hackandtell.org):
connected to 117.121.241.187:80 (293 bytes), seq=0 time=28.76 ms
connected to 117.121.241.187:80 (293 bytes), seq=1 time=31.89 ms
connected to 117.121.241.187:80 (293 bytes), seq=2 time=25.64 ms
connected to 117.121.241.187:80 (293 bytes), seq=3 time=23.24 ms
^CGot signal 2
--- sg.hackandtell.org ping statistics ---
4 connects, 4 ok, 0.00% failed
round-trip min/avg/max = 23.2/27.4/31.9 ms

Now if you are Google, you have machines all over the world and a clever DNS system that makes sure you are served by the closest machine. I.e. if you are in Singapore, you get your search query answered by a httpd server in Singapore.

x220:~$ httping www.google.com
PING www.google.com:80 (www.google.com):
connected to 74.125.235.49:80 (768 bytes), seq=0 time=74.84 ms
connected to 74.125.235.49:80 (768 bytes), seq=1 time=32.56 ms
connected to 74.125.235.49:80 (768 bytes), seq=2 time=42.33 ms
connected to 74.125.235.49:80 (768 bytes), seq=3 time=42.97 ms
^CGot signal 2
--- www.google.com ping statistics ---
4 connects, 4 ok, 0.00% failed
round-trip min/avg/max = 32.6/48.2/74.8 ms

Now if your site has http ping times greater than 40ms, you have FUCKED UP.

x220:~$ httping hackerspace.sg
PING hackerspace.sg:80 (hackerspace.sg):
connected to 208.97.177.38:80 (395 bytes), seq=0 time=1832.28 ms
connected to 208.97.177.38:80 (395 bytes), seq=1 time=1865.23 ms
connected to 208.97.177.38:80 (395 bytes), seq=2 time=1550.14 ms
^CGot signal 2
--- hackerspace.sg ping statistics ---
3 connects, 3 ok, 0.00% failed
round-trip min/avg/max = 1550.1/1749.2/1865.2 ms

Yes, you can deploy all range of caching tricks to improve load times, but that only happens if you have VISITED THE WEB PAGE BEFORE.

Please make the initial load times of your Webpage <40ms. If you can't afford to have a httpd in every country of the world like Google, I recommend Amazon CloudFront. Not Cloudflare which do have servers in lots of countries, but they don't cache on that http level, they only reverse proxy through their optimising bells&whistles network making their service slow, i.e. httpings >200ms.