From somewhere in the Northwest nearish to Manchester, UK, on a slow link, using apachebench (ab -n20 "http://...
:
No CDN:
Connection Times (ms)
min mean[+/-sd] median max
Connect: 140 330 676.2 144 3156
Processing: 1200 1410 471.4 1232 3240
Waiting: 168 215 176.5 173 964
Total: 1347 1740 848.7 1388 4364
CDN:
Connection Times (ms)
min mean[+/-sd] median max
Connect: 75 87 26.4 80 196
Processing: 416 481 118.8 440 868
Waiting: 88 119 70.9 99 404
Total: 491 568 139.0 519 1064