Different CDN performance for CNAME subdomain

Website, Application, Performance DNS & Network
1

Hi,

currently I’m observing a strange CDN performance behaviour for a site foo.bar.

In Cloudflare dns-settings we have a record

foo.bar A 1.2.3.4
and
www.foo.bar A 1.2.3.4

Both entries are getting proxied by CloudFlares CDN network.
By testing global CDN performance of foo.bar and www.foo.bar I am getting different different request times. In detail the response time of www.foo.bar is round about six times higher than the ones for foo.bar.

Thanks a lot to anyone who can give me some advice, to explain this (to me strange) behaviour!

3

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