15 minutes ago, Jos Koot wrote:
The last two days http://racket-lang.org/ is loading rather slowly
on my machine (internet explorer, windows 7, dual core, 4 Gb) Any


If you can run "mtr" or other traceroute utility, you might see whether you've been getting a flaky route or where a slow router is.

Another possible cause of slowness that might affect only a small percentage of people is if there's DNS issues, such as your computer is not caching the DNS resolutions, and it's repeatedly going to resolve a name, and the DNS server it's using is slow at resolving "racket-lang.org" or "www.racket-lang.org" for whatever reason (e.g., it's not keeping a cache very long and keeps going to an authoritative server, and its link to the server is slow). (I tried all 4 authoritative servers for racket-lang.org just now, and they were all quite speedy for me, but US-based.)

Noticing that you're probably not in North America, my first guess is that you're hitting DNS inefficiencies like the example I gave, or you're getting a really low-bandwidth route.

Keep in mind that, with most Web sites, you might be accustomed to page load performance due to CDNs that mirror most of the page content near you in the network. With racket-lang.org, there's no CDN, and everything might be coming over a very long link.

Other ideas that come to mind, such as your ISP accidentally QoS-ing the heck out of racket-lang.org, or ISP routing racket-lang.org over high-latency satellite because they are a Python fan, seem unlikely.

(My own numbers for www.racket-lang.org home page aren't representative, since I'm coming from residential Internet in the same metropolitan area as the server, albeit 14 routing hops away... Right now, I average 0.6 seconds for a complete uncached page load, from start of reload to finishing render, including the funny JS'd download button images.)

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