Slow response from code.jquery.com

[TWPonKubuntu]

In the last two weeks (roughly) I've seen a fairly consistent problem (slow or no response) with sites which use code from code.jquery.com. It is not occurring absolutely every time, but on the order of 50%, for some sites.

The effect is effective failure to retrieve/transfer data from that url (code.jquery.com).

For example, right now these sites are hung while trying to access the jquery server at that url.

http://www.thedailysheeple.com/
http://www.offgridquest.com/

These are not the only sites displaying this slow behavior. Note that I have fast access to other sites, so the problem does not appear to be on my end.

Does anyone else see this?

[ronw]

Both open quick; a few seconds.

[TWPonKubuntu]

Thanks ronw, still slow on my side.

[SteveRiley]

Perhaps your DNS server is slow. Where are you obtaining DNS from? Try changing to 4.2.2.1 (primary) / 4.2.2.2 (secondary) and restart your PC. Then visit those pages. Any difference?

4.2.2.1..6 are public nameservers managed by Level 3 and are typically very fast. Level3 is one of seven Tier 1 providers that make up the Internet backbone. Their servers should be only one or two peering points away from your ISP (for those in the United States).

[TWPonKubuntu]

SteveRiley, Thanks for the suggestion. Of course now my speed for the two example sites is back up to "normal" so the test would not reveal anything. Since it is a recurring problem, I'll wait until the speed drops again and test your idea. I'll report back after the test.

[TWPonKubuntu]

Testing with hard coded DNS primary/secondary IP's
No change in speed, the data from code.jquery.com, on those two sites, is just very, very slow to download... but only intermittently.
This is not a show-stopper for me, since it only happens on sites which link code from code.jquery.com.
I wondered if anyone else was seeing this issue. It could be a factor of my ISP speed which is limited to about 20kb/sec (I know, that is painfully slow, but it is what it is...)
Thanks for your help and we can let this thread die.