Hi @luke - thanks for the response.
The 2 second request was after the 32 second request. The first request was slow because the file was not in the CDN cache. The second request was faster because the file was being served from memory by the CDN node cache.
That would make sense except for the fact I do see very slow responses after very fast ones, despite the etag not having changed (i.e. file contents identical)
e.g. take the following requests from just now (all resulted in etag 0144f3faa7786907560fdbddda3195a5-ssl-df):
All took ~32 secs. Which is somewhat suspicious in and of itself, because the timings are so similar.
Is there some sort of rate limiting going on here?