Url changed from <a href="http://blog.acolyer.org/2016/03/28/speeding-up-web-page-loads-with-shandian/" rel="nofollow">http://blog.acolyer.org/2016/03/28/speeding-up-web-page-load...</a>, which points to this.<p>(They are good writeups, so we make a point of not always changing the URLs, but HN does call for original sources, especially when the material is something that this audience is comfortable reading.)