China is censoring Google's App Engine


Back in WebPageTest, a site for performance tests partnered with Google, offered tests from China (Jiangsu province) which is forfeit now. I got 404 Not Found errors for all static files delivered from Google's App Engine (identifiable by the subdomain) since China's Great Firewall blocks it (though not Google at all) – see waterfall image below. You can bypass it by using App Engine under your own domain but this requires paid Google services.

First view waterfall image from Jiangsu province, China taken on . Red rows represent 404 Not Found status codes. Only my Google App Engine subdomain is affected.

WebPageTest has Shanghai in its portfolio. Now I do not get 404 errors but instead the Chinese client simply refuses to submit any requests to App Engine.

First view waterfall image from Shanghai, China taken on . No requests to static files served from App Engine were submitted at all.

On the other hand I succeeded to register with Baidu webmaster tools with the help of Chrome's translation engine, and Baidu lists my index page at least although it still embeds static files from App Engine. Funnily enough I had to use a Googlemail address there since another one was rejected.

words, ≈ characters