When I compare the closures listed on the DLP official website with dlpguide I notice a couple of differences. For example on dlpguide the Moteurs... Action! Stunt Show Spectacular is closed from 5th to 16th October and there is no mention of this on the actual DLP closure list. Conversely the official site has Slinky Dog Zigzag Spin closed in early October but dlpguide has no mention of this. Am I right to assume the official DLP website is the most up to date list?
I noticed that the DLRP guide page lists more closures for September than the official DLP page too, but to be honest I'm not sure which one is most accurate.
I think that the only way to find out which rides are closed for sure is to call DLP and ask them.
The one and only actual list is at the Disneyland official site.