There are numerous protocols for post achilles tendon rupture rehabilitation. The common denominator is that most newer studies are finding that faster early mobilization protocols result in fewer re-ruptures and better healing compared to older more conservative protocols.
The vast majority of online protocols state that they are for post surgery patients, but non-surgical patients can generally follow most of the same guidelines.
— Dr. Nicklas Olsson, quality and lengthy report from Sweden, 2013 Has surgical (page 96) and non-surgical (page 99) protocols.
— Devon & Exeter Hospital, 246 Patients 2008-2012 Experience The famous Devon and Exeter Protocol from the UK does not seem to be available online anymore, but the above is their important 2013 study.