BEIJING -- China's e-commerce logistics index hit a seven-year high in November, according to the results of a survey released by the China Logistics and Purchasing Federation and e-commerce giant JD.com on Sunday.

The e-commerce logistics index, an indicator of logistics operations, came in at 115.5 points last month, up 0.5 points month-on-month, according to the survey.

Though this year's "Double Eleven" sales promotions kicked off a month earlier, the e-commerce logistics index for November still managed to set a seven-year record, the federation said.

The sub-index for total business volume increased 0.4 points month-on-month to 134.1, indicating rising demand in the sector.

Rural e-commerce demand was also robust last month, with the sub-index for rural business volume increasing 2.3 points to 134.5.

The survey also showed that China's e-commerce logistics enterprises made progress in supply efficiency during the "Double Eleven" shopping festival, with all related sub-indices posting steady improvements.

Logistics are no longer a bottleneck restricting e-commerce consumption. Instead, they have boosted the development of the e-commerce sector with diversified services and efficient operations, the federation said.