Unfortunately Baidu doesn’t index HTTPS page yet. In case you have HTTPS site and the best practice for Baidu SEO will be the following.
Create HTTP version of your HTTPS site
Set user-agent, redirect Baiduspider to HTTP pages
Your HTTP pages will be indexed by Baidu and appear on the SERP of Baidu
Use 301 redirect for all HTTP pages, and redirect the visitors to the respective HTTPS page.
Please note that HTTP version is not only created for the homepage, but also for other important pages, with which internal link is feasible. However internal link between HTTP page and HTTPS page should be forbidden. For example Baidu will only index the HTTP homepage if it has a link pointing to its HTTPS inner page.
If your site is big, try to put all HTTP pages in subdomain. Alipay leaves all the info pages on its subdomains, such as Life, Club, Help and Lab, etc. and keeps all security pages in its main domain. From the SEO point of view, it’s the best way to do at the moment. Though we will keep a close eye on Baidu, and let you know if there is any update.
Kun has 10 years digital marketing experiences in Europe and China. His expertise includes SEO, Social Media, PPC and mobile marketing. He manages the strategy and business development of Jademond Digital. Pior to Jademond, he played provital roles in search marketing agency in Hong Kong, mobile marketing agencies in China and online video portal in Europe.