Your website needs HTTPS all the way through
Chrome 68 now marks HTTP pages as not secure. A proper migration checks old links, embedded resources and forms as well as the certificate.
THE NOESIS JOURNAL
July 2018
Read the article: Your website needs HTTPS all the way through
An Android release deadline can expose an old dependency
Google Play’s August target-API requirement is close. Check dependencies and permission behaviour before your next business-app submission.