There is only one page is indexed, and it is the homepage. Yet, it seems that my site is indexed successfully, tested by searching for random excerpts. There is
google / organic entry in my Google Analytics. My property is verified with domain name. There is no robot.txt in my directory. My site map is OK. The search console property for my site is created for about a month ago. My domain has no www or https.
When inspecting a specific URL
http://example.com/articleA, it says it's indexed, not submitted in sitemap. However, the sitemap does contain this URL.