Why does CodeForces switch between http and https?

Revision en1, by WA_TLE_Procastinate_AC, 2019-11-07 18:01:07

Sometimes the url bar shows the connection is not secure while sometimes it shows it's secure (while writing this post it is showing not secure). Taking into account the recent DDOS events, what is the reason behind switching between http and https?

Tags #https, #codeforces

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en1 English WA_TLE_Procastinate_AC 2019-11-07 18:01:07 299 Initial revision (published)