Yes, the attack is continuous. The rate fluctuates a lot, even within a day. It's definitely an anomaly, because eg. from 2025-08-15 to 2025-10-05 I saw zero days with more than 10k requests. Here's a histogram of the past 2 weeks plus today.
2026-01-28 21'460
2026-01-29 27'770
2026-01-30 53'886
2026-01-31 100'114 #
2026-02-01 132'460 #
2026-02-02 73'933
2026-02-03 540'176 #####
2026-02-04 999'464 #########
2026-02-05 134'144 #
2026-02-06 1'432'538 ##############
2026-02-07 3'864'825 ######################################
2026-02-08 3'732'272 #####################################
2026-02-09 2'088'240 ####################
2026-02-10 573'111 #####
2026-02-11 1'804'222 ##################