The first of November (traditionally a holiday in most European countries) is a Wednesday this year. Many people take a holiday right before or right after that date. That shows in the October numbers:

Still some records were broken. The bounce rate is getting lower and lower; the number of pages per visit is the highest ever; the duration on the site is longer than ever.

Month Page views Visits Visits/day Unique visitors / month Bounce rate Pages / visit Duration
January 2017 495,083 149,904 4,835 80,187 46.56% 3.30 04:52
February 2017 494,576 158,059 5,645 90,684 48.95% 3.13 04:34
March 2017 602,571 185,773 5,896 100,729 47.25% 3.24 04:56
April 2017 531,263 164,103 5,470 90,516 47.51% 3.24 04:51
May 2017 584,353 177,676 5,731 97,492 46.76% 3.29 05:06
June 2017 560,910 166,798 5,560 90,858 45.42% 3.36 05:28
July 2017 561,996 169,019 5,452 93,048 45.52% 3.33 05:25
August 2017 566,470 168,265 5,428 91,916 45.36% 3.37 05:29
September 2017 504,546 146,449 4,881 80,567 44.33% 3.45 05:29
October 2017 517,447 146,962 4,740 79,669 43.19% 3.52 05:33