<…> But still the stats show that there is a lot of engagement for bitcointalk although the number of visitors per month are lesser as compare to the first quarter 2020.<…>
Without going into details, which is not the objective here, I’d take into consideration that there could be a stationary influence (summer time) in June´s reading (can't really tell when we’re only seeing a 6 month window with no historical view).
Additionally, just to state that we are seeing a measure (of some sort) of the number of
visits, not visitors, being the definition they use of visits as follows:
Similarweb calculates a visit (Session) for a website if a visitor accesses one or more pages. Subsequent page views are included in the same visit until the user is inactive for more than 30 minutes. If a user becomes active again after 30 minutes, that counts as a new visit. A new session will also start at midnight.
See:
https://support.similarweb.com/hc/en-us/articles/212999769-Total-VisitsThe only stats related to the site I’d really trust would be those generated from within the site itself. The others are indicators that may show trends providing criteria is stable, but I would not trust their absolute values.