I have seen this in another user's profile, and now I'm interested to find my rank of when I received the
java tag on SO. Is that possible to find this?
88th to win design-patterns Bronze tag
If you just received the specific tag badge, you can visit the appropriate tag badge page and see where you are relative to the total amount awarded. The list will be ordered in reverse chronological order. For example, the
java bronze tag badge on SO has been awarded 6,682 times at the time of posting:
If you're somewhere on that first page, it should be easy enough to identify your rank.
If, however, you want to know your rank in general, you'll have to resort to a query on SEDE. This query ranks the users from those who achieved the bronze
java tag badge first (rank 1) to last. Based on the time you earned the bronze
java tag badge, it was straight forward to identify your rank:
You were 6,465th to earn this badge.
Note that, at the time of writing, only 6,668 badges have been logged on SEDE; it's short about 20 badges from the live site. SEDE may be a week behind as it's only updated once a week.