How does Guildstats and Tibialoot gather data about character's experience points?

Question

I was wandering from where guildstats and tibialoot gather data about character's experience points. These are ideas I came up with, however each of them gives quite inacurrate result or limits characers pool:

1. Experience table (inacuraccy highly grows as character's level is higher)

2. Highscores table (limits characters to 1000 per server)

Neither of available tibia api's that I found returns the exact numer of xp points. Any ideas?

Answer 1

As far as I'm aware GuildStats updates experience values every day at server save, probably to ensure everyone went offline and the values are properly updated in Tibia.com.

I don't know TibiaLoot so I wouldn't know how they do things.

Additionally, it is possible to get more than just 1,000 characters using the highscores tables if you filter vocations.