The scope publishing by bot

I usually post on my fanpages with a bot programmed by me. I always noticed that the range was quite low and I didn't understand why. Now I have the server where I run the bot in maintenance and by doing the posts manually I have realized that they are having a much higher range.

Is it possible that Facebook limits somehow the scope of the posts if they are made through its API (using bots)?

Yeah, Facebook limits stuff when posts are created via API. I read about it in another forum, because I've experienced the same problem. Now I created different both with browser emulation that logs my account and all is fine again.