TL: DR I am convinced that using fixed size canvas mode is the reason I got banned on all of my accounts botting the Blast Furnace. Hey everyone, just wanted to take the time to share with you my experience with bans in the blast furnace. So, as you may know, I've made a blast furnace bot a few months ago. In total, as of today, I've received a total of 4 temporary (2-day) bans. Here's how my botting went. The Background Here's a description of the 4 accounts. Main - 10 years old, ~1.3k total levels, >100 qp, coal bag, ice gloves, goldsmithing gloves Alt1 - 1 year old, barely played on it before, ~200 total levels, no coal bag/ice gloves Alt2 - 1 year old, barely played on it before, used to collect quest data (not botted), botted MLM for coal bag, got ice gloves Alt3 - fresh account, used to collect quest data (not botted), botted MLM for coal bag, got ice gloves. So, about 3 months ago, I start writing my bot and I test it on my main, botting ~ 2hrs/day (with breaks), does not get banned. Not long after, I take Alt1 and start botting on it, making steel bars ~4hrs/day. After a week or 2 that account gets a 2-day ban, main account dodges it. I'm thinking no legit player would smelt steel bars at the blast furnace for ~30 hours without first spending 14 hours at the MLM for a coal bag, I blame the ban on this. I make a second account (Alt2), give it a coal bag and start botting on it 3-4hrs/day. No bans for 2-3 weeks. At that point, my bot is close to being ready for a public release. Since I have quite a few playersensed parameters, I decide I wanna test a whole bunch of configurations before release, so I start botting in ~1hr periods and clearing the playersense data everytime (essentially rolling for a new set of playersense), which changes the behavior of the bot quite a bit everytime I start it again. Also, I had been playing on resizable mode for the last few weeks, so I figured I should test all of that on a fixed mode canvas. After 1 or 2 days of doing that, both my main and my Alt2 get a 2-day ban. I blame it on the palyersense shenanigans and on the VPN I was using the day before (I botted while working, with my work VPN on). After the 2-day ban, I make another account (Alt3), stop botting on my main, but keep botting on Alt2. On both Alt2 and Alt3, I'm being careful, botting 2-3 hrs with breaks, ~ 5 days a week. I'm playing on resizable mode, because I just dislike how small fixed mde canvas is. Fast forward 3-4 weeks, both accounts are still alive. I release a new update for my bot that improves the efficiency and I get quite a lot more usage on the bot. I get reports from a user that he was banned on 2 different accounts within 2-3 hours of botting. The accounts were medium-high quality (first one was his main), he was using his residential IP, the only thing that stands out is that he's using fixed sized mode. To me it made sense that Jagex would use this setting in its botting detection because let's be honest, who the hell would grind the blast furnace on a fixed mode canvas? The experiment So, I decide I wanna put that theory to the test. Alt3 has still never been banned before and all of my accounts never got a permanent ban straight away, so I decide to risk it on that account. Since I had just released a rather big update, I wanna make sure that update isn't the reason why I'd be getting banned, so I bot normaly 2-3 h/day with breaks for a whole week, no ban. This monday (may 17th) I bot 3 hrs on fixed mode, with nothing else different. Tuesday, no ban yet, so I bot again for 2-3 hrs on fixed mode. Wednesday (yesterday) was update day and Runemate wasn't working well, so I didn't bot on that account. I did log on the website to check for bans. No ban. This morning, I check for a ban and lo-and-behold the account got a 2-day ban. It actually got banned yesterday, a few hours after I checked for a ban. Meanwhile, I've kept botting on Alt2 and that one is still alive, even after botting for over a month after getting a 2-day ban. So, on an account that has been botted on for ~50 hours in resizable mode, on a moneymaking method known for its high ban rate, just 5-6 hours of botting on fixed mode was enough to get it banned. Now I know some people have had success botting on fixed mode canvas, but my theory is that the blast furnace is heavily used by bot farms on other clients and all the screenshot I've seen of those are using fixed size mode. My guess is that no legit player plays the blast furnace for long periods of time on fixed mode canvas and that the only ones doing it are the bots. TL: DR#2 : Do not bot the blast furnace in fixed mode canvas, it might also apply to other bots too, but I have no data to back this up. Thanks for listening to my TED talk.