Yeah, they created a clearnet portal for better accessibility, basically, it is just a proxy to their .onion domain, which can only be accessed through Tor. Perhaps, I personally would have never known of their existence hadn't they decided to step out of the shadows. I haven't seen anyone mentioning this tool on this forum. So, I am not alone.
I would suggest that you
do not use this service for your own addresses though. When they were previously shut down, every address which had been looked up was sent to law enforcement agencies for investigation:
AMLBot also sent all addresses that had used Antinalysis, which were stored in the Crystal blockchain database, to U.K. law enforcement authorities. AMLBot noted that some addresses that had used the Antinalysis tool were previously not linked to the darknet or any illicit activities.
It added: “It can be assumed that criminals used these addresses for illegal actions … These addresses were added to the tracking database and transferred to the most prominent players in the market to [sic] a more effective fight against money laundering.”
In this sense, the said tool should be treated the same as any other blockchain explorer which may or may not collect data about people visiting it. They were using a third-party company's services to gain access to a blockchain surveillance database, but the third-party company decided Antianalysis were doing something illegal and handed over all the information they had to law enforcement. At least, it is clear now that AMLBot is not safe to use since they collect and sell information to whoever asks.
It is also impossible to verify their claims that they delete your search records from their database. If you are absolutely hell bent on looking up one of your addresses, then you should do it via Tor and you should do it in among a whole bunch of other random addresses you don't care about.
It is impossible to verify their claims, but what could their incentives be to keep the record of random bitcoin addresses? Could they sell such information?