Yes, we do offer bulk blacklist checks, but you’d have to register for a free account.
You can easily Bulk Blacklist Check up to 32 IPs at a time on our free package, by adding them to your Blacklist Monitors list.
Considering our platform supports adding IP ranges and adding IP blocks, you can add all 32 IPs at once.
Once they all get blacklist checked, you can view the results and then you can remove them and add other 32 IPs, and so on.
This way you can bulk blacklist check as many IPs as you wish, without any restrictions and for free.