What looksmax often does now is IP ban you so you can't even lurk, quite insane, they give you a "520" error.
The way to get around this, is to simply clear your cookies. You will then be able to browse looksmax, although the annoying thing is you can only do it short term, before this error pops up again. Then you will need to clear cookies again. If you only need to do a quick lurking though, this should suffice. If you intend to lurk for a decent amount of time, find some sort of VPN. You might not be able to make an account, but you should still be able to lurk all you want without this message popping up.
The way to get around this, is to simply clear your cookies. You will then be able to browse looksmax, although the annoying thing is you can only do it short term, before this error pops up again. Then you will need to clear cookies again. If you only need to do a quick lurking though, this should suffice. If you intend to lurk for a decent amount of time, find some sort of VPN. You might not be able to make an account, but you should still be able to lurk all you want without this message popping up.