What is fmb.la?
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bl.fmb.la, short.fmb.la and nsbl.fmb.la check domains, and bl also takes IPs and name servers.
What the operator says
"only the worst actors are listed" fmb.la, About, read 1 Nov 2026.
What it really measures
bl is a weighted mix of several sources, in three levels:
- Level 1 is a single IP or domain.
- Level 2 is a range of IPs, listed when a provider does not react to listings on its network.
- Level 3 is a whole network, and very few reach it.
short means something different. It only says the domain hosts a link shortener, which is no accusation by itself.
How to get off it
Level 1 clears by itself after 7 days with no abuse. To ask sooner, your IP's reverse DNS must point to a domain you control. Log in to fmb.la, look up the IP, claim the domain with a text record at _fmbla.yourdomain.com, then delist. It should clear within the hour. Getting listed again delays this, so make sure the IP is clean first.
For Levels 2 and 3, only your provider can fix it.
Want a hand getting this delisted? Here is how to write to a list's operator, or ask a person on our free SOS Hotline. Tell us the list and the IP or domain, and we reply within 48 to 72 hours.
A separate job: cleaning your list does not remove a listing. If you also want to know who on your list is safe to send to, clean your first 1,000 free.
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