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Yes, you can get to it from FTC.gov:

https://www.ftc.gov/enforcement/cases-proceedings/refunds/eq...

Basically all class action lawsuit websites have sketchy URL's and appearances. This seems to be par for the course and might deter people from signing up which just puts more money back in Equifax's pocket.

Agreed. Possibly Equifax consciously chose a "scammy-sounding" domain to deter individuals from filing a claim.

This is what every class action lawsuit is like.

No, they didn't choose the domain at all. It doesn't belong to them; it belongs to the people managing the settlement.