Which dog breeds are blacklisted by insurance companies?

Which dog breeds are blacklisted by insurance companies for home and renters insurance public liability $10M to $20M $300 to $800 per year and pet insurance $30 to $80 per month, includes Pit Bull Terrier, American Staffordshire Terrier, Rottweiler, German Shepherd, Doberman Pinscher, Presa Canario, Akita and Wolf hybrid, with some insurers refusing cover or charging 20% to 50% higher premium $360 to $1,200 per year versus $300 to $800. Blacklisted breeds, also called restricted breeds, for home insurance public liability $20M included in building $1,200 to $1,800 per year for $500K building and contents $300 to $800 per year for $30K to $80K, include Pit Bull Terrier, American Pit Bull, American Staffordshire Terrier, Rottweiler, German Shepherd, Doberman Pinscher, Presa Canario, Cane Corso, Akita, Chow Chow and Wolf hybrid, as these breeds have higher bite claims $20K to $50K per claim and statistically higher liability risk, with insurers like some US insurers refusing to cover or charging 50% higher premium $450 to $1,200 versus $300 to $800 for non-blacklisted. For example, home insurance with Pit Bull may be refused or charged $500 extra per year $800 total versus $300 for Labrador, or require exclusion for dog liability, so if Pit Bull bites visitor $20K medical, you pay $20K out of pocket. In Australia, breed blacklisting less common than US, with most home insurers like NRMA, Allianz, Budget Direct not blacklisting specific breeds but assessing individual dog behaviour and bite history, though some may charge extra for large breeds over 40kg. For pet insurance $30 to $80 per month, no breed blacklisted but brachycephalic Bulldog $80 to $150 per month higher due to health claims $1,200 per year versus $300 for Australian Cattle Dog, not liability.