In a word, No. Not too broad. Pet insurance for dogs is great. Best regards.

I assume you are referring to "health" insurance for dogs? Bear in mind the location of your audience. Insurance services and rates for pets can differ greatly based on countries and location.

Are there dog insurance affiliate programs out there that you can join, or how do you plan on monetizing your website and making money with this? ~Jude

Dogs would be to broad - pet insurance is to broad.

But pet insurance for dogs is very targeted - You're good to go.