Your lender requires it, so most people buy it once at closing and never look again. That's where the gaps open up. Here's what actually matters, so you can check your own policy with open eyes.
A standard policy has a few parts: dwelling (rebuilding the house itself), personal property (your belongings), liability (if someone's hurt on your property), and loss of use (somewhere to live while it's repaired). It usually does not cover floods or earthquakes — those are separate.
Your coverage should track rebuild cost — what it takes to reconstruct the house — not the home's market value. Those two drift apart over the years (construction costs rise, land value moves separately). A policy that was right when you bought can quietly fall short. It's worth a look every couple of years.
General education, not insurance advice or a recommendation. Coverage terms, requirements, and exclusions vary by policy, insurer, and state. Zowly is a financial calculation and education tool, not an insurer or advisor.