method
Ask for a verdict, not a description
The same model, the same page, the same day will tell you different things depending on the shape of the question.
"Describe this site" produced an accurate, fluent summary and zero corrections. "Grade this site" found a real factual error. A verdict requires checking; a description does not.
Run both. The description tells you what your page communicates. The verdict tells you what it gets wrong. And run the adversarial version — find a claim here that does not hold up — because that is the only prompt with a right answer you can check.