In most cases, you can go to the school to learn about it on the spot, and you can know what the school looks like with more reference and comparison.

This is for local schools. If you are not local, or not local, how can you refer to other schools? I think, from the Internet, we can make a comprehensive comparison from their websites:

The first is work, which largely reflects the overall strength of teachers.

The second is the teacher, how about the skills of the teacher and what the skills will be conveyed to the students.

The third is teaching. The scale of teaching can reflect the overall strength of this school.

The fourth is planning. The teaching plan of the school reflects the teacher's sense of responsibility to the students.