inspector

Imagine a country where children do nothing but play until they start compulsory schooling at age seven. Then, without exception, they attend comprehensives until the age of 16.[…]There are no inspectors, no exams until the age of 18, no school league tables, no private tuition industry, no school uniforms.[…]

Chrome has a built-in development tool called the Chrome Inspector. You can use it to examine the HTML elements in a web page; review what resources — or files, cookies, and databases — are active; follow network activity; […]