Hart came under heavy scrutiny before England's ultimately successful World Cup qualifiers against Montenegro and Poland following some high profile mistakes for his club against Bayern Munich.
Cech told Sport magazine: "The problem is that when Joe Hart has a great game, you see all the headlines asking if he is the best keeper in the world. Then Manchester City concede a few goals and suddenly he is not good enough.
"Everybody makes mistakes, but because he is so much under the spotlight - really, the only one for the moment you can pick in your national team - everyone in the country is always watching him.
"Instead of always thinking of him as the best or the worst, people should just be happy that you have a goalkeeper who can play for the national team for the next 10 years."
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