Fetchers claim to be a certain client. They try to send the same headers as the original client. That's better than a simple curl request with a fake user agent, because curl doesn't send the other headers like the original client and therefore its traffic stands out.
		
			
				
	
	
		
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			3 regels
		
	
	
		
			143 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
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