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Blackbox SSL certificate expired
critical

Description SSL certificate has expired already
Query 
>>>
	
				
					
					
						round
					
				
			
				
					((
				
			
				
					
					
						last_over_time
					
				
			
				
					(
				
			
				
					
				
			
				
					[10m]) - 
				
			
				
					
					
						time
					
				
			
				
					()) / 86400, 0.1) < 0
Query Explanation

The query takes the most recent probe_ssl_earliest_cert_expiry value from the last 10 minutes, subtracts the current Unix time, converts the difference to days, rounds it, and checks if the result is < 0; the alert triggers when the SSL certificate’s expiration timestamp is already past (i.e., the certificate has expired).

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