In the refresh meta tag, if you want your page to refresh less often than every 30 seconds, change the content="30" to something other than 30 - 60 (1 minute), 300 (5 minutes), etc. The expires tag is important because it affects the cache of Web browsers, so that the page is not cached but rather pulled from the server on every load.
Na mkpado meta , ọ bụrụ na ịchọrọ ka ibe gị nweta ume mgbe ọ bụla karịa nkeji iri atọ, gbanwee ọdịnaya = "30" na ihe ọzọ karịa 30: 60 (1 nkeji), 300 (5 nkeji), wdg. dị mkpa n'ihi na ọ na-emetụta cache nke ihe nchọgharị weebụ , nke mere na adighi echebe ihu akwukwọ ma kama wepu ya na ihe nkesa.