do you have a database?

if so set up a command to update it. so you would have the article number. when the page is called a recordset retrieves the last value and then adds one. the command then updates the record to be the new value. you might want to use sessions though that it doesnt count EVERYTIME the same user views the page for that session. like a refresh of page.

the other way you could do it if your hosting server is stable is use application variables. which would reset if the server ever went down but is the easiest to use.

the other way is via a text file for each page. it reads the text file adds one then writes back to the text file the updated figure. not very practical as plenty text files get created then