If you do not have a lot of posts, it may not be a problem for you, but if you"ve sent 100, 200, 1000 posts in the past, it"s a bit harder. However, if you want to save time, you do not need to update all your articles, you need to look at Google Analytics (or any other means you use to monitor what number get traffic or what amount you buy website traffic now and in past and what is exactly your traffic) and see which posts get the most traffic. slow. Using Google Analytics, you can easily get this information as an XLS or PDF document.