How often you update depends on your needs. For content that stays useful over time, checking it every few months or twice a year works well. For content about trends or current events, it might need updates more often.
Updating older content can be very useful, especially if it still gets traffic or covers timeless topics. By adding fresh information, better visuals, or more recent examples, you can keep it relevant and even improve its performance.
If the topic is so significant that is still has visitors, e.g. traffic of the article in the blog that is the most visited – I think it deserves more attention.
I update older content regularly to ensure accuracy and relevance. Revisiting content is definitely worth the time investment, as it helps maintain quality, improve SEO, and keep the audience engaged with up-to-date information.
It's usually easier and faster to update existing content than it is to build something new. If content is performing well, it may just need a quick refresh with more recent stats and examples. If content is not performing well, a refresh is an opportunity to test out different titles, hero images, etc.