Affiliate site, about 180 review and comparison posts. I refresh the top 30 every quarter, updating prices, swapping out discontinued products, adding a paragraph or two and changing the date.
Some refreshes give a clear bump in 2-3 weeks, others do nothing at all. I can’t find a pattern in which ones respond.
Do you have a rule of thumb for how much needs to change? And does updating the visible date without real changes hurt, in your experience?