Refresh your cornerstone post with current data and examples

Your cornerstone content, given its outsized structural importance to your entire content strategy, warrants a level of ongoing maintenance attention beyond what general content refresh practices provide for the rest of your archive — this is your single most important piece, and letting it drift out of date carries disproportionate strategic cost compared to the same drift occurring in a less central piece of content.

The specific things worth checking during a cornerstone refresh mirror general content refresh practice but deserve more thorough scrutiny given the piece's centrality — statistics and data points cited in the original version, examples that may have become dated or less relevant, and any developments in the underlying topic since original publication that a genuinely comprehensive treatment should now address.

This refresh is also a natural opportunity to verify the cornerstone's connections to its cluster content remain current and complete — confirming links to all supporting cluster articles that have been published since the cornerstone's original creation are properly incorporated, since new cluster content sometimes gets published without the corresponding update to the cornerstone piece that should reference and link to it.

Given the cornerstone's role as the piece most likely to accumulate the site's strongest backlinks and ranking signal over time, keeping it genuinely current protects and extends that accumulated value rather than allowing it to erode as the content gradually falls behind more current competing treatments of the same topic that newer competitors or even your own less prominent content might otherwise begin to outrank.