Search engines don't always use the description you write, but when they do, it's often the deciding factor between a click and a scroll-past.
Make a Real Promise
State the specific value the page delivers in one clear sentence instead of a vague summary of the topic.
Stay Within a Practical Length
Descriptions that run long get truncated mid-sentence, so aim for roughly 150-160 characters so your point lands before it's cut off.
Never Duplicate Across Pages
Reusing the same description on multiple pages reads as a templated, low-effort site; write one per page even if it takes longer.
Next step: Use the Meta Tags Analyzer to check what's currently live on a page before rewriting it.