Meta descriptions carry zero direct ranking weight in Google's algorithm, but dismissing them as unimportant misses their actual SEO value. They function as ad copy for your organic listing. When your snippet shows in search results, the meta description often appears below the title tag, and a compelling one can push your CTR from 2% to 8% or higher depending on position and query intent. Google uses engagement signals, and consistent CTR improvement on a URL tends to correlate with better sustained rankings over time. Google rewrites meta descriptions roughly 60-70% of the time, pulling text from the page that better matches the specific query. This doesn't make writing them pointless. When Google does use your meta description, you control the message. For branded searches, navigational queries, or tightly focused pages, your written description usually appears. For broad informational queries, expect rewrites. Write meta descriptions between 140-160 characters to avoid truncation on desktop and mobile. Front-load the value proposition or answer in the first 120 characters since mobile cuts off earlier. Include the primary keyword naturally, as Google bolds query terms in the snippet, drawing the eye. Avoid duplicate meta descriptions across pages, treating each one like a unique micro-pitch for that specific URL. At Ottawa SEO, we write custom meta descriptions for all primary pages, revenue pages, and content hubs. For large sites with thousands of SKUs or blog posts, we template them programmatically with unique elements like product name, category, or publish date to avoid duplication at scale. We track CTR in Search Console and rewrite underperforming descriptions on high-impression URLs, sometimes testing two variations over 60-90 day windows. A meta description won't rescue a page ranking on page three, but it absolutely maximizes the traffic you get from the rankings you already have.