Meta tags help SEO, but you need to distinguish between the handful that matter and the dozens that don't. Google uses title tags as a direct ranking signal and meta descriptions as click-through magnets that indirectly boost rankings through user engagement. Those two are non-negotiable. Canonical tags prevent duplicate content issues, robots meta controls indexing, and Open Graph tags improve social sharing visibility. Everything else is legacy noise. The meta keywords tag has been worthless since 2009 when Google officially confirmed they ignore it. Meta author, generator, copyright, and distribution tags do nothing for rankings. Viewport and charset meta tags matter for rendering and user experience but carry zero SEO weight. We routinely audit client sites and strip out 8-12 pointless meta tags that just bloat the head section. Title tags should be 50-60 characters with your primary keyword front-loaded. Meta descriptions work best at 140-155 characters and should compel the click, not just describe the page. We see CTR improvements of 15-40% when rewriting vague descriptions into benefit-driven ones, which feeds back into rankings within 4-8 weeks as Google notices the engagement signal. Robots meta deserves special attention. Using noindex,nofollow carelessly can tank your traffic overnight. We've rescued three Ottawa e-commerce sites in the past year where developers accidentally noindexed entire category trees. Always verify in Google Search Console that your indexation count matches expectations. At Ottawa SEO, we prioritize meta tag optimization in month one of any engagement because it's low-effort, high-impact work. Across our 500-domain portfolio, proper meta implementation consistently correlates with 20-35% better organic visibility compared to sites that neglect it. The key is focusing your energy on the five tags that actually move needles: title, description, canonical, robots, and Open Graph. Ignore the rest unless you have a specific technical reason like structured data markup, which sits outside traditional meta tag territory.