You should absolutely use Google Search Console if you care about organic traffic. It's not optional for serious SEO work. GSC is the direct line between your website and Google's index, showing data no other analytics platform can provide: actual search queries that triggered impressions, click-through rates by position, crawl errors, manual penalties, and indexing coverage issues. The Performance report alone justifies the setup time. You'll see which keywords land you on page one but get zero clicks (opportunity to improve titles), which pages hemorrhage impressions without ranking (content quality problems), and how your average position shifts over time. Google Analytics can't tell you what searches happened before the click. GSC can. Beyond traffic data, the tool flags technical problems that kill rankings. If Google can't crawl a page because of a robots.txt mistake, GSC screams about it. If your mobile usability breaks, you'll know within days instead of watching traffic evaporate for months. The URL Inspection tool lets you see exactly what Googlebot rendered, which is critical when JavaScript or canonicals cause indexing disasters. At Ottawa SEO, we check GSC daily for every domain in the portfolio. It's the first place we look when traffic drops, and it's where we validate that new pages actually entered the index. The data feeds directly into content decisions: if a page ranks position 8 for a term with 5,000 monthly searches, we know optimizing it to position 4 could double traffic. Setup takes ten minutes. Add your property, verify via DNS or HTML file, submit a sitemap, then let it accumulate 28 days of data before drawing conclusions. The 16-month query history is gold for tracking seasonal trends and measuring whether algorithm updates helped or hurt you. Ignore it, and you're flying blind while competitors read the instrument panel.