Crawl budget isn't a dial you turn in Search Console. Google determines how many pages it crawls based on your site's authority, update frequency, server response time, and error rate. Sites under 10,000 pages rarely need to worry about it. For larger sites, especially those with faceted navigation, pagination, or user-generated content, wasted crawl on low-value URLs becomes a real problem. Start by identifying what's eating your budget. Check Search Console's Crawl Stats report for patterns—look for spikes in 404s, redirects, or parameter URLs that shouldn't be indexed. Log analysis tools like Screaming Frog Log Analyzer or server logs parsed through Python scripts reveal what Googlebot actually requests versus what you think matters. Then optimize systematically. Block irrelevant sections in robots.txt (search result pages, filters, session IDs). Use canonical tags to consolidate duplicate content. Set noindex on thin pages like tag archives or empty categories. Fix redirect chains and broken links immediately—every 404 or 301 wastes a crawl hit. If you have millions of pages, prioritize fresh or revenue-driving content in your XML sitemap and ensure those pages link prominently from your homepage or category hubs. Server performance matters more than most realize. A site that responds in 200ms gets crawled more aggressively than one lagging at 1.5 seconds. At Ottawa SEO, we've seen crawl rates double after migrating a 50,000-page e-commerce site from shared hosting to a tuned VPS with Redis caching. One mistake: blocking crawl to "save budget" on pages you want indexed. Robots.txt prevents crawling but doesn't prevent indexing if other sites link to those URLs. Use noindex in the HTML instead. Another: obsessing over crawl budget when your real issue is thin content or poor internal linking. Google won't waste resources on pages nobody links to, regardless of your sitemap. Focus on making fewer, better pages before worrying about crawl efficiency.