Just spent 3 hours digging into why a competitor's traffic spiked 40% last month. Turned out they're ranking for a bunch of long-tail keywords I never even considered targeting. Ran their domain through an SEO traffic analyzer and found 200+ keywords where they rank but I don't. The gap is insane. I've been so focused on head terms that I completely ignored the mid-tail stuff that's actually driving their conversions. Now I'm rebuilding my content strategy around those gaps. If you're not checking competitor keywords regularly, you're flying blind. https://serpspur.com/tool/traffic-competitor-explorer/