A sudden drop in website visitors can happen for several reasons. Sometimes search engines change how they rank sites, which can push your pages lower in results. It can also happen if you changed your website design or removed important links. Technical issues like slow loading or broken pages can also cause people to leave quickly. Check if you've made any updates or if your tracking code stopped working. Competitors might also have improved their content, attracting your audience. Reviewing your analytics can show where the drop started so you can fix it before it gets worse.