How I Blocked Bad Bots in Apache and Saved My Server

For years, my website suffered from relentless web crawlers—those aggressive bots that comb through sites collecting data. While some bots like Googlebot and Bingbot are helpful and necessary for SEO, others like AhrefsBot, SemrushBot, and MJ12bot are infamously resource-hungry. These “bad bots” were hammering my Ubuntu server, causing CPU usage to spike above 100% and crashing my site regularly.

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