Two-Site Integration, GEO targeting, bots filtering

I run two blogs built mostly with plain HTML + CSS. I’d like them to behave as one cohesive experience for real readers while quietly diverting bad bots, aggressive crawlers, and obvious spammers to a decoy front layer... (Budget: $250 - $750 USD, Jobs: API, Backend Development, Bot Development, CSS, HTML, JavaScript, PHP, Python, Web Development, Web Security)