Black hat generative engine optimization (GEO) leverages LLM-driven spam, fake E-E-A-T, schema manipulation, and SERP poisoning to influence AI overviews and generative search, diverting branded calls and inflating cost per lead. With rapid AI adoption and AI-written content volume surging, spammers exploit synthetic authority signals to mislead both machines and homeowners. Contractors risk brand leakage, eroded review trust, lower lead quality, and rising blended CPL as spam sites resell calls and force higher ad spend. The recommended playbook: strengthen verifiable real-world signals, monitor and defend brand SERPs and paid placements, improve attribution and call tracking, maintain strict technical hygiene, and avoid manipulative tactics.
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