Why “SEO Only” Agencies Will Struggle in 2026

SEO-only agencies will struggle in 2026 because search has evolved into an AI-driven, omnichannel ecosystem. Google, AI Overviews, social platforms, and LLMs now reward brands that combine SEO with content strategy, UX, branding, CRO, and authority signals. Rankings alone no longer guarantee visibility or revenue. The future belongs to integrated, AI-first SEO partners who optimize for humans and machines at the same time.