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CASTLECS
Service

The External Hub — Attract & Retain More Customers

The External Hub is your business's AI-powered public-facing platform — built, coded, and maintained by AI. It is the digital environment your customers and prospects interact with: your website, your AI receptionist, your content engine, your lead follow-up system, and your presence across every search and AI discovery channel. Unlike a traditional website or a stack of marketing tools, the External Hub is a single integrated platform that continuously attracts, qualifies, and converts — and automatically feeds every customer signal into your Internal Hub and Management Hub.

Is Your Customer Acquisition System Fully AI-Native?

The External Hub Checklist covers all 20 activities that define an AI-native customer acquisition platform — from AI search visibility and GEO optimization to AI receptionist deployment and full-funnel analytics. Most businesses have completed 3 to 5 of them.

Frequently Asked Questions

What is the difference between GEO and traditional SEO?
Traditional SEO optimizes your website to rank in Google's blue-link search results. GEO (Generative Engine Optimization) optimizes your business to be cited and recommended by AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Siri. Both matter, but GEO is the faster-growing channel and the one most businesses have not yet addressed.
Is the AI Receptionist included in the core platform?
The AI Receptionist is an add-on to the External Hub core platform. The core includes GEO/AI search visibility, reputation management, and the AI chat widget. The AI Receptionist — which handles inbound phone calls, books appointments, and answers FAQs by voice — is scoped and priced separately based on your call volume and integration requirements. Ask about it during your AI Platform Assessment Call.
How quickly do reactivation campaigns produce results?
Reactivation campaigns (an External Hub add-on) typically generate booked appointments within the first 48 hours of launch. The campaign targets clients who already know and trust your business — the conversion rate is typically much higher than cold outreach. We recommend running reactivation campaigns on a quarterly cycle as a baseline.
Do I need to create all the content myself?
No. If you add the Content Engine, CastleCS handles content strategy, creation, and distribution. You provide context about your business, services, and any upcoming promotions — we handle the writing, formatting, scheduling, and posting. Most clients spend less than 30 minutes per month on content-related tasks.
Can the External Hub work for a business that already has a receptionist?
Yes — and it typically makes your existing receptionist more effective. The AI Chat Widget handles routine website inquiries and bookings, freeing your human receptionist to focus on complex situations and in-person client experience. If you add the AI Receptionist add-on, it handles routine phone calls as well.

Ready to Talk?

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Pricing

See what this hub costs for your business — setup, monthly retainer, and add-ons.

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Free Tool

AI Visibility Audit

See how ChatGPT, Google AI & Perplexity rank your business — in 60 seconds.

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AI Glossary

New to AI-native terminology? Our glossary explains the key terms.

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Book your free AI Platform Assessment Call. No pitch, no pressure — just a conversation about your business and a custom estimate for your situation.