For agencies

AI website builder for agencies billing client sites by the day, not the month

Boutique agencies, freelance studios, and consultants who want to deliver client sites faster while keeping margins healthy.

The short version

Agency economics are tight. A typical marketing-site engagement bills $25K–$60K, runs 4–8 weeks, and consumes a designer, a content writer, an engineer, and a project manager. Margin compression is real — every week of build time eats the profit. The agencies that win in 2026 compress delivery time without compromising quality.

Website Killer changes the unit economics. Generate the client's v1 in the discovery call. Iterate with the client via chat-edit during weekly reviews. Deliver via source-code export or by transferring the project to the client's domain. End-to-end delivery is days, not weeks — margins double, client sentiment improves, the agency takes on more projects per quarter.

The agency-specific power move: generate the site live during the discovery call. The 10-minute generation turns a 'we'll send a proposal next week' deal into a 'when can we start' deal. Most agencies that adopt this pattern double their close rate inside 90 days.

The job to be done

I bill the client a fixed fee. The faster I ship a site they love, the better my margin. Help me move from a 3-week delivery to a 3-day delivery.

Why other AI builders fall short for this job

  • Traditional CMS builders are great but the build cost still eats your margin
  • WordPress means plugins, security patches, and a slow hand-off
  • Component-only AI tools give you parts, not a deliverable site
  • Custom dev on every project is unsustainable at agency volume
  • Template-builder handovers look templated and hurt your brand

What Website Killer ships for agencies

  • Generate a client v1 in the discovery call — show, don't pitch
  • Source-code export so you hand off a clean codebase
  • White-label-friendly: client deploys their own copy after hand-off
  • Predictable per-month pricing, not per-site fees
  • Reuse your prompts and design tokens across the client book
  • 10 project slots on Business plan (5 on Pro)
  • Chat-edit with the client during weekly review calls

Where this fits

Real-world scenarios

Discovery-call live build

A new prospect joins a 60-min discovery call. You ask the standard discovery questions, then in the last 15 minutes, generate their site live in the chat composer. The 10-minute generation turns a 'send us a proposal' deal into 'when can we start' on the same call.

Fast turnaround for a referred client

A referred client needs a marketing site live in 2 weeks for their fundraising round. Old workflow: 3-week build, scope-creep. New workflow: 3-day build + 3 days of revision + 1 day of QA + delivery. Save 7 days; client refers you again.

Multi-site retainer for an enterprise client

Enterprise client has a portfolio of brands and needs marketing pages for 5 acquired sub-brands. Old workflow: one designer + one engineer per brand, 4 weeks each = 20 weeks. New workflow: generate all 5 in parallel, customize per brand, ship in 4 weeks total.

Client hand-off

Project is done. Client wants ownership. Export the Next.js source code, deploy to the client's Vercel account, walk away. The client owns the artifact end-to-end; the agency moves on to the next project without lingering infrastructure dependency.

Worked examples

Prompts that work

Three prompts you can adapt for your work. The more concrete the prompt, the less editing afterward.

SaaS marketing-site engagement

Marketing site for [client], a developer-tools SaaS (TypeScript form-validation library) at series-A. Hero: 'Validate every form input before it hits your API.' Audience: full-stack TypeScript developers at B2B SaaS. Style: brutalist-dev, code-forward. Pricing: free OSS, $29/mo Pro. Footer: GitHub, npm, docs. Migrate from an existing site (paste URL for structure extraction).

Why this works · Agency prompts often migrate from an existing site. The prompt asks the AI to extract structure from the current URL, then upgrade the design system + copy.

DTC brand client

Site for [client], a coffee-subscription DTC brand. Hero: full-bleed lifestyle photo + tagline. Featured products: 6 SKUs. Lookbook page. Sustainability page. Subscribe CTA routes to Recharge subscriptions on Shopify. Email capture for new-drop alerts (Klaviyo). Style: editorial, image-led, warm.

Why this works · DTC brand prompts include the cart layer + email tool. The agency integrates both as the deliverable.

Sub-brand for an enterprise client

Marketing page for one of 5 sub-brands under [parent company]. Sub-brand: [name] — focuses on [vertical]. Hero with brand-specific tagline. Three feature blocks. Pricing routed to [parent]'s sales-led flow. Footer mentions parent company. Style: matches [parent]'s brand system (warm minimal). Reuse design tokens from previous engagement.

Why this works · Enterprise multi-brand work reuses design tokens across projects. The prompt references prior agency work to keep brand consistency.

Internal links

Related industries

FAQ

Frequently asked questions

Can I deliver sites to clients without giving them a Website Killer login?

Yes. Export the source code and deploy on the client's own infrastructure (Vercel, Netlify, your own VPS). The site is theirs end-to-end — no Website Killer branding, no login, no ongoing dependency.

Does the Business plan support multiple client projects?

Business gives you 10 projects and 10 domain slots. For agencies running more than 10 active client sites at once, reach out to sales@killerwebsite.ai for a custom plan — most multi-client agencies sit at 5–8 active projects after factoring deliveries.

Can I generate a site in the discovery call to show, not pitch?

Yes — this is the agency-specific power move. Run discovery, then generate the client's site in the chat composer during the call. The 10-minute generation turns a 'we'll send a proposal' deal into 'when can we start.'

How do I handle the client hand-off?

Two options. (A) Export the code and host on the client's infrastructure — they own the deliverable, you walk away. (B) Keep the project on your Website Killer account and bill the client monthly for ongoing edits — the agency model most retention-focused shops prefer.

Can I bring my own design system per client?

Right now Website Killer applies one of its 52 tuned design systems per project from your prompt. Override colors/typography/spacing via chat-edit. For strict per-client brand systems, export and customize — the export is clean enough to drop tokens into.

What's the typical agency workflow with Website Killer?

Discovery → live generation in the call → chat-edit iteration with client → deliver via export or domain transfer → invoice. End-to-end delivery is days, not weeks. The unit-economics improvement is real: most agencies report 2x throughput in the first quarter after adoption.

Ship a site this afternoon — agencies edition.

Free forever plan. Custom domains, hosting, and AI generation included.