SaaS Marketing Site Drives 5× Demo Bookings Month-over-Month for AI Analytics Startup

After a Series-A fundraise, the startup's marketing surface was still a single Webflow landing page thrown together during YC. It converted at 0.3% of traffic to demo bookings — enterprise buyers couldn't evaluate the product because there was zero feature depth, no comparison between tiers, and no social proof beyond two generic testimonials.

The founding team wrote technical content on Medium, but it didn't drive sign-ups because Medium posts don't convert (no in-line CTAs, no gated content, no lead capture). Their target keywords around "AI analytics for customer churn", "LLM-powered cohort analysis", and "automated retention modeling" had no owned landing pages — competitors were eating the organic search traffic.

On the operational side, Webflow form submissions came into a shared Gmail inbox. Nothing synced to HubSpot — leads were manually copied into deals by a junior ops person every Friday, with 15–20% falling through the cracks and no attribution tracking.

We delivered a full enterprise-grade marketing site on Next.js with TanStack Router, a scalable MDX content engine, and deep HubSpot integration:

1. 8 feature deep-dive pages: Each core product capability (Churn Prediction, Cohort Intelligence, LLM Analytics, Automated Reporting, Data Connectors, Team Workspaces, API Access, Security & Compliance) got a 1,000–1,500 word dedicated page with feature diagrams, animated GIFs, use case bullets, and a contextual demo CTA at the bottom.
2. Animated interactive product tour: A Framer-Motion-powered walkthrough where prospective customers click through 6 product screens with live annotations explaining key features. The tour ends on a contextual "book a demo for your use case" CTA.
3. Pricing calculator with seat-count + tier: The pricing page has an interactive slider for seat count (5–500 seats), tier selector (Pro / Enterprise / Platform), and add-ons (API credits, custom connectors, dedicated support) — monthly and annual totals update in real-time with discount callouts.
4. MDX blog with Vercel OG image generation: The blog engine runs on Contentlayer with MDX files. Every blog post gets an auto-generated OG image (Vercel OG) using the post title, category, and brand template — no manual Canva work required. In-line lead capture CTAs are injected into every post at the 60% scroll depth mark.
5. HubSpot Forms API integration + full attribution: Every form (demo, contact, blog content-gated download) submits directly to HubSpot Forms API, creating a Contact and a Deal with source attribution (UTM params, referrer, page landed on, form name, blog post title if applicable) populated automatically. No manual data entry.

• 5× demo bookings in 60 days — going from 12–15 per month on the old Webflow site to 60–75 per month on the new site on roughly the same traffic volume
• Blog drove 39% more organic sign-ups — 12 new blog posts published through the MDX engine are now ranking on page 1 for mid-tail keywords, driving new qualified sign-ups that would previously have gone to competitors
• Google PageSpeed Performance: 86 / 100 — up from 48 on the old Webflow site, with 98/100 on best practices and 100/100 on SEO
• 21% lower bounce rate — visitors who land on the homepage now browse 2.6 pages per session instead of 1.4 because the feature depth and navigation encourage exploration

If we ran this build again, we'd ship a changelog/newsletter page alongside the blog. The team wants one now, and the MDX infrastructure is already there — it would have been a near-zero marginal-cost addition during the initial build. We'd also architect the MDX content pipeline to support i18n from day one, because the startup is now expanding into the EU market and will need German and French versions of the marketing pages without a rebuild.