A conversion funnel (sales funnel, marketing funnel) is a visual model of the full path from first brand exposure to paying customer and beyond to loyal advocate. It's called a "funnel" because at each stage fewer people remain (thousands hear, hundreds engage, tens buy), so the shape is an inverted cone.
Main funnel models
AIDA — the classic (1898): Attention, Interest, Desire, Action. ToFu/MoFu/BoFu — today's digital marketing standard. ToFu — wide audience, brand awareness: SEO blog, social, YouTube. MoFu — engaged audience, evaluation: deep guides, comparison articles, webinars, lead magnets. BoFu — ready to buy: demos, pricing, free trials, testimonials, case studies.
Pirate Funnel (AARRR) — startup model: Acquisition, Activation, Retention, Referral, Revenue. A fit for SaaS.
Stage-by-stage optimization
ToFu — SEO posts, social content, YouTube videos. Goal: deliver value and build brand awareness. Metrics: visitors, impressions, brand mentions. MoFu — deep guides, comparisons ("WooCommerce vs Shopify"), magnets. Metrics: email subscribers, downloads, webinar signups. BoFu — demos, pricing, free trial, testimonials, case studies. Metrics: trial signups, demo requests, purchases.
Common mistakes
Pushing everyone to buy immediately — a blog visitor doesn't trust you yet, "Buy now" misses. First value (content), then interest (magnet), then sale. Optimizing only one stage. Treating the funnel as a "set once" job — it needs A/B testing and iteration. Forgetting return — retaining a customer is 5-10x cheaper than acquiring a new one.
Measurement tools
Google Analytics 4 — free, funnel reports. Mixpanel — product analytics, $25-833/mo. Amplitude — for large businesses, $49-1500/mo. Hotjar/Clarity — heatmaps, session recording. ChartMogul — SaaS metrics.
Sayt.uz practice
Sayt.uz uses the ToFu/MoFu/BoFu model. ToFu: 312 SEO posts, 45,000 monthly organic visits. MoFu: 6 lead magnets, 800-1500 new email subscribers/month, Sayt.uz Pro. BoFu: free demo cabinet, 7-day free domain+hosting trial, pricing page. Conversion rates: visit → subscriber 4.2%, subscriber → first purchase 18%, first purchase → repeat 64% (LTV: 3.8x first-purchase value annually). Tip: draw your funnel — wherever the biggest leak is, start there.