How do you validate a startup idea before building anything?

To validate a startup idea before building anything, experienced founders focus on securing real commitment—ideally in the form of cash or deep customer data—using landing pages, prototypes, and targeted outreach.

Pre-Selling and the "Deposit Framework"

The most definitive form of validation is a financial transaction. Founders are encouraged to "get paid before building anything" to ensure there is genuine demand Starter Story — We built $10K/mo saas. Watch this before starting yours @ 03:04.

One effective method is the refundable deposit framework, where you offer a solution to a problem and ask for a one-time, refundable deposit (e.g., $500) to grant full access upon launch Starter Story — We built $10K/mo saas. Watch this before starting yours @ 03:04. Similarly, founders can use a "Kickstarter model," selling lifetime access to a product based solely on a Figma mockup or clickable prototype before a single line of code is written thebrettway — Digital Dropshipping: The New Way to Start A SaaS Business @ 06:08.

Fake Landing Pages and AI Prototypes

Founders often build a "fake" landing page to test messaging and demand. This process involves:
* SEO Research: Identify keywords that buyers are searching for and use them as the headline Starter Story — We built $10K/mo saas. Watch this before starting yours @ 03:04.
* Fake Demos: Use AI tools like 11 Labs or HeyGen to create a product demo for a solution that doesn't exist yet Starter Story — We built $10K/mo saas. Watch this before starting yours @ 03:04.
* Commitment Metrics: Instead of just signups, define success by metrics like "scheduled events" or pre-sale conversions Starter Story — I Built a $20K/Month App in 83 Days @ 06:07.

Data-Driven Validation via Ads

Greg Isenberg recommends running $50 ad campaigns (Google or Bing) not just for sales, but to uncover the specific "inside bombs" or headlines that resonate with a community Greg Isenberg — 4 microSaaS ideas you can build to make $100k/month @ 24:25. By bidding on keywords and seeing which ones lead to clicks or quiz completions, you can understand how people are actually searching for your solution Greg Isenberg — Using Google Ads, Heygen AI, Perplexity to make you $$$ @ 06:04.

Problem Interviews and Shadowing

If you aren't collecting money, you must collect deep customer insights. My First Million suggests "problem interviews" that focus on the severity of a customer's pain rather than your solution My First Million — 3 Ways To Validate You Have A $1,000,000 Business Ideas (#353) @ 06:04. This can go as deep as interning for or shadowing a potential customer to understand their daily crises firsthand My First Million — 3 Ways To Validate You Have A $1,000,000 Business Ideas (#353) @ 03:02.

Where they disagree:
While some founders insist on cash as the only validation Starter Story — We built $10K/mo saas. Watch this before starting yours @ 03:04, others believe that for complex or high-ticket products, deep "pre-commitments" or shadowing can be sufficient to start building, provided you maintain a high "intensity" in talking to users My First Million — 3 Ways To Validate You Have A $1,000,000 Business Ideas (#353) @ 03:02. Y Combinator notes that you can also start with a "quick and dirty" prototype to get easier feedback, as 50% of companies will eventually pivot anyway Y Combinator — How To Start A Dev Tools Company | Startup School @ 06:06.

— Sources: 12 videos across 5 creators