How to Buy an Online Business: A Practical Guide

I've acquired two online businesses. Here's the playbook I wish someone had handed me before I wired the first cheque — what to look at, what to ignore, and where deals quietly go wrong.

1. Decide what you're actually buying

Most online businesses fall into a few buckets: content sites (ad/affiliate revenue), ecommerce brands (Shopify, Amazon FBA), SaaS, and service businesses (agencies, productized services). They look similar in a listing but operate nothing alike. Pick the model that matches your skills, capital, and tolerance for operational work before you start browsing.

2. Where to find listings

• Marketplaces — Empire Flippers, Flippa, Acquire.com, Motion Invest, FE International. Each has different size brackets and vetting standards.
• Brokers — for deals above ~$500k, a broker filters noise and gives you a real data room.
• Off-market — direct outreach to operators in a niche you understand. Slower, but you skip the bidding war and usually buy cheaper.

3. Valuation, in plain terms

Online businesses trade on a multiple of SDE (Seller's Discretionary Earnings) — annual profit plus the owner's salary and add-backs. Typical ranges:

• Content/affiliate sites: 30–45× monthly SDE (2.5–3.7× annual)
• Ecommerce: 3–5× annual SDE
• SaaS: 3–6× ARR (highly variable on growth and churn)

Multiples are a starting point, not a verdict. A site doing $10k/mo with one traffic source and a flat trend is worth less than one doing $7k/mo growing 20% with diversified channels.

4. Due diligence — the parts that actually matter

Traffic

Get Google Analytics and Search Console access directly — not screenshots. Look for: one-keyword dependence, sudden spikes that coincide with algorithm updates, and the ratio of branded vs non-branded search. A site that lives on one keyword is one update away from zero.

Revenue

Verify earnings against the source: Stripe, Amazon, AdSense, affiliate dashboards. Match 12 months of bank statements to the P&L. Pay attention to seasonality and to revenue that depends on a single partner.

Operations

Ask: what happens the day after I take over? Get the SOPs, the supplier contacts, the contractor list, and the passwords list. Time the seller's actual weekly hours — "10 hours a week" often means 30.

Legal & ownership

Confirm domain ownership, trademarks, content licensing, and that no third-party assets (stock photos, fonts, plugins) are used outside their license. For ecommerce, audit supplier exclusivity and MOQ commitments.

5. Deal structure

Don't pay 100% cash at close on anything material. Structure with an earn-out (10–30% based on revenue holding for 6–12 months) or seller financing. It aligns incentives and gives you recourse if the numbers don't transfer.

6. The first 90 days

Change nothing for the first month. Most acquisitions go sideways because the new owner "improves" something that was quietly load-bearing. Document, observe, then make one change at a time and measure.

7. Where deals quietly go wrong

• The seller was the brand. Personal-brand sites often collapse on handover.
• Traffic concentration on one channel you don't control (Google, one influencer).
• Hidden tech debt — a custom stack only the seller understands.
• Working capital gaps — ecommerce especially. Budget for 2–3 months of inventory cash.

A short note on temperament

Buying is the easy part. Running is the job. If you wouldn't enjoy operating the business for two years, the multiple doesn't matter — you'll sell it badly. Buy what you want to wake up to.

Questions about a specific deal? Get in touch.