Buying an existing online business can be a genuine shortcut past the hardest part of starting one — finding something that already works. But that shortcut only pays off if you can tell the difference between a business that's actually stable and one that just looks stable in a screenshot.
Start with the numbers, not the story
Every listing comes with a narrative — "untapped potential," "barely marketed," "founder just doesn't have time." Set the story aside for a moment and look only at the trailing 12 months of revenue, month by month. A flat or growing trend with a boring explanation is worth more than an exciting story sitting on top of a declining graph.
Reading traffic and revenue honestly
- Check the traffic source mix. A site getting most of its visits from one ad campaign the seller is about to stop paying for isn't the same asset as one with steady organic search traffic.
- Look for customer concentration. If a handful of customers make up most of the revenue, ask what happens to the business if just one of them leaves.
- Separate one-time revenue from recurring revenue. A single large contract that won't repeat can make a monthly number look far healthier than it really is.
Red flags that should slow you down
- Reluctance to share raw analytics or payment processor screenshots, only summarized numbers.
- A sudden, unexplained spike in traffic or revenue right before the listing went up.
- Refusal to do even a short call, insisting everything happen over text or email.
Doing basic due diligence
Before you commit, verify what you can independently: check analytics access directly rather than trusting a screenshot, confirm the domain and any key accounts are actually owned by the seller, and if it's a SaaS product, sign up as a real user and go through the actual product experience yourself.
Making a fair offer
A fair offer accounts for both the business's track record and the real risk you're taking on by not having run it yourself. It's reasonable to offer less than the asking price when a seller can't answer basic questions clearly — that's not lowballing, that's pricing in the uncertainty they've left unresolved.
Frequently asked questions
What's the first thing I should check on any listing?
The month-by-month revenue trend over the last year — it tells you more in thirty seconds than almost anything else on the page.
Is it normal for sellers to ask for a deposit before sharing detailed financials?
Some sellers ask for a signed NDA before sharing sensitive numbers, which is reasonable; be more cautious if they're asking for money before you've verified anything independently.
Should I always get an independent valuation?
For anything beyond a very small purchase, a second opinion on valuation is worth the cost — it's cheap insurance against overpaying based on the seller's own pitch.