How to Verify Website Revenue Before Buying: A Buyer’s Checklist

The asking price of a website is built on one number: its profit. If the revenue behind that profit is overstated, you overpay, sometimes by several times. Verifying website revenue before buying is the single most important step of due diligence. This guide explains what proof to ask for, how to check it at the source, how to rebuild a simple profit and loss statement, and which red flags should make you walk away.

Why screenshots are not proof of revenue

Many sellers share screenshots of earnings dashboards. Screenshots are a starting point, not verification. They can be edited, cropped to hide refunds or chargebacks, or taken from a different account. A screenshot also says nothing about costs, so even a genuine revenue figure does not prove profit.

Real verification means seeing revenue at its source, in a way that is hard to fake, and matching it with the money that actually reached the seller’s bank account. The more of the revenue you can trace this way, the more confident you can be in the valuation.

Proof of revenue by monetization model

Revenue source	Best proof to request	What to check
Display advertising	Live access or a screen-share of the ad network dashboard	Monthly earnings for 12 months, pageviews, revenue per thousand visits, the site URL inside the account
Affiliate programs	Screen-share of each affiliate dashboard, plus payment history	Commissions by month, reversals and cancellations, which pages generate clicks, program terms
E-commerce sales	Store admin and payment processor reports	Gross sales, refunds, chargebacks, cost of goods, shipping, fees
Subscriptions or SaaS	Billing platform dashboard	Recurring revenue, churn, failed payments, active subscribers
Sponsored posts or services	Invoices and matching bank deposits	Repeat clients, dependence on one client, whether the income transfers with the site

The verification process, step by step

Step 1: ask for a 12-month profit and loss statement

Request a simple monthly table with revenue by source and every expense: hosting, software, content, freelancers, advertising, payment fees and the cost of goods. Twelve months shows seasonality and trend. Twenty-four months is even better for older sites. If the seller cannot produce this, that is already useful information.

Step 2: see revenue live, at the source

Ask the seller to share their screen and log in to each revenue account while you watch, or to grant temporary read-only access where the platform allows it. During the session, ask them to:

show the account settings that prove the site’s domain is attached to the account;
change the date range to cover the full 12 months;
open the payment history, not just the earnings estimate;
filter by the site, if the account covers several sites.

Recording the session, with permission, gives you a reference for later.

Step 3: match revenue to bank deposits

Earnings reports can show money that was never paid because of reversals, invalid traffic deductions or minimum payout thresholds. Ask for bank or payment account statements that show the deposits from each revenue source, with unrelated lines hidden. The totals should roughly match the dashboards, allowing for payment delays.

Step 4: rebuild the profit yourself

Do not accept the seller’s profit figure without rebuilding it. Use this simple structure:

Line	Example month
Ad revenue	$1,450
Affiliate revenue (after reversals)	$900
Total revenue	$2,350
Hosting and software	−$120
Content (writers, editing)	−$400
Owner time replaced by a freelancer, if you will need one	−$300
Net profit	$1,530

The numbers above are an illustration. Note the last expense line: many sellers do not count their own time. If the site needs 15 hours a week and you will pay someone to do that work, it is a real cost for you, and it changes the price you should pay.

Step 5: test revenue concentration

Find out how much of the revenue comes from the top source, the top page and the top product. A site where one affiliate program produces 80 percent of income is fragile: if that program changes its commission rates or closes, profit can disappear overnight. Likewise, if one article drives most of the earnings, losing its ranking would hurt badly. Concentration does not kill a deal, but it should lower the multiple you pay.

Step 6: confirm the revenue will transfer

Some revenue cannot move with the website. An affiliate account may be personal and not transferable, so you would need to apply again and might be refused. A sponsorship deal may depend on the seller’s personal relationship with a brand. A service business may rely on the owner’s own skills. List every revenue source and ask: will this still exist the day after the transfer?

Red flags when verifying website revenue

The seller refuses any live verification and only sends screenshots or PDFs.
Revenue jumped sharply in the last two or three months before the sale, with no clear explanation.
Revenue and traffic do not move together. If income doubled while traffic stayed flat, ask why.
Several sites share one account and the seller cannot filter revenue by site.
Expenses are missing, such as content, freelancers or advertising that obviously exist.
Revenue depends on paid traffic that is not shown in the profit and loss statement.
Refunds and chargebacks are high for e-commerce or digital products.
The seller pushes for a fast close before you finish checking.

Questions to ask the seller about revenue

Can you show each revenue account live, with the site attached?
Which revenue sources are transferable, and which require a new application?
What were the three best and three worst months, and why?
Have any affiliate programs changed commissions or terms in the last year?
Do you spend anything on advertising, and is it in the statement?
How many hours a week do you spend, and on which tasks?
Are there any invoices, refunds or disputes still open?

For a full list, read our guide on questions to ask before buying a website.

How revenue verification changes the price

Verified, stable and diversified revenue supports a higher multiple. Unverified, concentrated or recently spiked revenue supports a lower one, or a deal structure that protects you, such as part of the price paid later if revenue holds. A simple way to think about it: you pay a full multiple only on the profit you could verify, and you pay little or nothing for profit you could not.

Situation	Effect on what you should pay
12+ months verified at the source, stable	Full market multiple is reasonable
Verified, but one source over 70% of revenue	Lower multiple for concentration risk
Recent spike in the last 3 months	Value on the 12-month average, not the last month
Partly verified only	Pay for the verified part; negotiate the rest
No live verification allowed	Walk away, or treat as a pre-revenue asset

Once you have a verified profit figure, you can test the asking price with the SitExit valuation calculator, which shows the multiple and how it is adjusted.

Protecting yourself at closing

Even after careful checks, structure the deal so money only moves when the assets do. Use a third-party escrow service agreed by both sides: you pay into escrow, the seller transfers the assets, and the funds are released once you confirm everything works. For larger deals, consider part of the price paid after a few months, linked to revenue staying within an agreed range. Our website ownership transfer checklist lists every asset to receive before you release payment.

Frequently asked questions

Is a screen-share enough to verify revenue?

A live screen-share where the seller logs in, shows the account settings and changes date ranges is much stronger than screenshots. Combine it with bank deposits for the best level of proof.

How many months of revenue should I verify?

At least 12 months, so you see seasonality and the trend. For older or larger sites, ask for 24 months.

What if the seller uses the same affiliate account for several sites?

Ask them to filter by tracking ID, sub-ID or page URL. If the revenue cannot be separated, you cannot verify it, and you should not pay for it.

Should I trust revenue from a brand new affiliate program?

Be cautious. Short track records are easy to inflate and harder to judge. Value the site on its longer history.

Key takeaways

Verify revenue at the source, live, and match it to bank deposits.
Rebuild the profit yourself, including the owner’s time.
Check concentration and whether each revenue source will transfer.
Pay a full multiple only on profit you could verify.

Every listing on SitExit says exactly what has been verified. Browse websites for sale or create a deal alert for your budget.