Sellers control the narrative, but their references provide the truth. This strategic guide reveals how to uncover hidden liabilities by calling the right third parties. Stop guessing and start verifying.
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When browsing listings on platforms like Flippa or Deal Alert AI, the most glaring danger is not the asset itself, but the data surrounding it. Sellers have an inherent incentive to inflate revenue, suppress expenses, and obscure retention issues. While many sellers are honest, the sheer volume of "zombie" sites and vanity metrics in the market means you cannot rely on the seller's word alone. The single most effective tool to cut through this noise is the seller reference check. However, most buyers approach this step incorrectly, asking vague questions that allow evasive answers. They ask, "Was he nice?" instead of "Did the business perform as represented?"
A proper reference check is not about vetting the seller's personality; it is a forensic audit of the business's health through the eyes of third parties who have interacted with the site, the brand, or the operations at scale. This process reveals whether the business is an asset or a liability. It answers questions that bank statements cannot: How responsive is the support? Do the claims in the marketing match the reality of the product? Is the community loyal, or is it churning? If you skip this or do it poorly, you are likely buying a broken machine and spending your first six months fixing leaks rather than growing profits.
The approach must be methodical. You need to identify the right references, not just the easy ones. A seller will likely provide references who are friends, past employees with good memories, or loyal customers who are happy. These are the "low-hanging fruit." To get real intelligence, you need to go deeper. We need to look at vendors, past partners, and even the customer base at large. The following sections break down exactly who to target and how to structure the conversation to get actionable data rather than fluff.
Key Insight: The best reference check is conducted before you sign the Letter of Intent (LOI), or immediately after, while you still have leverage. Once you are in exclusive negotiations or have paid non-refundable fees, the seller's motivation to hide problems increases. Use references to validate the numbers in the data room, not just to "nice meet the seller."
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Not every person in the seller's network is created equal. When you request references, you must categorize them. The first and most common tier is the "Employee Reference." These are people who worked for the business, either full-time or as contractors. They are deep in the operational weeds. They know where the bodies are buried, literally and figuratively. Your goal with them is to verify the stability of the operations. Did the business run smoothly? Were backlogs high? Did the analytics match reality? However, be careful: A current or recent employee might be motivated to speak negatively if they had a conflict, or positively if they want to remain friendly. You need to triangulate their answers with others.
The second tier is the "Vendor or Supplier Reference." This is often overlooked, which is a mistake. If you are buying an e-commerce store, the dropshipper or the fulfillment center knows the truth about order volumes and return rates in a way no dashboard can capture. For SaaS businesses, the developers who built the core code or the service providers (like hosting or API partners) know the tech debt. A vendor who has been dealing with the seller for two years will not lie to you about late payments or instability. They are independent of the employment relationship. If the vendor says, "He pays late but the volume is consistent," that is a vital data point. If they say, "We've had issues with chargebacks," that is a red flag.
The third tier is the "Customer Reference." This is tricky because you cannot just call random customers cold. You need permission. However, if the buyer (that’s you) is willing to do the work, you can pull your own list from the CRM. Call 5 to 10 active customers. Ask them why they stay and if they have faced technical issues. This bypasses the seller's filter entirely. You are hearing directly from the source. It is unstructured, but it is raw truth. If three out of five customers mention the same bug or complaint, you now have a legal and financial conversation to have before closing.
The fourth tier is the "Peer or Investor Reference." If the seller has outside investors, past business partners, or industry peers, they provide a third-party validation of the seller’s character in high-stakes scenarios. This is less about the business ops and more about the person. Did they honor a promise in a previous deal? Do they communicate poorly under pressure? This is relevant for earn-outs and post-closing support. If the seller has a reputation for ghosting after closing, peers will know it. Look for these references on LinkedIn or through trade associations. They are the hardest to find, but the most revealing.
How you ask questions determines what you get. If you ask, "Can you confirm his revenue was $50,000 a month?" most honest people will either hesitate or say, "I don't know the exact numbers, but it seemed consistent." This is useless. You need questions that force storytelling. People struggle to lie about stories. They can lie about facts, but it is harder to lie about an experience. Instead of asking for confirmation of numbers, ask for descriptions of challenges. Ask, "What was the biggest operational pain point you dealt with in the last year?" or "How did the team handle seasonal spikes?" The details in their answer will reveal the friction in the machine.
Consider the psychology of the reference. They are not paid to help you; they are doing you a favor, or they are bound by a professional courtesy. Make their job easy. Do not make them feel like they are under interrogation. Use a conversational tone. However, always record the call (with permission) or take detailed notes. Memory is fallible, and you may need to revisit these answers during due diligence. When a reference says, "It was a bit chaotic in Q4," dig into that. What did "chaotic" mean? Lost orders? Angry emails? Slow shipping? Specificity is gold. Vagueness is a warning sign.
Watch for defensive language. If a reference spends a lot of time qualifying the seller's behavior ("Well, he's usually great, but this one time..."), probe the exception. The "one time" incident is often the pattern. In business, if something gone wrong happened once under high pressure, it will happen again. Your job is not to judge the person; your job is to assess the risk. If the risk is manageable, adjust your purchase price. If the risk is unmanageable, walk away. The reference call is your reality check against the sugar-coated pitch deck.
Critical Warning: Never rely solely on the references the seller provides. A sophisticated seller may provide a "curated" list of friendly contacts who know nothing about the core business. Always attempt to find at least one reference that the seller did not give you. For example, if you are buying a Facebook page, look for community admins or influencers who engaged with the page. If you see no independent verification, assume the data is inflated until proven otherwise.
Tech businesses present unique reference challenges. You cannot just call a user; you need to talk to the developers. In many cases, the codebase is a black box. The seller may claim the site is "fully automated" or "bug-free." You need a technical reference to verify this. If the seller built it with an external developer, call that dev. Ask about the dependency on specific plugins, the scalability of the database, and the clarity of the documentation. A developer who says, "It’s a penguin of a mess but it works," is giving you a valuation adjustment, not a rejection. It means you are buying technical debt. You need to price that debt in.
For SaaS, the churn rate is the metric that kills deals. Sellers often hide churn by showing "logo retention" instead of "net revenue retention." A reference who has been a user for over a year is invaluable here. Ask them about their journey. Did they call support and get an answer? Did they feel misled during the onboarding? Did the product stop updating? These qualitative signals often predict quantitative failure. If the product has stalled in development, the users will feel it first, long before the revenue drop shows up in the financials. The reference check is an early warning system for technical obsolescence.
Also, verify the app store and review status. If you are buying a mobile app or a platform that relies on third parties (like Shopify apps), check the ratings and read the one-star reviews. Call the app store support or the primary developer if available. But mostly, trust the aggregate sentiment of the user base. In tech, reputation is the product. If the references describe a user base that is "tolerating" the product rather than "loving" it, your lifetime value (LTV) assumptions are likely wrong. LTV is the engine of the valuation; if it’s broken, the car is worth scrap metal.
E-commerce is a different beast. Here, the supply chain is the reference point. If you are buying a dropshipping store, the "reference" is the supplier’s feedback. You need to know if the products are in stock, if the shipping times are accurate, and if the quality control holds up. A seller might use a supplier to avoid chargebacks, but a hidden issue could emerge if you switch payment processors or scaling ads. Call the supplier manager. Ask about the historical order volume. If the data room says 1,000 orders a month, but the supplier says 600, you have a discrepancy. One of those numbers is a lie. Usually, the buyer is buying the lie.
For content sites and blogs, the reference check focuses on the audience and the advertisers. Who are the regulars? If you call a reader, ask them how they found the site. If the answer is "I’ve been here for five years," that is retention. If the answer is "I just found it on Twitter today," that is traffic volatility. Advertisers are also key references. Call the ad network support or a direct advertiser partner. Ask about the historical performance of the ads. Are the clicks converting? Are there click fraud issues? Ad networks can be lenient, but they will flag anomalies if you ask specifically. A reference check with an ad provider can save you from buying a site with poisoned traffic.
Content sites also rely on SEO. Call an SEO consultant who has worked with similar sites, not necessarily the seller’s consultant. Ask them to look at the link profile. If the seller says the links are "all natural," but a third-party expert says 30% are from spam farms, the domain could be hit with a penalty at any time. This is a binary risk: it either happens or it doesn’t. If it happens, the value drops to zero. The reference check here is a risk mitigation tool. You need external eyes on the digital footprint.
Key Insight: In e-commerce, the "customer" is often anonymous. You cannot call anonymous customers. Therefore, your reference network must be built from the suppliers and the platforms. The platform (Shopify, WooCommerce) knows your transaction volume. If you have access to a business advisor who works with the same platform, leverage that connection to get a general sense of the seller’s standing in the ecosystem.
To ensure you get consistent, high-quality data, use this standardized checklist for every reference call. Do not deviate from it. Consistency allows you to compare answers across different sources. If everyone says "good communication" but the vendor says "slow payments," you have a contradiction to investigate. This is a rigorous process, but it is the only way to buy with confidence. When you are ready to execute, you can use tools like Empire Flippers which often provide verified deal history, but your own reference calls remain critical for the specific asset.
Not all references will answer directly. Some will be too nice. Some will be too vague. When you hit a wall, do not push aggressively; that breaks rapport. Instead, pivot. If they say, "It was fine," ask, "Compared to your other experiences with sellers in this niche, how did this one measure up?" Relative comparisons are harder to manipulate. If they say it’s "average," that's average. If it's "above average," that's a plus. If it's "below average," you need to know why. Evades are often a subtle way of saying "don't probe, it's complicated." In that case, assume the complication is a liability until proven otherwise. If you cannot get a clear answer, you cannot underwrite the risk.
Red flags are not always dramatic. A red flag can be a reference who is slow to return your calls. If the seller is "great at communication," why is their key partner unresponsive? Maybe the communication was one-way. Maybe the partner was frustrated. Look for inconsistencies across the board. If the employee says the workload was light, but the vendor says orders were spiking, one of them is lying. Or, the operations were so broken that the employee was actually idle while the vendor was drowning. This analysis requires you to step back and look at the puzzle as a whole, not just the pieces. Trust your gut, but back it up with these questions. The reference check is not a box to tick; it is a strategic investigation.
Once you have your data, you must compile it. Do not let the insights evaporate. Create a spreadsheet. List the reference, the key findings, the sentiment, and the risk level. High, Medium, Low. If three out of five references flag a specific issue, that is a confirmed risk. Now, adjust your offer. If the cash flow is inflated by $5,000 a month, the valuation drops by roughly 4x to 5x that amount, depending on the multiple. This is how you make money. You don't win by paying cheaply; you win by paying the right price for the actual asset. The references give you that "actual" picture. They bridge the gap between the listing description and the reality of ownership.
Furthermore, reference checks inform your negotiation strategy. You can use the findings to negotiate warranties and indemnities. If the tech reference points out a major security vulnerability, you negotiate a specific clause covering that fix. If the customer feedback is poor, you negotiate a price reduction to cover marketing costs to rebuild trust. The data becomes leverage. You are no longer a passive buyer; you are an informed partner with knowledge of the asset's true condition. This shifts the power dynamic. The seller realizes you know more than you let on, which often leads to quicker, more reasonable compliance.
Finally, treat this as an ongoing habit. Even after the deal closes, keep in touch with some of these references. The vendor becomes a new supplier. The developer becomes a consultant. The customers become a focus group. The network you build during the reference check is an asset that outlives the purchase. It is a community of insight that you can access whenever you need to make a decision. This is the long game. By prioritizing depth in your due diligence, you protect your capital and position yourself for growth. The extra time spent on these calls is the cheapest insurance you will ever buy. In the world of online business acquisitions, information is power, and references are the primary source of that information. Use them wisely, and you will stand out in a sea of reckless buyers. For more tools and guidance on navigating this landscape, visit Deal Alert AI to streamline your next acquisition.
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