Supplier ratings tell you less than people assume. A 4.8 average across nine reviews is not a track record — it is a small sample from a self-selected group, and it is the easiest thing on a profile to inflate.
The signals worth reading are the ones that are expensive to fake.
Read the distribution, not the average
A supplier with 4.6 across 200 orders is a substantially better bet than one with 5.0 across six. Volume of completed transactions is hard to manufacture; an average is not.
Look for:
- How many completed orders, not how many reviews. Reviews are optional and skew positive.
- The shape of the distribution. A genuine supplier at scale has some 3s and the occasional 1. A profile with nothing below 5 across a large volume is describing a filter, not a business.
- Recency. Twenty excellent orders two years ago and nothing since is a different signal from twenty over the last quarter. Factories change ownership, lose staff, and move markets.
- Whether ratings decline as order value rises. A supplier who scores well on small orders and poorly on large ones has a capacity ceiling.
What the negative reviews actually say
Read the bad reviews first, and read them for pattern rather than severity.
One angry review about a delayed shipment during a port strike tells you nothing. Four reviews across eighteen months mentioning that the goods differed from the sample tell you something specific and structural.
Sort the complaints into categories:
- Communication failures — slow to respond, went quiet after payment. Predicts pain but not necessarily loss.
- Specification drift — goods differed from sample or spec. The most serious category, because it recurs and it is the hardest to remedy from another continent.
- Timeline slippage — late, but delivered. Often manageable if you build in buffer, and sometimes reflects a supplier who accepts more work than they should.
- Quantity shortfalls — under-shipped. Check whether the supplier resolved it; how a supplier handles a failure is more informative than whether they had one.
A supplier who responds to a negative review with specifics and a remedy is showing you their dispute behaviour before you have a dispute. That is genuinely valuable information.
Verification badges: know what each one proves
Platforms verify different things, and the labels are easy to over-read. Before relying on a badge, know exactly which claim it supports.
Business registration verified means a legal entity exists with the stated name and number. It does not mean they manufacture anything, hold stock, or have ever shipped.
Address or premises verified is stronger, particularly if someone visited. It distinguishes a factory from an office.
Trade history on the platform is the strongest signal available, because it is generated by transactions the platform itself observed rather than by documents the supplier supplied.
Treat verification as a floor, not a recommendation. It rules out the crudest frauds. It does not tell you the goods will be good.
Factory or trading company
This distinction shapes everything downstream — price, flexibility, minimum order, and what happens when something goes wrong — and profiles frequently blur it.
Ask directly, then test the answer:
- "Which processes happen on your premises?" A factory answers specifically. A trading company answers vaguely or describes coordination.
- "Can you show the production line for this product?" Ask for a live video walk-through rather than photographs. Photographs circulate; a live call at short notice is harder to stage.
- "What is your capacity per month for this item?" Real manufacturers know their line rate.
- Product range breadth. A supplier listing cables, kitchenware, and generators is not manufacturing all three.
Trading companies are not a trap. They handle small orders, consolidate across factories, and often communicate far better. But you are paying a margin layer, and they cannot fix a manufacturing problem — they can only relay it. Know which one you have.
Red flags
Prices well below the cluster. If five suppliers quote within 10% of each other and one is 40% lower, the difference is a specification you have not spotted, a material substitution, or a supplier who will take the deposit and renegotiate later.
Pressure to move off-platform. "Message me directly on WhatsApp and I can do better" removes the transaction record, the escrow mechanism, and any dispute process. The discount is real; so is the reason it is offered.
Reluctance to accept staged payment or inspection. A supplier refusing any third-party inspection is refusing to have their work checked. On a first order that should end the conversation.
Inconsistent company details. The name on the profile, the quotation, and the bank account should match. Payment to a third-party account — a "trading arm", a director's personal account, an account in a different country — is the single most common vector for supplier fraud. If the bank details change mid-transaction, stop and verify by voice on a number you already had.
Perfect English and stock photography. Not damning individually, but a profile assembled from generic imagery with no original product photographs is worth a closer look.
Test before you commit
Order a sample and pay for it. A supplier's sample handling predicts their order handling — how fast, how well packed, how accurately specified.
Place a deliberately small first order. Below your real requirement, sized so that total loss is survivable. Treat the cost difference against bulk pricing as the fee for information.
Ask a question with a knowable answer. Something specific about material grade or tolerance. A factory answers immediately; an intermediary goes away and comes back.
Use staged payments and independent inspection on the first order regardless of how good the profile looks. The profile describes the past. The inspection describes your goods.
Building the relationship
Once you have a supplier who performs, the economics shift. Repeat orders get better pricing, better lead times, and priority when capacity is tight — all of which you lose by chasing a marginally cheaper quote elsewhere.
The buyers who do best are not the ones who find the cheapest supplier. They are the ones who find two or three reliable suppliers, keep both relationships warm, and stop paying the cost of starting over.