In this piece · 6 sections
Due diligence is a discounting machine
The mistake is to treat due diligence as a box-ticking ritual you perform after you have decided to buy. Done right, it is the opposite: a machine that takes the seller's optimistic story and converts each claim into one of three states — verified, discounted, or excluded. Anything that cannot be verified does not get the benefit of the doubt; it gets priced as risk.
That framing matters because sellers are not lying, mostly — they are presenting the most flattering true version of their asset. The buyer's job is to find where the flattery lives and adjust the price for it. A claim you cannot confirm is not neutral; it is a reason to lower your offer or widen the range you are willing to pay inside.
Pillar one: traffic
Traffic is the foundation, so it is where sellers most often present a flattering slice. Read the analytics directly rather than a screenshot, look at the trend over a long window instead of the best month, and confirm the traffic is human and from durable sources. A spike from a single viral moment is not a baseline, and a downward trend dressed up by a good recent month is a trap.
The trend matters more than the level. A site at a steady level is worth more than a higher site sliding downhill, because you are buying the future, not the screenshot. We treat over-reliance on one source as its own problem in traffic concentration and website value.
Pillar two: revenue
Revenue claims are verifiable in a way traffic estimates sometimes are not, so verify them hard. Cross-check platform dashboards against actual bank deposits, confirm the revenue is recurring rather than a one-time event, and scrutinize the expense side as closely as the income side — add-backs should be genuine one-offs, not the seller quietly hiding ongoing costs to inflate the profit.
The number that matters is the earnings a new owner would actually keep, not the gross or a generously-adjusted figure. The gap between stated and defensible earnings is where a lot of overpayment hides, which is the whole subject of SDE vs EBITDA for websites.
Pillar three: concentration
Concentration is the silent killer, because a property can look healthy in aggregate while resting on a single fragile pillar. One keyword, one referring page, one affiliate program, or one customer can carry the whole asset — and the day it moves, the income moves with it.
Every concentration you find is a reason to widen your valuation band downward, because it raises the chance the income is not durable. This is the same logic that makes platform dependence a systematic risk rather than a footnote.
Pillar four: clean history
The last pillar is the property's past. A domain or site carries its history with it — prior owners, prior content, backlink profile, and any penalties or policy strikes. Clean history is an asset; a spammy or penalized past is a liability you inherit silently if you skip this step. Check the backlink profile for toxicity, review the archived history for prior use that could embarrass or penalize the property, and confirm there are no lurking platform sanctions.
Reading the archived record before you buy a name is its own discipline — we walk through it in reading Wayback history before buying a domain. The principle is the same as the rest: a history you cannot verify as clean should be treated as potentially dirty, and priced accordingly.
Turning the checklist into a price
Run all four pillars and you end up with a property whose claims are sorted into verified, discounted, and excluded. The verified facts anchor your valuation; the discounts and exclusions widen the band downward. The output is not a single confident price — it is a range whose width honestly reflects how much you were able to confirm.
That is precisely how our engine behaves: unverifiable inputs lower the confidence score and widen the range rather than being assumed away. Pair the checklist above with an independent range and your offer is built on what you proved, not on what you were told. The broader acquisition framing lives in how to invest in websites.
