Glossary

Not measured

What Vessim says when it cannot check something, instead of guessing. No connected source returns delivery dates, and network feeds don't say where things ship from. A requirement that can't be checked is shown as not measured, never quietly dropped. As of October 23, 2026, delivery dates are not measured for any of the 376 products in the Vessim index.

Updated October 26, 2026In the full glossary →

How the search reads a sentence

“a backpack under $25 that ships from the US and arrives this week”

ItembackpackPrice≤ $25Ships fromUSArrivesthis week

Three of these are gates the index can check. The dashed one cannot be measured, so it is shown as not measured rather than dropped. The cheapest that fits is the lowest price that passes every gate.

Why it matters here

At Vessim.

"Arrives this week" is shown as not measured because no connected source returns a delivery date, and pretending otherwise would make the results look better and be worth less.

How it worksThe whole method, from a photo to every price.

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Not measured

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