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Method & coverage

Trust the record, not the banner.

Wasitever measures exact retailer offers over time. Every verdict is bounded by what we actually witnessed, and every important limit stays visible beside the result.

Public records
17,280
Witnessed price-days
1,336,066
Measured records
419
Deep records
254

Latest coverage is partial · evidence through

The pipeline

From listing to verdict

A tool page is the end of a traceable measurement process, not a rewritten retailer card.

  1. 01

    Identify the exact offer

    Product, configuration, retailer listing, retailer, and channel form one identity. A bare tool, kit, and bundle never share a price record.

  2. 02

    Witness the offer

    Price and availability observations are stored with their source batch and exact time. Failed or incomplete coverage cannot prove absence.

  3. 03

    Build the record

    Price-days accumulate. Gaps remain gaps. Retailer reference-price claims stay separate from prices Wasitever actually witnessed.

  4. 04

    Publish only what it earns

    The canonical algorithm applies one maturity and verdict policy. Qualifying events enter an append-only journal before any publication surface can use them.

Evidence model

Three classes. Different jobs.

All three can be real evidence; they do not carry the same analytical weight.

Class APoint observation

Retained observations

Complete point observations retained from the archive. They count as witnessed price-days and participate in the longitudinal record.

Class CPoint observation

Current longitudinal observations

New point observations accruing through the active collection pipeline. They carry source-batch and coverage receipts.

Class BLabeled mark

Dated summary facts

A durable witnessed high or low with a date. It appears as a detached mark, never a continuous curve, and never counts as a price-day.

Claim permissions

The maturity ladder

More ambitious language requires more evidence. Pages cannot promote themselves into a stronger claim.

  1. M0

    Building

    Fewer than 7 price-days or less than a 14-day span

    Shows observations and coverage. Publishes no price verdict.
  2. M1

    Measured

    7–29 price-days spanning at least 14 days

    May compare today’s exact offer with its witnessed 90-day reference.
  3. M2

    Deep record

    At least 30 price-days

    May describe empirical position, including lowest-decile claims.
  4. M3

    Long horizon

    A continuous 12-month record

    May support claims that explicitly require year-scale evidence.

Live scope

Coverage is part of the answer

Today’s limits are stated directly. New retailers and brands will enter as parallel scopes under the same evidence contract.

Covered brands
2
Retailers with public records
5
Expected sources
0/6 complete
Public exact-offer records
36,721
Events today
40
Point record since
Aug 15 2026

A verdict is valid only inside its stated exact-offer, retailer, channel, and observed-time scope. One retailer’s record does not establish another retailer’s history.

Corrections

Errors stay visible.

When a published fact is wrong, its page states the old value, corrected value, date, and cause. Evidence and canonical deal events are append-only; a correction supersedes a bad publication instead of silently rewriting history.

Reproducibility

Every build carries receipts.

Pages identify the evidence timestamp, export manifest, algorithm version, and build. Two builds from the same accepted snapshot must produce byte-identical output.

Placement policy

Evidence determines placement.

No one can pay for a verdict or position. Qualifying offers are ordered by the canonical evidence ranking.

  • A card shows a deal whose witnessed gap clears our materiality threshold at least twice; smaller gaps stand in the list below the cards, and every deal keeps its lane in the ledger.
  • Deals are ordered by the materiality of the witnessed gap, weighted down by how much of the same ninety days the price has already spent at or below today’s; the longer a cut holds, the more it is simply the price. The weight applies to every record that carries a verdict, at every retailer alike. A card is the cheapest listing we witnessed for its product across the retailers we track; a deal another retailer beats is kept in the ledger with the cheaper listing named. Prices are as listed — shipping and tax vary by retailer and are not compared.
  • Retailers are compared by witnessed offer facts, never commercial preference.
  • Some outbound links may earn a commission; the ranking and verdict systems receive no affiliate input.
  • No countdowns, ever — urgency here is only ever a fact from the record.

Site measurement

Measurement stays disclosed.

Cloudflare Web Analytics records aggregate page views, paths, and referrers without cookies. Google Analytics 4, loaded through Cloudflare Zaraz, reports visits from Cloudflare's edge rather than from your browser; Google processes that data on our behalf.

  • It sets no analytics cookie today, so we cannot tell a return visit from a first one.
  • Signing in to manage alerts sets a session cookie that keeps you signed in.
  • You may also sign in through Apple or Google; the provider then confirms the email address on that account to us and learns that you signed in to Wasitever, nothing else is shared, and no Apple or Google script loads on this site. Google is offered today; Apple is not yet.
  • We run no session recording or heatmaps, and no alert email carries a tracking pixel.
  • None of it reaches a verdict — the ranking and verdict systems receive no analytics input.