Page publication criteria
A new page must provide a distinct calculation or reference task. Equivalent calculator names redirect to the established route. Pair comparisons require a concrete reason, two sourced variants and mathematical differences. Automated checks flag duplicates, missing sources and orphan pages; editorial judgment remains necessary.
Evidence and attribution
Manufacturer documents take priority for hardware ratings. We identify exact reference variants and label derived values. Missing evidence stays unknown; we do not invent reviews, customer counts, profitability figures or market quotes.
Changes and corrections
A data change should include its source, affected variant and review date. Conflicting documents must be resolved by model and batch rather than averaging specifications. Formula changes require unit tests and an explanation of their effect. Repository maintainers review corrections before updating the reference dataset.
Commercial separation
Reserved advertising areas are separated from calculator actions and results. No advertising network or affiliate programme is connected in this release. An advertisement must never be represented as a calculator recommendation.
Projection language
Results are estimates based on inputs. We do not label hardware as an investment recommendation or promise a future return. Every financial projection assumes unchanged conditions, which is unlikely over long periods.
Reference and trust
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Contact and policies
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