TestedWise / Information
Research standards
How we research and compare.
A useful recommendation should show its working. TestedWise separates published specifications, primary-source research, permitted third-party information, hands-on testing, and verified long-term use.
Our evidence levels
Level 1
Specification research
We compare manufacturer-published specifications, manuals, official support pages, and retailer listing details. We identify which details come from a listing and note when they may change.
Level 2
Permitted third-party information
We use third-party reports or customer-feedback material only when the source's terms and applicable permissions allow it. We do not reproduce reviews or present anecdotal comments as a representative survey.
Level 3
Independent hands-on testing
We use this label only when the product has actually been obtained and tested by the editorial team under a described method. If we have not tested it, we say so plainly.
Level 4
Long-term usage research
Long-term conclusions require documented use over time or appropriately verified user-submitted experiences. We do not infer durability from a short-term impression or a handful of unverified comments.
How comparisons are built
- Define the decision. We identify the reader, use case, budget, and constraints the guide is meant to address.
- Choose relevant options. We compare products or services that solve a similar problem rather than padding a list.
- Check primary information. We prioritize manufacturer documentation, official support pages, technical specifications, and current service terms.
- Separate claims from evidence. Manufacturer claims are identified as claims. We do not describe a published specification as an independently measured result.
- Explain trade-offs. We describe who may benefit, who may not, and what should be verified before purchase.
- Review material changes. We update pages when specifications, availability, software terms, safety guidance, or recommendations materially change.
Marketplace reviews and ratings
Public visibility does not automatically grant permission to copy, scrape, store, display, or systematically analyze a marketplace's customer reviews. In particular, we do not scrape or maintain a private archive of Amazon review text, reviewer identities, review IDs, or star ratings. We use Amazon Product Advertising Content only where an authorized API or other permission allows the specific use and we follow its current storage, display, and attribution requirements.
When a page does not have an authorized basis for customer-review analysis, its conclusions are based on specifications, manuals, and other permitted sources instead. We do not claim to have analyzed thousands of reviews unless a documented, permitted sample supports that exact statement.
Brand relationships and commercial interests
If a product or brand is associated with the site owner, the relationship is disclosed on the relevant page. Such pages are product-information guides or comparisons, not independent third-party reviews. Affiliate commissions do not determine editorial conclusions.
Sources, dates, and limitations
Articles identify important primary sources when available. Prices, availability, compatibility, warranties, and licensing terms can change. Confirm current details with the manufacturer, retailer, or service provider before making a decision.
Corrections
If you find an error or have a source that changes a material conclusion, please send us a correction.