Methodology

How we research and verify data

All product data on this platform is sourced exclusively from verified sources: official provider websites, direct email communications, or manual input by our research team. Every change is documented, versioned, and visible in the change history of each product. No information is published without a cited source.

Our Principles

Source-Based

Every data field is linked to its source – URL, retrieval date and status are visible on the product page. No information without evidence.

Manual Approval

Every detected change goes through a manual admin review before publication. Automation does not replace human oversight.

Full Version History

Every change is logged in the history: date, changed field, old and new value, source. Cannot be deleted.

No Advertising

No affiliate links, no paid placements, no financial relationships with listed providers. Rankings are based on objective criteria only.

Research Workflow

1.Source Management

Admin maintains relevant provider URLs per product.

2.Automated Crawling

Playwright crawler checks all sources daily for changes via SHA-256 hash comparison.

3.AI Analysis

GPT-4o extracts structured data and identifies which fields have changed.

4.Email Analysis

Incoming emails from providers are automatically analyzed for relevant changes.

5.Manual Approval

The research team reviews and approves each change individually.

6.Publication

Approved changes are published and documented in the public change history.

Note: Despite careful and continuously updated research, no liability is accepted for the accuracy, completeness or timeliness of the published data. All information is provided without guarantee. Please verify conditions directly with the provider before making a purchase decision.

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