Public data first
Official APIs / official URLs / fetched dates
No scraping dependency
Official APIs / official URLs / fetched dates
No scraping dependency
Pricing expires after 30 days; overview/features after 90
Official source, date and exact field value. Separate from API sync and URL reachability
Comparison with the previous listing text
No listing change does not prove official price stability
Support / automation / RAG / dev tools
Name order; no review aggregate
affiliate_click / sponsored rel
No affiliate score boost
build / data contract / sitemap / llms
No article structure comeback