This site contains affiliate links. In line with FTC 16 CFR Part 255 and Japan’s Consumer Affairs Agency stealth-marketing regulation (effective October 2023), every article that recommends a third-party product or service carries a clear advertising disclosure at the top. Last revised: August 18, 2026.
Current notice: As of June 2026 we have temporarily disabled the display of affiliate links (including Amazon Associates links) across the site while we review our editorial approach. The articles themselves — statistics and commentary — remain published. We will update this page when affiliate links are re-enabled.
Affiliate Programs We Participate In
- Amazon Associates Japan (Amazon Japan G.K.)
If you purchase a product or service through an affiliate link in our articles, the Site may earn a commission under the terms of each program. Any commissions received go toward the operating costs of the Site and the research behind future rankings.
Editorial Independence
Affiliate compensation does not influence the order of any ranking, the assessments inside an article, or the selection of recommended products. Rankings are derived from public datasets; recommended products are chosen by the editorial team to be consistent with the ranking’s topic.
How Ads Are Marked
- Affiliate links carry
rel="nofollow sponsored"attributes - Articles that include product recommendations open with an explicit advertising notice
Questions about this disclosure or about how the Site handles your information can be sent through the Contact page.