Privacy Policy

Basic Policy

KeyLab DB ("we", "our", or "the Site") values the protection of user personal information and complies with applicable privacy laws and regulations.

Amazon Associates Program

This site is a participant in the Amazon Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.jp and Amazon.com.

When users click on Amazon links and subsequently make purchases, this site may receive a commission.

Cookies

This site uses the Amazon Associates Program and Google Analytics, which use cookies to collect visitor information.

  • Amazon Associates: Tracks product link clicks and purchases
  • Google Analytics: Access analysis (visitor count, page views, etc.)
  • Language setting (this site): Remembers the language you chose with the language switcher (preferred_locale, 1 year). Not used for analytics

If you do not wish to use cookies, you can disable them in your browser settings. However, some features may not function properly.

Google Analytics

This site uses Google Analytics for access analysis. Google Analytics uses cookies to collect visitor information.

Information collected:

  • Visitor count, page views
  • Visitor region, language settings
  • Device used (PC, smartphone, etc.)
  • Traffic source (search engines, SNS, etc.)

This information does not identify individuals. For details, see Google's Privacy Policy.

Search Data Logging

To help improve our content and UI, we record on-site search usage (search keywords, filter combinations, and sort order) both via Google Analytics and on our own server.

  • Information recorded: search conditions (keywords, filter combinations, sort order), result count, and an irreversible hash derived from your IP address
  • Information not recorded: raw IP address, user agent, or any personally identifiable information
  • Retention period: 180 days from recording

What is recorded differs depending on whether you select "Accept" or "Decline" in the consent banner. Even if you select "Decline", aggregate records that do not identify you (search conditions, result count, sort order, locale, and timestamp) are still kept (the legal basis is legitimate interest). What is not recorded when you select "Decline" is the hash derived from your IP address (ip_hash) and transmission to Google Analytics.

View History Logging

We record views of switch and keyboard detail pages and blog articles on our own server, for a popularity ranking display, personalized recommendations for logged-in users, and aggregation and analysis of viewing trends by the site operator.

  • Information recorded: the ID of the switch or keyboard viewed, the page context (list, recommendation, related products, blog, or other), locale, and timestamp. If you consent, an anonymous identifier (anon_id), an irreversible hash derived from your IP address, and your account ID (if logged in) are additionally recorded
  • Information recorded for blog articles: the identifier of the article viewed (the slug in its URL), the referrer category (on-site, external site, or direct; the referring URL itself is not recorded), locale, and timestamp. If you consent, an anonymous identifier (anon_id) and an irreversible hash derived from your IP address are additionally recorded. Your account ID is not recorded
  • Information not recorded: raw IP address, or the content of the page itself
  • To determine the page context, when you click a link to a detail page, a temporary value (the source category, the target ID, and the time) is stored in your browser's session storage. It expires after 30 seconds and is deleted on the destination page
  • Retention period: 180 days from recording

What is recorded differs depending on whether you select "Accept" or "Decline" in the consent banner. Even if you select "Decline", aggregate records that do not identify you (viewed item ID, page context, locale, and timestamp) are still kept (the legal basis is legitimate interest). What is not recorded when you select "Decline" is the anonymous identifier (anon_id), the hash of your IP address (ip_hash), and linkage to your logged-in account (account ID).

Access Analytics Data Logging

To understand overall site usage (visit counts, traffic sources, pages viewed, and the volume of automated access) and to improve the service and guard against abusive access, we record access logs on our own server.

  • Information recorded: the path of the page viewed, locale, country (estimated from IP address), the host name of the referring site, utm_source, device type and OS, timestamp, whether the page was displayed in a browser (JavaScript execution) and page transitions within the site, and an irreversible hash computed from your IP address and User-Agent using a random value that changes daily
  • Information not recorded: the raw IP address, the User-Agent string, cookies, or any personally identifiable information
  • The random value used to compute the hash is deleted within 2 days, so it cannot later be used to identify or track an individual or browser
  • Retention period: indefinite (because the data is stored in a form that cannot identify individuals)

This access logging occurs regardless of your choice in the consent banner (the legal basis is legitimate interest).

Personal Information Handling

Personal information collected through contact forms, user registration, etc., is used for the following purposes:

  • Responding to inquiries
  • Service provision (account management, review posting, etc.)
  • Statistics and analysis for service improvement
  • Important notifications

Personal information will not be provided to third parties (except when required by law).

User Authentication

This site uses Supabase (Supabase Inc.) for user authentication. The following information is collected during registration:

  • Email address
  • Username, display name
  • Profile information when using OAuth (Google, GitHub, etc.)

For details, see Supabase's Privacy Policy.

External Links

This site contains links to Amazon, AliExpress, and other retail sites. Please refer to each site for their privacy policies and terms of use. This site assumes no responsibility for the content of external sites.

Disclaimer

While we strive for accuracy in the information on this site, we assume no responsibility for any actions taken by users based on this information.

Product prices, availability, specifications, etc., are current as of the time of posting and may change. Please check retail sites for the latest information.

Contact

For inquiries regarding this privacy policy, please contact us via our contact form.

Operator: KeyLab DB
Email: keylabdb@gmail.com

Policy Amendments

This site may amend this privacy policy in response to changes in laws or business operations. Amendments will be announced on this site.

Effective Date: October 22, 2025
Last Updated: October 22, 2025