Privacy policy
Operator and scope
This policy applies to the VALUFOUR website, a project operated by an individual. The VALUFOUR operator handles privacy matters and complaints at contact@valufour.com.
Analytics and access logs
Google Analytics 4 is used on www.valufour.com to understand site usage and improve the service. Google may process pages visited, referral sources, visit times, device/browser information, approximate location, events and cookie identifiers. Our application code does not send portfolio quantities, average purchase prices or holding details as GA4 events.
Google states that GA4 does not log or store IP addresses, although network information may be used while handling a connection. The operator-exclusion setting uses separate browser storage and a cookie; it does not block all third-party scripts. The operator-exclusion cookie lasts up to one year; the localStorage setting remains until deleted. Clearing site data may remove the exclusion setting.
Hosting and security providers may process IP addresses, requested URLs, timestamps, browser information and response status for page delivery and fault or abuse prevention. Google and hosting infrastructure may process data outside your country. GA4 user- and event-level retention follows the operating property settings and differs from aggregated reporting. Access-log retention follows the settings and policies of the service concerned.
User- and event-level GA4 data subject to retention is deleted through Google’s monthly automatic deletion process after the configured period expires. Standard aggregated reports are outside the scope of that retention setting. VALUFOUR has no function that copies this data into a separate member database or personal-data repository.
The site application does not implement a per-user access-log database, external Logpush exports or a separate long-term log archive. Hosting execution logs, security events and HTTP analytics are distinct provider-managed functions; this policy does not mean that all are enabled or share one retention period.
Portfolio inputs and storage
There is no registration, commenting or per-user server portfolio storage. Holdings, quantities, average prices, exchange rates and scenarios are stored in sessionStorage. Selecting “Save on this device” also uses localStorage. Other people with access to the same browser or device may be able to view that information.
Some custom calculators send valuation assumptions such as revenue, margin and a manual multiple to a server calculation API. Those requests do not include portfolio quantities or average purchase prices. The current calculation API does not store per-user portfolios.
Cookies and browser storage
A language-preference cookie lasts up to one year. A cookie and localStorage also support operator analytics exclusion. Analytics, advertising and consent services may use additional cookies or similar technologies. Browser storage retains language-navigation position and calculator/portfolio state. We do not store an acknowledgement of the usage notice or disclaimer.
sessionStorage normally lasts for the tab or session, while localStorage remains until removed. Browser session-restoration features may restore data. Use portfolio slot deletion, composition clearing or the browser’s site-data controls. Deleting browser data may permanently remove inputs. Turning off “Save on this device” removes the localStorage copy but keeps the current tab’s session storage.
Sharing and contact
Share images are generated in the browser and may include purchase cost, assumed profit, tickers, scenarios and weights. Quantities and average prices are not shown. Shared links open the public portfolio page and do not encode holdings for restoration.
Saving or sharing an image passes it to the device or external app you choose. When an inquiry email is actually received, the operator handles the reply address and information voluntarily provided in a mailbox to review, respond to and resolve the inquiry. Send retention or deletion requests to the same address. The site has no contact-submission form or user inquiry database.
Advertising and visitor choices
Privacy policy pages do not insert AdSense ad tags, Funding Choices consent-message tags or GA4 measurement tags. Other general pages include the Google AdSense loader, and advertising or consent requests may occur even when no ad is displayed. Installed code does not itself mean that advertising is approved or being served. Google and advertising vendors may use cookies or similar identifiers to serve, measure and personalize ads based on previous visits to this or other websites.
Use Google consent-message choices where offered. Personalized-ad settings are available through My Ad Center; browser cookie controls and the Google Analytics opt-out tool provide further choices. Restricting cookies can affect some functions.
If advertising is served in future or vendors, collected items or storage methods change, the policy and any required choice or consent information will be updated to reflect the actual processing.
Roles of external services
Google provides GA4 analytics and advertising or consent services on general pages. Cloudflare supplies website execution, content-delivery and security infrastructure; OpenAI Sites supplies hosting management. Email inquiries are processed through the sender’s chosen email service and the operator’s mailbox provider.
These descriptions distinguish functional service roles. Processor, third-party disclosure and international-processing relationships depend on the applicable contracts and actual processing. See the provider privacy links below and contact the operator with questions about inquiry data or external-service processing.
Privacy requests and deletion
Request access, correction, deletion, restriction of processing or withdrawal of applicable consent at contact@valufour.com. State the request type, relevant page and reply address. Do not send unnecessary account numbers, passwords or detailed holdings.
Where necessary, the operator will verify your identity or authorized representative and communicate the outcome or grounds for any limitation under applicable law. Inquiry-deletion requests are handled after checking any retention obligations and processing purposes. Email, analytics data and access logs are processed by different services, so verification and deletion scope depend on the data concerned.
The operator cannot remotely access or delete portfolio data stored only in your browser. Use portfolio slot deletion, composition clearing or the browser’s site-data controls on that device. Downloaded or externally shared images must be deleted from the device or service where you saved them.
Effective date and changes
This policy applies from October 30, 2026 to the site where it is published. It was last revised on October 30, 2026, Korea Standard Time. Changes to personal-data processing will be described on this page with their effective date.