Privacy Policy

Anyone can use the Service without creating an account. Text, images and files entered for tool calculations or conversions are processed in your browser. Public comments you explicitly submit are stored separately on the server as described below.

When you submit a tool comment, the dedicated comment server stores your nickname, message, page path, timestamp, IP address and email if an email field is provided. Nicknames, messages and timestamps are public; IP addresses and email addresses are not. Comment passwords are stored as salted hashes and are not saved in browser storage. Nicknames and unfinished drafts are stored in your browser. The following information may also be automatically collected for service operation and advertising.

We review visit statistics through third-party tools including Google Analytics and Ahrefs Web Analytics. Ahrefs says it uses no cookies or persistent identifiers and does not store raw IP addresses.

• •Service operation, incident response, and security maintenance
• •Usage analytics and service improvement
• •Advertising delivery and optimization via Google AdSense
• •External API calls required by specific tools (e.g., lottery draw lookup, IP address lookup)

Collected information is destroyed without delay once its purpose is fulfilled or its retention period expires. When applicable law requires longer retention, we keep the data only for the period specified by that law. Comments remain until you delete them with your password or the operator handles them. A deleted-comment marker and other people’s replies may remain to preserve the conversation.

The Service uses the following third-party services for operation, analytics, and advertising.

• •Google Analytics — anonymized usage analytics
• •Google AdSense — personalized and non-personalized ads
• •Google Tag Manager — analytics and advertising tag management
• •Dhlottery (Korea Lottery) — lottery draw data lookup when using the lottery tool
• •ip-api.com — geolocation lookup when using the IP address tool
• •Ahrefs Web Analytics — cookieless visit statistics; processes page URLs, referrers, browser, device and language details, and approximate location derived from IP addresses

Each third party handles information under its own policy. Ahrefs visit measurement runs on site visits; tool-specific external APIs are called when you use those tools.

Logs and statistical information stored in electronic form are permanently deleted using non-recoverable methods after the retention period.

Google Analytics and advertising may use cookies and similar technologies. You may refuse cookie storage in your browser settings; doing so may reduce statistical accuracy or limit ad personalization. Ahrefs Web Analytics measures visits without cookies. In jurisdictions where GDPR applies (such as the EU), you can choose your advertising-cookie preferences through the consent banner shown on your first visit.

The Service is not directed at children under 14 years of age, and we do not knowingly collect personal information from them.

• •You can block or delete cookies through your browser settings.
• •To opt out of Google Analytics tracking, you may install the official 'Google Analytics Opt-out' browser add-on.
• •You can disable personalized ads from Google AdSense in Google Ad Settings (https://adssettings.google.com).

This policy may be updated to reflect changes in law or the Service. Material changes will be announced on this page.