Privacy policy

Effective date: August 28, 2026. This policy applies to ertaiba.com, published under the name Count & Chance. Privacy questions can be sent to privacy@ertaiba.com.

Publication responsibility and contact

Count & Chance is the publication name used on this website. Alexis Ong is the responsible operator in Singapore and the named responsible editor and author for its guides, interactive labs, source checks, and correction process.

Use the privacy address above for questions or rights requests. Use editorial@ertaiba.com for corrections to published material and contact@ertaiba.com for general inquiries.

Interactive experiments

Experiment parameters and synthetic samples are calculated in the browser. The current version does not require an account, upload a dataset, or store experiment inputs in a site database. Controls and the teaching seed are written into the page URL so a reload or copied experiment link can restore the same setup. That URL can remain in browser history and can appear in hosting request logs or same-site navigation records. Do not add personal or confidential information to an experiment URL. The site's referrer policy limits cross-site requests to the site origin rather than sending the full experiment path and query.

Server and network logs

This site is hosted on Tencent Cloud CVM infrastructure in Singapore. The hosting provider and server software may process IP address, request time, requested URL, referrer, user agent, response status, and security signals to deliver the site, prevent abuse, and diagnose failures. Nginx access and error logs rotate daily and are retained for 10 rotations. Provider practices and legal retention duties may apply independently.

Email

If you contact the publication, the message, sender address, headers, and any information you choose to include are processed to respond, investigate a correction, maintain an accountability record, or protect the service. Do not email sensitive records. Messages may be retained while the request is active and afterward when necessary for security, legal obligations, or a correction history.

Cookies, local storage, and analytics

The first-party experiment code does not set a tracking cookie or use browser storage for advertising profiles. Google Analytics 4 is used on selected public pages with measurement ID G-MQEXNFKKWN to understand aggregate page use, navigation, browser and device categories, and technical performance. It is not loaded on this privacy page, experiment pages, or filterable collection pages. The page location and referrer supplied by the site omit query strings. Necessary hosting or security infrastructure may still use limited technical storage.

Before the Google tag is loaded, Consent Mode defaults analytics storage, advertising storage, advertising user data, and advertising personalization to denied. Until a reader allows analytics, and after a reader declines or withdraws that choice, denied analytics storage prevents the tag from reading or writing first-party analytics cookies. The advanced Consent Mode implementation may still send measurements without cookies for basic reporting and modeling. If a reader allows analytics, the site updates analytics storage to granted and Google Analytics may set first-party cookies named _ga and _ga_<container-id>. The analytics choice does not grant, deny, or otherwise change advertising consent; advertising choices are handled separately. Google describes this processing in How Google uses information from sites or apps that use its services.

The site stores the analytics choice as granted or denied in this browser's local storage under count-and-chance:analytics-consent:v1. Readers can use Analytics choices in the footer to reopen the choice and withdraw consent. Withdrawal updates analytics storage to denied immediately and makes a best-effort attempt to remove accessible first-party Google Analytics cookies from this site. It does not retrospectively delete measurements already sent to Google or information already included in aggregate reporting.

Advertising

The site does not currently load advertising scripts or use advertising cookies. No advertising provider receives data from this site through an advertising script in the current release.

If display advertising is enabled, third-party vendors, including Google, may use cookies to serve ads based on a reader's prior visits to this site or other websites. Google and participating advertising providers may receive the reader's IP address and use cookies, web beacons, device or browser identifiers, and similar technologies to serve, limit, secure, and measure advertising.

Depending on the reader's region and consent choice, Google may serve personalized or non-personalized ads. Personalized advertising may use prior visits, interests, or activity; non-personalized advertising may use contextual information, approximate location, and limited frequency-capping or anti-fraud data. The exact vendors and permitted purposes depend on the regional privacy message and the choices made there. Google explains how it processes data in How Google uses information from sites or apps that use its services.

Readers can manage or opt out of personalized advertising in Google Ads Settings. The vendors selected for European advertising are disclosed in the consent message; Google also publishes its current ad technology partner list, with provider privacy information and available opt-out choices. Browser settings can block or delete cookies, although doing so may also remove saved privacy choices.

Advertising will remain disabled until a Google-certified consent platform has been published and tested for the EEA, United Kingdom, and Switzerland, with equally prominent accept and reject choices, vendor disclosure, and a way to reopen the message and withdraw consent. Before advertising is activated, applicable U.S. state privacy messages and opt-out controls must also be published and tested.

This privacy-policy page does not load Google Analytics, advertising, or a Google consent-message tag. Its first-party privacy control can still read or change the locally stored analytics choice and remove accessible Google Analytics cookies after withdrawal. That keeps the disclosure and withdrawal control available without loading the Google tag.

Sharing and sale

The publication does not sell reader-submitted personal information. The site does not currently load advertising identifiers. Information may otherwise be processed by hosting, email, security, and, when enabled, consent and advertising providers only for their stated services. It may also be disclosed when required by law, to protect rights and security, or during a legitimate transfer of the publication with appropriate notice.

International processing and rights

Service providers may process information in countries different from yours. Depending on location, you may have rights to access, correct, delete, restrict, object, withdraw consent, or complain to a supervisory authority. Send a request to the privacy address above. Identity may need to be verified without collecting more information than reasonably necessary.

Children and changes

The publication is written for a general adult learning audience and is not directed to children. It does not knowingly request personal information from children. Material policy changes receive a new effective date and, when appropriate, a prominent notice before they take effect.