Privacy and advertising choices

Browser-local input

The decoder, support bitmap and CSV viewer process inputs in your browser tab. Readings and files are not uploaded or saved automatically. Reloading clears the working state. The CSV viewer accepts up to 1 MB and 10,000 data rows. No third-party advertising script runs on these tool pages.

Aggregate measurement

The server records daily aggregate page-request counts, broad referrer categories and estimated browser/bot classifications for up to 90 days. These records exclude IP addresses, visitor identifiers, queries, full referrer URLs and tool inputs. These totals count requests rather than individual visitors. Cloudflare also supplies a browser-performance beacon that can receive page, viewport and performance information. Our tool handlers do not send entered readings or file contents to it. Hosting providers may process separate access logs.

Advertising and consent

Google AdSense may show one manual ad at a reading break after useful reference content on eligible home, PID-detail and guide pages. Tools, directories, search results, policy pages, errors and administration have no ad units. Google’s certified consent interface collects choices in applicable regions. Privacy choices can reopen that interface when available. European refusal or an unknown European signal, a supported US opt-out, our browser advertising preference, Global Privacy Control or Do Not Track prevents our manual ad request. When European consent is granted or explicitly not applicable, but the US state message or signal is unavailable, the ad request uses Google restricted data processing (RDP) and only non-personalized ads. This does not grant European consent. Ads do not refresh automatically. Withdrawing consent stops new requests after the signal is received; it cannot undo an already transmitted request.

Google processing

Google and its partners may use device information, cookies and similar technologies for advertising, consent and fraud prevention. See https://policies.google.com/technologies/partner-sites and https://myadcenter.google.com/ . Google’s consent platform manages consent records. Our advertising opt-out stores only a first-party browser preference. Restricted data processing limits Google’s data use; it does not mean every advertising request is anonymous or cookie-free.

Administration and corrections

Administration uses an essential time-limited session cookie and salted password hashes. If you email a correction, your email provider processes your message. Omit VINs and personal information unless necessary.

Contact

Updated 28 October 2026. Questions: 6520118@qq.com.

Your advertising choice on this browser

You can stop this site's manual ad requests even when Google's message interface is unavailable. This stores only your preference on this browser. Global Privacy Control and Do Not Track also stop our manual ads.

Manual ads can be requested after the required regional checks. The default does not grant European consent.

This does not erase requests already sent to Google. Use Google's privacy choices below to review its consent record.