This site is a static reference. It has no accounts, no comments, no contact form and no shopping cart, so there is very little to collect. This page states exactly what is collected and what is not.
Last updated 2026-10-28
Server logs. Like any web server, the machine serving this site records the requested address, the time, the response status and the browser user-agent string. These logs exist for security and troubleshooting and are not combined with anything else.
Analytics. Google Analytics 4 (measurement ID G-385M15846Y) records
page views, approximate location derived from IP address, device type, and how you arrived at
the site. Google processes this data as described in its own privacy policy. We see aggregate
reports, not individual visitors.
Cookies. Analytics sets first-party cookies to distinguish sessions. There are no other cookies: no login session, no preference store, no advertising identifier. Blocking cookies does not break any feature of this site, because no feature depends on them.
No name, no postal address, no phone number, no payment details, no account credentials. The site has no facility to receive them, so there is no store of them to lose. The search box runs entirely in your browser against a static index file — what you type into it is not sent to a server.
No ad network code is currently loaded on any page of this site. An
ads.txt file is published at the site root authorising Google as a seller; that
file is a declaration of who may sell inventory, not evidence that ads are being served
today.
If display advertising is enabled in future, this section will be updated before any ad code goes live, and it will state: which network, that third-party vendors including Google may use cookies to serve ads based on prior visits to this and other sites, and how to opt out of personalised advertising through Google's Ads Settings. We will not enable ads without updating this page first.
You can block analytics in several ways, all of which leave the site fully usable: enable a tracking-protection browser extension, block third-party scripts, or install the Google Analytics opt-out browser add-on. Every page here is static HTML and works with all scripts disabled.
Two kinds of external request can occur: the Google Analytics script described above, and outbound links you choose to click — manufacturer owner-information sites and government databases. Those destinations have their own privacy policies; once you leave this site, this policy no longer applies.
Because no personal data is stored on this site, there is in practice no account to delete and no record to export. Analytics data is held by Google, not by us, and can be excluded through the opt-out above. If you believe the site holds something about you, or you want a correction, a deletion or an explanation of anything in this policy, write to miaofei129999@gmail.com and it will be answered.
This site is a technical reference for vehicle owners and is not directed at children. It does not knowingly collect information from anyone, including children.
If what the site collects changes, this page is updated on the same day and the date at the top changes with it. There is no mailing list, so the date on this page is the only notice mechanism.