My user agent
Web & developerWhat is my user-agent string?
Read the exact browser string and available hints.
Your user-agent string
Reading this browser…
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Identity details
- Browser and product version
- Not reported
- Reported engine
- Not reported
- Reported operating system
- Not reported
- Device type
- Unknown device
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These device facts stay on this page. No permissions are requested. Reload to take a new snapshot.
More browser and device details
Vendor release data
Vendor release data
This compares reported versions with vendor releases, not security fixes or vehicle update eligibility. ESR and staged rollouts may differ.
Reported values can be rounded, hidden or spoofed. API presence does not promise permission or successful use.
Read the exact browser string and available hints.
How to use
- Open this page on the device you want to inspect.
- Read the reported browser and expand a section for details.
- Open the Chrome or Tesla view to compare Chromium releases.
How it works
Your browser reports its identity through a user-agent string and, where available, client hints. Full version hints take priority; a string ending in 0.0.0 may reveal only the major version. Other sections show the capabilities this page can read without asking permission.
Update comparisons use official vendor release feeds. Versions are compared number by number: 120.10 is later than 120.9. The major-version gap is the current major minus your major, with a minimum of zero. Release-date gaps use the earliest Chrome serving dates available for both majors, divided by an average month.
A browser may hide its brand, reduce device details or report another browser for compatibility. An unidentified Chromium browser might be a private derivative. Screen dimensions are CSS pixels, storage estimates concern this website, and media results describe fixed sample formats. None of these readings proves hardware performance or security.
Worked example
How far behind is major 120 when stable is 125?
- Subtract the reported major from the stable major: 125 − 120 = 5.
The example is 5 major versions behind. Matching majors alone cannot establish patch currency.
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Frequently asked questions
What is a user-agent string?
It is a compatibility description supplied by the browser. It can contain several browser names without representing several installed browsers.
Why does Chrome mention Safari?
Compatibility tokens help websites accept the browser. The Safari token alone does not identify Safari.
What are client hints?
They are browser-supplied identity fields, sometimes including full versions. The browser decides what to expose.
Can I change my user agent?
Developer tools and some browser settings can override it. This page displays the reported value.
Can I share this report through the page URL?
No. URLs select a view only; device facts are never put into them.
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