Device Detection

truth or lie

51Degrees

10/6/2025 5:30 PM

When is a User-Agent version not a version?

51Degrees' approach to Operating System and Browser versions

51Degrees' data team don't just research device models, they also check with the Operating System, Browser, and Application vendor that the reported version is official before a result for PlatformVersion and BrowserVersion is returned.

ios26

51Degrees

9/19/2025 2:30 PM

Apple Freezes User-Agent Strings

What freezing iOS User-Agent means for device detection

Find out what Apple's newly released iOS 26 and Safari 26.0 mean for device detection.

meet us blue rectangular image with city photo backdrop

51Degrees

9/11/2025 2:30 PM

51Degrees Lands at DMEXCO 2025: IP Intelligence Goes Live

Join us in Hall 6 (T016a) as we launch IP Intelligence alongside Device Detection.

51Degrees is at DMEXCO 2025 with our new IP Intelligence + Device Detection. One API call answers: human, location, device. See us in Hall 6 (T016a).

webview-reduction

51Degrees

5/6/2025 2:30 PM

Android 16 WebView User-Agent Reduction: What Developers Need to Know

This blog outlines a key privacy change coming with Android 16: User-Agent (UA) Reduction for Android WebView. Apps using WebView will no longer reliably detect device models or OS versions, which could impact analytics, targeting, and content optimization.