development

Applications, proxies, and analytics platforms often lowercase or otherwise normalize User-Agent strings before they are processed. This blog explains why a User-Agent is structured data rather than ordinary text, what is lost when it is modified, and the best practice for keeping device detection accurate.

Find out how 51Degrees Engineering constructed the data processing tools behind the IP Intelligence countries feature.

The new 51Degrees Bluetooth properties provide separate identifiers for Bluetooth versions and profiles, enabling precise categorization of device support, such as identifying Low Energy (LE) capability regardless of Bluetooth version.

The blog discusses how strict Content Security Policy (CSP) settings blocked 51Degrees' device detection script, which required 'unsafe-eval' for dynamic JavaScript execution. The solution was to temporarily enable 'unsafe-eval' to restore functionality while managing security risks.

The new 51Degrees IsArtificialIntelligence property helps identify whether a web crawler is being used to gather data for AI training. This property gives the user greater control and can be used to block certain crawlers from accessing content, particularly when AI training doesn't serve their interests.

We’ve retired the HAProxy git.51degrees.com service. We recommend you get started with Version 4 which retains features such as in-memory data upgrades and multi-threading support.

DLL and GAC errors, blocked requests, or the IIS application pool keeps stopping. This blog provides solutions for some errors you may see if you are using 51Degrees with IIS and .NET Framework.

Version 2.6 of the OpenRTB specification introduces the Structured User Agent. This new Object: Device attribute addresses Google’s changes to the User-Agent and the new User-Agent Client Hints.

Google has made preparing for the User-Agent reduction complicated, but 51Degrees provides the tools to make implementing User-Agent Client Hints simple.

The 51Degrees UAParser provides comprehensive device data based on User-Agent Client Hints and the User-Agent, and can reliably detect Apple iPhone models.