Know what device every visitor is using to visit your website.
Use that knowledge to deliver a richer user experience and drive business growth.
Take your website to a whole new level.
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Discover how your customers are viewing your website - what device, what screen size…
Learn how your website performs and discover great insights into how customers behave based on their device.
Richer content, better user experience, increased engagement.
Heavy weight images are a major cause of slow performance.
Managing multiple image assets is a pain.
Use image optimiser to improve performance and reduce image management overheads.
Identify the connection speed and quality of every website visitor.
Deliver a better user experience on your website, by tailoring your content based on your customer's connection.
Great user experience, reduced shopping cart abandonment, better performance.
51Degrees legal terms and conditions.
Find out how our products have been used to improve user experience and to maximise revenue.
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To generate these results in your business contact us.
Understand how 51Degrees works with web platforms.
Browse API Docs
There's documentation about the data model, migrating from competitors and how 51Degrees works.
All the technical support developers need to use our device detection products.
Browse the full list of properties available in 51Degrees device detection solutions. Find out what values are supported in the Lite, Premium and Enterprise data sets, including full descriptions and advice on how they can be used.
Enter a useragent and find out the associated device, operating system and browser.
Blog entries focused on API changes and uses.
Community support forums for questions and answers concern all 51Degrees products and services.
Purchase 51Degrees device data subscriptions and other products and services.
Answers to common questions about 51Degrees products and services.
Compares the major measures, licencing models and costs associated with 51Degrees, DeviceAtlas and ScientiaMobile's WURFL product.
Find devices contained in the 51Degrees data sets by vendor, model or using free text search. View the properties and values available for each device.
Logos and corporate images useful to press, bloggers and affiliates.
Mobile device emulators for Windows based operating systems recommended by 51Degrees.
Please choose one of the links below to obtain a copy of the API. Once the download completes please proceed to the Installation page for instructions on how to install the API.