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.
Read More Downloads
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.
Read Case Studies
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.
Download Premium or Enterprise data with a paid for licence key or login.
Download open source APIs for .NET, Java, C, C++, Node, PHP, Python, Perl, NGINX, HAProxy and more.
Select an API
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.
24.com is a leading African network of popular digital publishing brands and online services across internet, mobile, applications and interactive TV. 24.com is the leader in the African digital universe with strong news offering sites in both Kenya and Nigeria. Feature phones still take up over 40% of mobile web traffic in Africa, meaning 24.com needed to use 51Degrees.mobi in order to create light-weight optimised mobile pages.
PHFE WIC (Public Health Foundation Enterprises - WIC Program) is a US Federally funded program helping low income families in the Los Angeles, California area. PHFE found that only 40% of people accessing the website were from a mobile device. This led Mike Whaley (IT Director, PHFE WIC) to optimise the PHFE online education for mobile devices.
From their Los Angeles base, NamiMedia provides enterprise-class advertising solutions that control traffic quality and maximise revenue to an international market. Each day billions of ad queries are received resulting in over 25 million clicks.
51Degrees device detection helps SessionCam receive greater analytic detail about their customers' end users.
"Came to us highly recommended and it hasn’t disappointed"
Raymond Davies - Lead Developer
"Allowed us to optimise our website for mobile users"
Jeff Wells - eBusiness Manager
"Our mobile site is faster and easier to use"
Mike Whaley - IT Director
"Allowed us to identify and adapt to various devices"
Mike Whaley - IT director
Following 51Degrees on twitter for the latest device intelligence updates
Stay up to date with the latest developments in platforms and devices.
Read our Blog.