Number 1: 
ComputeSDK
Independent weekly benchmarks for infrastructure providers
- Developer Tools
- United States
- DR 51 −1 (down) since last check
Developer Tools · United Kingdom
51Degrees
Device and IP intelligence APIs for developers
- Community votes
- 0
- DR by Ahrefs
- 64 no change since last check
- Started
- 2010
Ahrefs Domain Rating benchmarked 13 Nov 2026, rebuilt 13 Nov 2026.
What it is
51Degrees is a developer-focused platform offering device detection and IP intelligence services. The company provides APIs and tools to inspect device models, operating systems, browsers, and detect crawlers and AI traffic. Their services include IP geolocation, reverse geocoding, TAC database integration, and bot detection with human confidence scoring. 51Degrees offers deployment flexibility with both cloud and on-premise options, supporting multiple programming languages including C, C++, C#, Java, Node, PHP, Python, Varnish, and NGINX. The platform includes developer tools such as the 51Did Inspector for analyzing identifiers, a Prebid.js integration for real-time bidding, and a preference management platform for handling user choices.
What it is built with
- Device Detection - identify device model, OS, browser, and hardware
- IP Intelligence - location, network, carrier, and VPN detection
- Bot detection and Human Confidence scoring
- Geolocation and reverse geocoding powered by OpenStreetMap
- Pipeline API for custom data services
- 51Did Inspector tool to inspect identifiers
- Prebid.js RTD module integration
- Cloud and on-premise deployment options
- Support for multiple programming languages
- User-Agent Client Hints support
Pricing
Pricing model: Freemium
Free plan: 10,000 monthly requests (cloud and on-premise); Essentials: €49 per month for 100,000 requests (cloud); Pro: €360 per month for 1,000,000 requests (cloud); Pro Plus: €680 per month for 5,000,000 requests (cloud); Bespoke: unlimited requests, custom terms (cloud and on-premise)
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51Degrees metrics
| Metric | Value |
|---|---|
| Domain Rating | 64 no change since last check |
| Trust Flow | 17 no change since last check |
| Citation Flow | 43 no change since last check |
| Referring domains | 398 no change since last check |
| External backlinks | 147,416 no change since last check |
Ahrefs Domain Rating benchmarked 13 Nov 2026, rebuilt 13 Nov 2026. Main build topic: Computers/Software/Internet (16). Majestic benchmarked 13 Nov 2026, rebuilt 13 Nov 2026. Link data built by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
51Degrees domain build sheet
Open the build sheet
| Domain age | 17 years |
|---|---|
| Registered | |
| Expires | |
| Registrar | Register SPA |
| DNSSEC | Not signed |
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Questions from the bench
- What types of data inputs can I use with the device detection pipeline?
- With Device Detection you can input a User-Agent, User-Agent Client Hints, a TAC value, or a native app key. For Geolocation, latitude and longitude will give you the location result.
- What programming languages does 51Degrees support?
- 51Degrees supports C, C++, C#, Java, Node, PHP, Python, Varnish, and NGINX.
- What payment methods are available for subscriptions?
- You can pay by credit card instantly, or you can place a purchase order to receive an invoice. Credit card payments include support for American Express, VISA, and Mastercard. Bank transfer is available for purchase orders.
- How can I switch between cloud and on-premise deployment?
- Switching between cloud and on-premise configuration depends on your target development language, but in .NET and Java you can switch easily by calling the 'UseOnPremise' or 'UseCloud' Pipeline builder methods. For enterprise products, you must have a License for both on-premise and cloud.
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