
SEON
FingerprintJS
Rupt
Castle
ShieldLabs
ThumbmarkJS
Sift
Stop fraud and reduce friction across web and mobile apps with real-time device intelligence.
VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
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EJS
Eloquent JavaScript
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| Website | shield.com | eloquentjavascript.net |
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| Platforms | — | |
| Company | Startup from Singapore · 100 - 249 employees · 2008 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

SHIELD is a device-first fraud intelligence platform built on the world’s most persistent device identification technology across applications and platforms. Powered by SHIELD AI and patented technology (SHIELD Sentinel), SHIELD sets the global standard for device identification (SHIELD Device...
No description of Eloquent JavaScript yet.
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
SHIELD x HappyFresh(Online grocery marketplace)
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Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
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How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing SHIELD and Eloquent JavaScript.
SHIELD's answer
Most fraud solutions are web-first and rely heavily on personal data and static identifiers that are easily bypassed. They are also often focused on addressing fraud at specific checkpoints. SHIELD is device-first. Fraudsters can spoof data, accounts, and even identities, but they always need a device to act. This is why we stop fraud at the root.
SHIELD's answer
Our plug-and-play SDKs and lightweight JavaScript snippets can be integrated in a matter of hours — not weeks or months. There’s no training period required, enabling your team to start detecting fraud immediately. Most customers see tangible results on day one, with zero disruption to existing workflows.
SHIELD's answer
SHIELD works with digital businesses across every region and industry where trust and safety are mission-critical. Our customers include global unicorns and fast-scaling platforms in mobility, fintech, e-commerce, igaming, digital identity, and more. If your platform faces fraud, or trust & safety challenges, SHIELD can help you eliminate malicious users and scale growth with confidence.
SHIELD's answer
SHIELD deliver real-time device intelligence globally, with offices in San Francisco, Singapore, Jakarta, Dubai, London, São Paulo, and more. We are a global team, which helps us stay close to the latest fraud trends, and our clients.
SHIELD's answer
inDrive, Truemoney, Maya, Swiggy, Buymed, Atlas, MPL,
Share your experience with using SHIELD and Eloquent JavaScript. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking SHIELD since Jun 2025.
If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / about 1 year ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
When comparing SHIELD and Eloquent JavaScript, you can also consider the following products.

SEON Sense Platform is a modular and AI-powered fraud detection software that deliver clear results with an automated, machine-driven workflow.
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Build and debug modern web and cloud applications, by Microsoft
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Fraud detection and prevention using browser fingerprinting with 99.5% accuracy. Stops account sharing, payment processing fraud and gaming.
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Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
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