
ZeroFOX
Bolster
PhishEye
DoppelDown
AgentProxy.au
Red Points
Bustem
By pairing cutting-edge AI with expert analysis, we outpace threats like phishing, impersonation, and disinformation—delivering comprehensive coverage, speed, and precision.
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 | doppel.com | eloquentjavascript.net |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States · 250 - 499 employees | — |
| Listed in |
In their own words, as submitted to SaaSHub.

Our AI-native platform unifies threat intelligence, automates takedowns, simulates attacks, and trains employees against today’s most sophisticated multi-channel deception campaigns.
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.
Doppel: Outpacing What’s Next in Social Engineering
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
More videos
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Doppel.com and Eloquent JavaScript.
Doppel.com's answer
AI-native platform unifies threat intelligence, automates takedowns, simulates attacks, and trains employees against today’s most sophisticated multi-channel deception campaigns.
Share your experience with using Doppel.com 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 Doppel.com since Jan 2026.
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 Doppel.com and Eloquent JavaScript, you can also consider the following products.

ZeroFOX is a social risk management tool that enables organizations to identify, manage and mitigate social media based cyber threats.
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Build and debug modern web and cloud applications, by Microsoft
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Peer-to-peer texting at scale for campaigns + organizations
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A front end web development playground.
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AI phishing detection, typosquat & domain monitoring, and coordinated takedowns. PhishEye protects your brand across web, ads, social, and search — built for security, fraud, and brand protection teams.
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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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