
Coursera
Udemy
Free Code Camp
Khan Academy
edX
Pluralsight
Treehouse
Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.

SecurityTrails
Nessus Vulnerability Scanner
Red Sentry
Find out how secure your business domain really is. Free instant scan — SSL, email protection, breach history, security headers. Get your score in 60 seconds.

Which is more popular?
Based on our record, Codecademy seems to be more popular. It has been mentioned 113 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codecademy.com | sentryscore.com |
| Pricing | ||
| Company | Startup from the United States | — |
| Listed in |
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.
Should You Sign Up For CodeCademy?!
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Codecademy and SentryScore.
SentryScore's answer:
Most security tools either cost thousands a month or require a security expert to interpret the results. SentryScore is different on both counts.
SentryScore's answer:
The biggest competitors in this space — SecurityTrails, Qualys, Nessus — are enterprise tools priced and designed for enterprise teams. SentryScore is built from the ground up for the opposite end of the market.
If you're a Fortune 500 with a security team, use Qualys. If you're a 10-person law firm trying to understand your exposure, SentryScore was built for you.
SentryScore's answer:
SentryScore is built for small business owners and operators who are not security professionals — specifically:
The common thread: they know security matters, they’ve probably been asked about it, but they don’t have an IT department or a CISO. They need answers fast, in plain English, without a six-figure contract.
SentryScore's answer:
SentryScore was built out of a recurring frustration.
Grant Heckman, the founder, has spent years in cybersecurity working with enterprise clients. When friends and family would ask “Am I secure?” or “My insurance company is asking about my security posture — what do I even say?” — there was no good answer to point them to. Enterprise tools were overkill. Free tools were either useless or so technical they created more confusion than clarity.
SentryScore started as an internal tool to quickly assess a domain's security health for SMB clients. After seeing how much value it delivered in seconds versus hours of manual work, we built it into a product anyone could use.
The name reflects the mission: give every business a score they can understand, track, and act on — the same way a credit score made personal finance legible to everyone.
SentryScore's answer:
SentryScore is built on a modern, lightweight stack optimized for speed and reliability:
SentryScore's answer:
SentryScore launched in early 2026. We're in early growth — users include small medical and dental practices, independent law firms, and accounting offices that have used the free scan to assess their domain exposure before a vendor audit or cyber insurance renewal.
We don't name client names publicly at this stage, but our target segment is SMBs with 1–50 employees in regulated industries (healthcare, legal, financial services) who need a quick, credible answer to the question: "How secure are we?"
Share your experience with using Codecademy and SentryScore. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Codecademy emphasizes programming and helps users understand coding with hands-on practical projects. It is a beginner-friendly platform offering 15 programming languages in more than 20 categories. Codecademy...
Comparing all the features, pros, cons, and pricing of these Treehouse alternatives, Codecademy turns out to be ideal for coding learners. This online platform offers courses for beginners, intermediates, and advanced...
Community support: Students at Code Academy are part of a tight-knit community where they may interact with instructors, classmates, and subject matter experts alike.
We have no reviews of SentryScore yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


However, a little research was enough to dispel that misconception. Yes, there was a technical aspect to programming, but most developers weren't doing complex calculations all the time. So, my preconceptions faded away and turned into... - Source: dev.to / over 2 years ago
Codecademy is a freemium platform with high-quality content. Their courses range from web development to data science, and are interactive and text-based. - Source: dev.to / over 2 years ago
If you really have decided to become the next Guru on Scratch then you should learn at least one real programming language like JavaScript. I found this JavaScript course very useful: https://learnjavascript.online/. You can also learn... - Source: dev.to / about 3 years ago
Tracking SentryScore since Mar 2026.
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Nessus identifies the vulnerabilities, policy-violating configurations, and malware that attackers could use to penetrate your network.
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Learn to code by helping nonprofits.
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