Skip to main content

Is codesandbox.io a Scam? Security Check Results - CodeSandbox Reviews

codesandbox.io favicon

Is codesandbox.io Safe? Security Analysis for CodeSandbox

Check if codesandbox.io is a scam or legitimate. Free security scan and reviews.

TechnologyN/amedium
ReactNext.jsCloudflare DNSWeb Fonts (woff2)JavaScript ES6+
Analyzed 9/4/2025Completed 11:29:14 AM
63
Security Score
MEDIUM RISK

AI Summary

CodeSandbox is a cloud-based development platform that enables developers to create, collaborate, and deploy projects efficiently from any device. Founded in 2016, it has established itself as a leading SaaS provider in the developer tools market, offering instant cloud development environments. The website reflects a modern, professional design with a focus on developer audiences and collaboration features. Technically, the site leverages Next.js and React frameworks, hosted with Cloudflare DNS services, ensuring fast performance and mobile optimization. Security posture is solid with HTTPS enforced and domain transfer protections, though there is room for improvement in DNSSEC adoption and security header implementation. Privacy compliance is currently weak due to the absence of explicit privacy and cookie policies. Overall, the site is trustworthy and professional but would benefit from enhanced transparency and security disclosures.

Detected Technologies

ReactNext.jsCloudflare DNSWeb Fonts (woff2)JavaScript ES6+

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

CodeSandbox operates in the technology sector, targeting developers and software teams with cloud development environments. Its business model is SaaS-based, focusing on ease of use, collaboration, and rapid project deployment. The company has a medium-sized presence with consistent branding and a clear market position as a leading cloud IDE provider. The absence of detailed contact or legal information on the site suggests a focus on product over corporate transparency. Partnerships or subsidiaries are not evident from the data. The company benefits from a strong technical infrastructure and a growing user base, positioning it well for continued growth in the developer tools ecosystem.

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates a good security baseline with HTTPS and clientTransferProhibited domain status. However, DNSSEC is not enabled, which is a recommended best practice to prevent DNS spoofing. No security.txt or vulnerability disclosure policies are published, limiting transparency for security researchers. Security headers are not detected in the provided data, which could expose the site to certain web-based attacks. No sensitive data exposure or vulnerable libraries were identified. Incident response contact channels are not publicly available, which could delay response to security incidents. Overall, the security posture is moderate but could be significantly improved with better policy publication and technical controls.

Strategic Recommendations

Priority Actions for Security Improvement

1

Enable DNSSEC on the domain to enhance DNS security.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

CodeSandbox

Description:

CodeSandbox is a cloud development platform that empowers developers to code, collaborate and ship projects of any size from any device in record time.

Key Services:
cloud development environmentscollaborative codingproject shipping from any device
Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:
ReactNext.jsCloudflare DNSWeb Fonts (woff2)JavaScript ES6+
Frameworks:
Next.js
Platforms:
Cloud-based SaaS
Performance:

fast

Mobile:

excellent

Accessibility:

good

SEO:

good

Security Assessment

Security Score:
80/100
Best Practices:
  • HTTPS enforced
  • clientTransferProhibited domain status

Analytics & Tracking

Tracking Level:minimal
Privacy Compliance:poor

Advertising & Marketing

Transparency Level:poor

Website Quality Assessment

Design Quality:excellent
User Experience:excellent
Content Relevance:excellent
Navigation Clarity:excellent
Professionalism:excellent
Trustworthiness:high

Key Observations

1

Website is fully accessible with no blocking or WAF challenges

🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

15/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

83/100
Score

No Data Protection Officer mentioned

LOW

Large organizations may need to designate a DPO under GDPR

Privacy policy may not be GDPR compliant

MEDIUM

Privacy policy lacks explicit GDPR compliance elements

GDPR Compliance Analysis

Privacy Policy85% confidence
Cookie Policy85% confidence
Contact Information Found90% confidence
phone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

2/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

Critical sector without clear security compliance

HIGH

Detected sectors: energy, transport, digital

📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Email Security

SPF, DKIM, and DMARC validation

65/100
Score

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

DMARC Partial Enforcement

LOW

DMARC only applies to 10% of messages

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
SPF Details
Record:
v=spf1 include:mailgun.org include:_spf.google.com ~all
DNS Lookups:2/10
Policy:~all
DMARC Details
Policy:quarantine(10% enforcement)
Aggregate Reports:c46fa7323b3a404b8d8fc8df01ad6e6e@dmarc-reports.cloudflare.net
Forensic Reports:email-reports@codesandbox.io

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

75/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 64 days

Weak SSL Key Length

HIGH

SSL certificate uses 256-bit key, which is considered weak

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:codesandbox.io
Issuer:E6
Valid Until:11/7/2025 (64 days)
SANs:*.nodebox.codesandbox.io, codesandbox.io

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

80/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

Domain Registration Details

Domain Age
8 years(mature)
Expiry Risk
none(1539 days)
Protection Level
basicDNSSEC OFF
Suspicious Indicators Detected
  • Privacy/proxy registration detected

DNS Records

A Records:172.64.144.247, 104.18.43.9
AAAA Records:2a06:98c1:3103::ac40:90f7, 2a06:98c1:310a::6812:2b09
Name Servers:
adel.ns.cloudflare.com
greg.ns.cloudflare.com
MX Records:
5: alt2.aspmx.l.google.com
10: alt3.aspmx.l.google.com
5: alt1.aspmx.l.google.com
1: aspmx.l.google.com
10: alt4.aspmx.l.google.com
SOA:Serial: 2381665729, TTL: 1800s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:42ms

SPF Analysis

SPF Record:
v=spf1 include:mailgun.org include:_spf.google.com ~all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website is built using modern web technologies including React and Next.js, ensuring a responsive and performant user experience. Hosting and DNS are managed via Cloudflare, providing reliability and DDoS protection. The site uses web fonts and asynchronous JavaScript loading to optimize performance. Accessibility features such as focus outlines and semantic HTML are present, contributing to good usability. SEO is supported by comprehensive meta tags and Open Graph data. No CMS was detected, indicating a custom or framework-based site. The technical implementation is robust, though security header implementation and DNSSEC adoption are areas for improvement.
Analyze Another Website