What is the security status of stackblitz.com?

stackblitz.com has a security score of 67/100, rated as Moderate Risk. The website may have security concerns that should be addressed.

Is stackblitz.com safe to use?

Our security scan shows stackblitz.com is Moderate Risk. SSL security issues detected. Always practice safe browsing habits.

Does stackblitz.com have viruses?

Our comprehensive security scan analyzes multiple security factors. Based on the overall security score of 67/100, the website is rated as Moderate Risk. However, websites can change over time, so always use updated security software.

What is stackblitz.com's trust score?

stackblitz.com has a security score of 67/100. This score is based on multiple factors including SSL security, security headers, DNS health, and compliance checks.

I want to know if stackblitz.com is a legitimate website or if it's a scam.

According to our comprehensive security analysis, stackblitz.com has a security score of 67/100, which indicates it is Moderate Risk. StackBlitz, Inc. operates a leading browser-based integrated development environment (IDE) platform that enables web developers to create and launch applications instantly without local setup. The company leverages innovative WebContainers technology to run full development environments securely within the browser, positioning itself as a market innovator with adoption by major technology companies. The website reflects a mature, professional business with clear branding and comprehensive service offerings targeting frontend and product teams. Technically, the site uses modern frameworks like Astro and integrates multiple analytics and marketing tools, hosted on Cloudflare infrastructure, delivering fast and mobile-optimized user experiences. Security posture is strong with HTTPS and domain transfer protections, though improvements are recommended in DNSSEC, security headers, and published security policies. Privacy compliance is adequate with clear privacy and terms pages but lacks cookie consent mechanisms despite tracking usage. Overall, the site is trustworthy, professional, and well-positioned in the technology sector.

Is stackblitz.com Safe? Security Analysis for StackBlitz, Inc.

https://stackblitz.com

Check if stackblitz.com is a scam or legitimate. Free security scan and reviews.

TechnologyN/amedium

Astro v4.5.13WebContainersWebAssemblyGoogle Tag ManagerGoogle Analytics+3 more

Analyzed 10/9/2025Completed 10:20:50 PM

Security Score

MEDIUM RISK

Exclusive insights unlocked

Unlock the complete security report for stackblitz.com

Get full access to AI recommendations, compliance evidence, vulnerability remediation steps, and downloadable PDF reports. Upgrade once for lifetime access to this scan.

Full Report Access

All modules, AI insights, PDF download

39.90 €one-time • Incl. 21% VAT

Marketing Intelligence

Contact emails, phone numbers & warm leads

49.90 €one-time • Incl. 21% VAT

How it works

Enter your email to receive the unlocked report.
Complete the secure EveryPay checkout (cards & local methods supported).
You’ll receive an email with your unique unlock code and the PDF export.

Delivery email

Already purchased?

Order summary

Domainstackblitz.com

Access tierFull report or marketing add-on

I have read and agree to the Terms & Conditions and Privacy Policy.I acknowledge the Returns & Refunds policy and understand the digital delivery terms.

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.

SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com • +371 2256 5353

AI Summary

StackBlitz, Inc. operates a leading browser-based integrated development environment (IDE) platform that enables web developers to create and launch applications instantly without local setup. The company leverages innov… Unlock the full Guard report to read the complete analysis.

Detected Technologies

Astro v4.5.13WebContainersWebAssemblyGoogle Tag ManagerGoogle AnalyticsMixpanelSegment AnalyticsCloudflare DNS

Security Headers

6 findings

30/100

GDPR Compliance

4 findings

53/100

NIS2 Compliance

9 findings

2/100

Email Security

1 finding

90/100

🧠AI Business Intelligence

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

Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.

Business Intelligence

Market & Strategic Analysis

StackBlitz holds a competitive advantage through its proprietary WebContainers technology, enabling faster and more secure browser-based development environments compared to legacy cloud IDEs. Its business model centers on SaaS offerings including enterprise solutions, integrations, and APIs, targeting web developers and product teams at large enterprises and innovative companies. The company demonstrates strong market presence with endorsements from industry leaders and partnerships with major tech firms. Revenue streams likely include enterprise licensing, API usage, and premium services. The ecosystem includes related domains like bolt.new and webcontainers.io, indicating a growing product suite. Strategic observations highlight the company's focus on developer productivity and cloud-native innovation, with potential growth in enterprise adoption and platform integrations.

Security Posture Analysis

Comprehensive Security Assessment

StackBlitz exhibits a mature security posture with enforced HTTPS, domain transfer lock, and use of reputable DNS providers. No exposed sensitive data or vulnerable libraries were detected in the website content. However, the absence of DNSSEC and explicit security headers such as Content Security Policy or HSTS represents areas for enhancement. The lack of publicly available incident response or vulnerability disclosure policies limits transparency and readiness perception. Cookie consent mechanisms are missing despite use of tracking technologies, which may pose compliance risks under GDPR. Overall, the security maturity is good but could be improved by formalizing security policies, enhancing DNS security, and implementing privacy controls.

Strategic Recommendations

Priority Actions for Security Improvement

Upgrade to the full Guard report to access tailored remediation steps.

✨Observations

AI-powered comprehensive website and business analysis.

A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.

AI-Enhanced Website Analysis

Business Insights

Company:

StackBlitz, Inc.

Description:

StackBlitz is the collaborative browser-based IDE for web developers. It eliminates time-consuming local configuration and lets developers spend more time building.

Key Services:

Browser-based IDEWebContainers technologyBolt.new app creationEnterprise ServerIntegrationsDesign SystemsWebContainer APIWeb Publisher

Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:

Astro v4.5.13WebContainersWebAssemblyGoogle Tag ManagerGoogle AnalyticsMixpanelSegment AnalyticsCloudflare DNS

Frameworks:

Astro

Platforms:

Browser-based IDE platform

Performance:

fast

Mobile:

excellent

Accessibility:

good

SEO:

good

Security Assessment

Security Score:

85/100

Best Practices:

HTTPS enforced
Domain status clientTransferProhibited
No exposed sensitive data in HTML
Use of modern secure technologies

Analytics & Tracking

Services:

Google AnalyticsMixpanelSegment

Tracking Level:moderate

Privacy Compliance:basic

Advertising & Marketing

Tracking Pixels:

MixpanelSegment

Marketing Tools:

MixpanelSegment

Transparency Level:basic

Website Quality Assessment

Design Quality:excellent

User Experience:excellent

Content Relevance:excellent

Navigation Clarity:excellent

Professionalism:excellent

Trustworthiness:high

Key Observations

Website is fully accessible with rich content and modern design.

🛡️Security Headers

HTTP security headers analysis and recommendations.

Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.

Security Headers

HTTP security headers analysis

30/100

Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections Unlock the full report to read the complete fix.

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks Unlock the full report to read the complete fix.

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load Unlock the full report to read the complete fix.

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended) Unlock the full report to read the complete fix.

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs Unlock the full report to read the complete fix.

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages Unlock the full report to read the complete fix.

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.

NIS2 Compliance

Network & Information Security Directive

2/100

Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.

No security contact information

HIGH

NIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.

Critical sector without clear security compliance

HIGH

Detected sectors: energy, transport, health, digital Unlock the full report to read the complete fix.

📧Email Security

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

Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.

Email Security

SPF, DKIM, and DMARC validation

90/100

Score

DMARC not enforcing

MEDIUM

DMARC policy is set to "none" Unlock the full report to read the complete fix.

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:_spf.google.com include:45403856.spf03.hubspotemail.net ~all

DNS Lookups:2/10

Policy:~all

DKIM Selectors Found

Selector:mail(1416-bit rsa)

DMARC Details

Policy:none

Aggregate Reports:2324890eb4bf4916962f2e774af56822@dmarc-reports.cloudflare.net

MTA-STS Details

🏆SSL/TLS Security

Certificate validity and encryption analysis.

This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.

SSL/TLS Security

Certificate validity and encryption analysis

100/100

Score

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints Unlock the full report to read the complete fix.

Certificate Details

Subject:stackblitz.com

Issuer:Amazon RSA 2048 M03

Valid Until:5/16/2026 (219 days)

SANs:stackblitz.com

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.

DNS Health

DNS configuration and security assessment

75/100

Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain Unlock the full report to read the complete fix.

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found Unlock the full report to read the complete fix.

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification Unlock the full report to read the complete fix.

DMARC Policy Set to None

LOW

DMARC is configured but not enforcing any policy Unlock the full report to read the complete fix.

Domain Registration Details

Domain Age

11 years(mature)

Expiry Risk

medium(68 days)

Protection Level

basicDNSSEC OFF

DNS Records

A Records:3.164.230.103, 3.164.230.90, 3.164.230.97, 3.164.230.5

AAAA Records:2600:9000:278c:f400:2:496a:a40:93a1, 2600:9000:278c:b000:2:496a:a40:93a1, 2600:9000:278c:4e00:2:496a:a40:93a1, 2600:9000:278c:d800:2:496a:a40:93a1, 2600:9000:278c:400:2:496a:a40:93a1, 2600:9000:278c:8200:2:496a:a40:93a1, 2600:9000:278c:c400:2:496a:a40:93a1, 2600:9000:278c:4000:2:496a:a40:93a1

Name Servers:

igor.ns.cloudflare.com

zoe.ns.cloudflare.com

MX Records:

1: aspmx.l.google.com

10: alt3.aspmx.l.google.com

10: alt4.aspmx.l.google.com

5: alt1.aspmx.l.google.com

5: alt2.aspmx.l.google.com

SOA:Serial: 2385434815, TTL: 1800s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:53ms

SPF Analysis

SPF Record:

v=spf1 include:_spf.google.com include:45403856.spf03.hubspotemail.net ~all

⚡Network Security

Port scanning and network exposure analysis.

See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.

Network Security

Port scanning and network exposure analysis

100/100

Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports Unlock the full report to read the complete fix.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

Unlock the full Guard report to review the complete technical breakdown and AI recommendations.

How did we do?

Your feedback directly shapes our roadmap. Rate the quality of this report, leave an optional comment, and let us know if you want our security specialists to follow up.

Analyze Another Website

Is stackblitz.com a Scam? Security Check Results - StackBlitz, Inc. Reviews

Is stackblitz.com Safe? Security Analysis for StackBlitz, Inc.

Unlock the complete security report for stackblitz.com

How it works

Order summary

AI Summary

Detected Technologies

🧠AI Business Intelligence

Business Intelligence

Security Posture Analysis

Strategic Recommendations

✨Observations

AI-Enhanced Website Analysis

Business Insights

Technical Stack

Security Assessment

Analytics & Tracking

Advertising & Marketing

Website Quality Assessment

Key Observations

🛡️Security Headers

Security Headers

Missing Strict-Transport-Security header

Missing X-Frame-Options header

Missing Content-Security-Policy header

Missing X-XSS-Protection header

Missing Permissions-Policy header

Sensitive data may be cached

👤GDPR Compliance

GDPR Compliance

No Cookie Policy found

No Cookie Consent Banner found

No Data Protection Officer mentioned

Privacy policy may not be GDPR compliant

GDPR Compliance Analysis

🛡️NIS2 Compliance

NIS2 Compliance

No information security framework found

No vulnerability disclosure policy

No security policy documentation found

No incident response procedures found

No business continuity planning found

No security contact information

No vulnerability reporting mechanism

No NIS2 reference found

Critical sector without clear security compliance

📧Email Security

Email Security

DMARC not enforcing

SPF Details

DKIM Selectors Found

DMARC Details

MTA-STS Details

🏆SSL/TLS Security

SSL/TLS Security

Partial SSL/TLS Assessment

Certificate Details

OCSP Status

📊DNS Health

DNS Health

DNSSEC Not Enabled

CAA Records Not Configured

Domain Delete Lock Not Enabled

DMARC Policy Set to None

Domain Registration Details

DNS Records

DNSSEC Status

DNS Performance

SPF Analysis

⚡Network Security

Network Security

Good Network Security Posture

🔧Technical Analysis

Technical Analysis

Additional Findings

Related Partner Domains

bolt.new

webcontainers.io

—out of 5