Is polyfill-fastly.io Safe? Security Analysis for DNStination Inc.
https://polyfill-fastly.ioCheck if polyfill-fastly.io is a scam or legitimate. Free security scan and reviews.
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
The website 'Fastly Polyfill' provides a specialized service that dynamically delivers only the necessary JavaScript polyfills required by a user's browser, optimizing web application compatibility and performance. The service is targeted primarily at web developers and technology users who need to ensure cross-browser functionality. The business is relatively new, founded in 2024, and operates under DNStination Inc., a US-based organization. The website branding and content are consistent and professional, with clear navigation and a modern design using Pico CSS. The presence of links to Fastly's corporate privacy and terms pages suggests affiliation or infrastructure usage by Fastly, a recognized CDN provider. Technically, the site employs modern web standards and technologies, including JavaScript and a lightweight CSS framework, ensuring good performance and mobile optimization. The domain is hosted likely on Fastly's infrastructure, contributing to fast load times and reliable service delivery. The site includes interactive forms allowing users to customize polyfill bundles, reflecting a mature technical implementation. From a security perspective, the site uses HTTPS and does not expose sensitive data. However, it lacks explicit security headers and a published security policy or incident response contacts, which are areas for improvement. Privacy compliance is partial; while a privacy policy is linked, there is no cookie consent mechanism implemented. No direct contact information such as emails or phone numbers are provided on the site, which may impact user trust. Overall, the website presents a low-risk profile with a solid technical foundation and clear business purpose. Strategic recommendations include enhancing security headers, implementing cookie consent, publishing security and incident response policies, and providing direct contact information to improve trust and compliance.
Detected Technologies
11 urgent findings need attention
1 critical · 10 high
- + 3 more findings in the full report below
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Security drift alerts
Risk score drops, new high-severity issues, and header hardening gaps
Compliance watch
GDPR / NIS2 posture changes with governance evidence snapshots
Infrastructure surface
Unexpected open services, SSL expiry, DNS & email authentication changes
Content & tracker intelligence
Marketing tech shifts, analytics drift, and AI recommendation updates
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Security Headers
5 findings
50/100
GDPR Compliance
4 findings
53/100
NIS2 Compliance
9 findings
2/100
Email Security
5 findings
60/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Fastly Polyfill operates in the technology sector, offering a niche service that dynamically delivers JavaScript polyfills tailored to the requesting browser's needs. This service supports web developers by optimizing web application compatibility and performance. The business model is service-oriented, likely generating revenue through usage or integration with Fastly's CDN services. The company is small and newly founded in 2024, positioning itself as a specialized tool within the web development ecosystem. The presence of a GitHub repository indicates an open or community-driven aspect, enhancing credibility and potential for collaboration. The website's affiliation with Fastly through branding and linked policies suggests strategic partnerships or infrastructure reliance. No direct contact or sales information is provided, indicating a focus on developer adoption rather than direct sales. Growth potential lies in expanding polyfill coverage and integration with broader web performance tools.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a good baseline security posture with HTTPS enforced and no visible exposure of sensitive data. The domain registration is transparent and consistent with the business identity, registered with a reputable registrar without privacy protection, which supports trustworthiness. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security hardening. No published security policy or incident response information is available, limiting transparency in handling security events. The lack of a vulnerability disclosure policy or security.txt file further constrains responsible vulnerability management. Forms on the site appear secure with no indication of insecure input handling. Overall, the security posture is solid but could be enhanced by adopting additional security best practices and transparency measures.
Strategic Recommendations
Priority Actions for Security Improvement
Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
DNStination Inc.
Fastly Polyfill is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browser.
good
consistent
Technical Stack
fast
good
good
basic
Security Assessment
- HTTPS enforced (implied by URL scheme)
- No exposed sensitive data in HTML
- No vulnerable libraries detected in scripts
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website provides a specialized polyfill service for web developers
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Weak Referrer-Policy configuration
LOWCurrent value: "origin-when-cross-origin"
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
Sensitive data may be cached
LOWCache-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
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
HIGHDetected sectors: transport, digital
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
No email authentication configured
CRITICALDomain is vulnerable to email spoofing
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
SSL Certificate Expires Soon
HIGHSSL certificate expires in 11 days
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
No DMARC Record
MEDIUMDMARC policy not configured
Domain Registration Details
DNS Records
DNSSEC Status
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
How does polyfill-fastly.io compare?
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🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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PDF Report & Export
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
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
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