Is polyfill-fastly.net Safe? Security Analysis for Fastly
https://polyfill-fastly.netCheck if polyfill-fastly.net 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
Fastly Polyfill is a specialized web service provided by Fastly, designed to deliver only the necessary polyfills required by a user's web browser, enhancing web compatibility and performance. The service targets web developers and technology professionals who need efficient browser feature support. The website is well-branded and consistent with Fastly's corporate identity, linking to official privacy and terms pages and providing a GitHub repository for transparency and community engagement. Technically, the site uses modern web technologies including JavaScript and Pico CSS for a responsive and accessible user experience. Hosting and domain registration align with Fastly's infrastructure, indicating a legitimate and professionally managed service. Security posture is good with HTTPS enforced, though explicit security headers and policies are not visible on this page. Privacy compliance is supported by links to comprehensive Fastly privacy policies, though no cookie consent mechanism is present on this specific service page. Overall, the site is professional, trustworthy, and safe for general audiences.
Detected Technologies
11 urgent findings need attention
1 critical · 10 high
- + 3 more findings in the full report below
Keep polyfill-fastly.net under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
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 as a niche service within the broader Fastly ecosystem, focusing on web performance and compatibility by providing tailored polyfill bundles. Its business model is service-oriented, targeting developers who require optimized browser support. The service benefits from Fastly's strong market position in CDN and edge computing, leveraging their infrastructure for hosting and delivery. The presence of a GitHub repository suggests an open-source or community-driven aspect, enhancing credibility and adoption. The lack of direct contact information on this page indicates that support and business inquiries are likely handled through Fastly's main corporate channels. The service complements Fastly's portfolio, potentially driving usage of their CDN and edge services.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a solid security foundation with HTTPS enabled and domain registration through a reputable registrar. However, the absence of visible security headers such as Content-Security-Policy or Strict-Transport-Security on the analyzed content suggests room for improvement. No incident response or security policy information is published on this page, which could be a gap for security-conscious users. No vulnerabilities or exposed sensitive data were detected in the content. The site does not collect sensitive user data directly, reducing risk exposure. Overall, the security posture is good but could be enhanced by publishing explicit security policies and implementing additional HTTP security headers.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and verify HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance protection against common web attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Fastly
Fastly Polyfill is a service that delivers only the polyfills required by the user's web browser, optimizing web compatibility and performance.
good
consistent
Technical Stack
fast
good
good
basic
Security Assessment
- HTTPS enforced (inferred from URL)
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a specialized service page for Fastly's polyfill delivery service.
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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 14 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
DNS Performance
⚡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.net 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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