80
zscaler.com
Findings
5
·
2
·
1
Checks
8 passive
Executive Summary
AI-GENERATED
zscaler.com scored 80/100, demonstrating a strong security posture. Minor improvements are noted below.
Critical gaps in: Security Headers. Positive signals: Known Breaches, TLS Configuration, HSTS Header all passed.
3 action items identified, including 0 critical. The issues are configuration gaps, not architectural problems. A focused remediation effort of 2–5 days could address all findings.
Action Items
Ordered by priority · 3 items
1
Strengthen email authentication configuration
Email authentication is partially configured for zscaler.com but has gaps. Actions needed: add SPF record. Until DMARC enforcement is active, spoofed emails may still reach recipients.
Compliance Impact
NIST CSFPR.AC-7
Email authentication is a required access control
Remediation Steps
1
Add SPF record if missing: v=spf1 include:_spf.google.com -all
2
Verify with: nslookup -type=txt _dmarc.zscaler.com
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2
Add missing security headers (X-Frame-Options, Referrer-Policy, Permissions-Policy)
3 of 5 recommended security headers are missing on zscaler.com: X-Frame-Options, Referrer-Policy, Permissions-Policy. These headers protect against clickjacking, MIME-sniffing, and unauthorized browser feature access. Adding them is a server configuration change with no application code changes required.
Compliance Impact
PCI-DSS 4.0Req 6.4.1
Security headers are required application controls
OWASPSecure Headers
Recommended baseline for web applications
Remediation Steps
1
Add: X-Frame-Options: DENY (or SAMEORIGIN if you use iframes)
2
Add: Referrer-Policy: strict-origin-when-cross-origin
3
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
4
Verify with: curl -sI https://zscaler.com | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
3
Enable DNSSEC on your domain
Without DNSSEC, DNS responses for zscaler.com can be spoofed, potentially redirecting users to malicious sites. This requires coordination with your domain registrar to publish DS records.
Compliance Impact
NIST 800-53SC-20
Secure name/address resolution service
Remediation Steps
1
Check if your DNS provider supports DNSSEC (Cloudflare, Route53, etc.)
2
Enable DNSSEC signing in your DNS provider dashboard
3
Add the DS record to your registrar for .com TLD
4
Verify: dig +dnssec zscaler.com
Scan Findings
Security Headers
Critical
DNS Configuration
Warning
DMARC / Email Security
Warning
Known Breaches
Healthy
TLS Configuration
Healthy
HSTS Header
Healthy
CVE Exposure
Healthy
Certificate Hygiene
Healthy