Overview
Findings
Actions
Details
Related
AI-Generated Summary
What this means
edb.gov.sg scored 82/100, demonstrating a strong security posture. Minor improvements are noted below.
Critical gaps in: Security Headers. Positive signals: Known Breaches, TLS Configuration, DNS Configuration all passed.
2 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.
How edb.gov.sg compares
Grade distribution across 2599 companies we've scanned. edb.gov.sg scores better than 72% of them.
84
A+
25
A
190
A-
196
B+
75
B
362
B-
129
C+
114
C
330
C-
119
D+
95
D
252
D-
628
F
edb.gov.sg — Grade B- (82/100)
2599 companies scanned
Security checks
Each check inspects a different part of edb.gov.sg's public security setup. Green means healthy, yellow needs attention, red is a problem.
Security Headers
Only 0/5 security headers present. Missing: CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy. This exposes the application to clickjacking, MIME-sniffing, and other client-side attacks.
DMARC / Email Security
Strengths: DMARC policy set to reject (strongest); SPF record present with hard-fail (-all). Issues: No DKIM records found for common selectors (may use non-standard selectors).
DNS Configuration
Strengths: 12 nameservers configured (ns12.gdnsdef.com., a2-65.akam.net., a3-67.akam.net., a8-64.akam.net.); 4 MX records present; DNSSEC enabled; Zone transfers properly restricted.
Known Breaches
No known breaches found in public disclosure databases.
TLS Configuration
TLSv1.3 negotiated with TLS_AES_128_GCM_SHA256 (128-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
HSTS Header
HSTS enabled: max-age=63072000 with includeSubDomains and preload. Meets best-practice configuration.
CVE Exposure
No server software versions detected in HTTP response headers. This is good practice (version hiding) but means CVE exposure cannot be assessed from external signals alone.
Certificate Hygiene
Strengths: Certificate valid, 144 days remaining; Issued by Entrust Limited.
Recommended actions
2 items
Steps to improve edb.gov.sg's security grade, ranked by impact.
1
Strengthen email authentication configuration
Email authentication is partially configured for edb.gov.sg but has gaps. Actions needed: configure DKIM. Until DMARC enforcement is active, spoofed emails may still reach recipients.
Compliance impact
NIST CSFPR.AC-7
Email authentication is a required access control
How to fix this
1
Configure DKIM and publish public key in DNS
2
Verify with: nslookup -type=txt _dmarc.edb.gov.sg
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2
Add missing security headers (CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy)
5 of 5 recommended security headers are missing on edb.gov.sg: CSP, X-Content-Type-Options, 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
How to fix this
1
Add Content-Security-Policy header (start with report-only to avoid breakage)
2
Add: X-Content-Type-Options: nosniff
3
Add: X-Frame-Options: DENY (or SAMEORIGIN if you use iframes)
4
Add: Referrer-Policy: strict-origin-when-cross-origin
5
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
6
Verify with: curl -sI https://edb.gov.sg | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
At a glance
Key data points from the scan.
TLS Version
TLSv1.3
TLSv1.3 negotiated with TLS_AES_128_GCM_SHA256 (128-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
DMARC Policy
p=reject
Strengths: DMARC policy set to reject (strongest); SPF record present with hard-fail (-all). Issues: No DKIM records found for common selectors (may use non-standard selectors).
SPF Record
Present
v=spf1 include:spf2.edb.gov.sg include:gpc.gov.sg include:spf.protection.outlook.com include:amazons
Security Headers
0/5 present
Missing: CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy
HSTS
Enabled
HSTS enabled: max-age=63072000 with includeSubDomains and preload. Meets best-practice configuration.
SSL Certificate
Valid
Strengths: Certificate valid, 144 days remaining; Issued by Entrust Limited.
DNSSEC
Enabled
Strengths: 12 nameservers configured (ns12.gdnsdef.com., a2-65.akam.net., a3-67.akam.net., a8-64.akam.net.); 4 MX records present; DNSSEC enabled; Zone transfers properly restricted.