Overview
Findings
Actions
Details
Related
LynxRadar → Directory → psa.com.sg
F
48 / 100

psa.com.sg

Security report · Scanned February 15, 2026

Checks
8
Passed
3
Warnings
2
Critical
0
AI-Generated Summary
What this means

psa.com.sg scored 48/100 and does not currently meet the minimum security posture threshold. Multiple configuration gaps were identified that require attention before approval.

Positive signals: Known Breaches, CVE Exposure, 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 psa.com.sg compares

Grade distribution across 2598 companies we've scanned. psa.com.sg scores better than 14% of them.

14th percentile
0 Percentile rank 100
83
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
psa.com.sg — Grade F (48/100) 2598 companies scanned
Security checks

Each check inspects a different part of psa.com.sg's public security setup. Green means healthy, yellow needs attention, red is a problem.

DMARC / Email Security
Strengths: DMARC policy set to quarantine; SPF record present with hard-fail (-all). Issues: No DKIM records found for common selectors (may use non-standard selectors).
Needs work
Certificate Hygiene
Issues: Could not retrieve certificate details.
Needs work
TLS Configuration
Could not complete TLS handshake with psa.com.sg:443 — timed out
Skipped
HSTS Header
Could not fetch https://psa.com.sg — connection failed or timed out.
Skipped
Security Headers
Could not fetch https://psa.com.sg — connection failed or timed out.
Skipped
Known Breaches
No known breaches found in public disclosure databases.
Healthy
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.
Healthy
DNS Configuration
Strengths: 8 nameservers configured (iblox9extdns1.psa.com.sg., a14-64.akam.net., a7-64.akam.net., a1-248.akam.net.); 1 MX records present; DNSSEC enabled; Zone transfers properly restricted.
Healthy
Recommended actions
2 items

Steps to improve psa.com.sg's security grade, ranked by impact.

1
Strengthen email authentication configuration
Impact: 2–4 Hours
HIGH
Email authentication is partially configured for psa.com.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.psa.com.sg
2
Review certificate configuration
Impact: 1–2 Hours
LOW
Certificate issues found for psa.com.sg: . These are operational hygiene items, not immediate security risks.
How to fix this
1
Consolidate certificate issuance to 1–2 trusted CAs
At a glance

Key data points from the scan.

TLS Version
Issues detected
Could not complete TLS handshake with psa.com.sg:443 — timed out
DMARC Policy
p=quarantine
Strengths: DMARC policy set to quarantine; 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 mx ip4:203.116.16.167 ip4:203.126.12.179 ip4:203.116.232.66 ip4:128.106.13.68 ip4:203.126.12.
Security Headers
0/0 present
All headers configured.
HSTS
Not enabled
Could not fetch https://psa.com.sg — connection failed or timed out.
SSL Certificate
Issues
Issues: Could not retrieve certificate details.
DNSSEC
Enabled
Strengths: 8 nameservers configured (iblox9extdns1.psa.com.sg., a14-64.akam.net., a7-64.akam.net., a1-248.akam.net.); 1 MX records present; DNSSEC enabled; Zone transfers properly restricted.