Overview
Findings
Actions
Details
Related
AI-Generated Summary
What this means
coub.com scored 82/100, demonstrating a strong security posture. Minor improvements are noted below.
Positive signals: Known Breaches, DMARC / Email Security, 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.
How coub.com compares
Grade distribution across 2378 companies we've scanned. coub.com scores better than 72% of them.
71
A+
22
A
180
A-
181
B+
69
B
333
B-
111
C+
111
C
295
C-
110
D+
92
D
216
D-
587
F
coub.com — Grade B- (82/100)
2378 companies scanned
Security checks
Each check inspects a different part of coub.com's public security setup. Green means healthy, yellow needs attention, red is a problem.
DNS Configuration
Strengths: 4 nameservers configured (ns-189.awsdns-23.com., ns-762.awsdns-31.net., ns-1316.awsdns-36.org., ns-1712.awsdns-22.co.uk.); 7 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.
TLS Configuration
TLSv1.2 negotiated. Issues: TLS 1.2 negotiated (1.3 preferred).
Security Headers
3/5 security headers present. Missing: CSP, Permissions-Policy.
Known Breaches
No known breaches found in public disclosure databases.
DMARC / Email Security
Strengths: DMARC policy set to quarantine; SPF record present with soft-fail (~all); DKIM configured (selectors: google, s1, s2, k1). Issues: DMARC has no aggregate report URI (rua).
HSTS Header
HSTS enabled: max-age=63072000. includeSubDomains present. Missing preload directive.
CVE Exposure
Detected technologies: nginx. No version information exposed — CVE matching not possible (this is good practice).
Certificate Hygiene
Strengths: Certificate valid, 44 days remaining; Issued by Let's Encrypt.
Recommended actions
3 items
Steps to improve coub.com's security grade, ranked by impact.
1
Enable DNSSEC on your domain
Without DNSSEC, DNS responses for coub.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
How to fix this
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 coub.com
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2
Upgrade to TLS 1.3
coub.com negotiated TLSv1.2. TLS 1.2 is still compliant under all major security frameworks and is not a vulnerability. TLS 1.3 offers faster handshakes and removes legacy cipher negotiation. This is a best-practice improvement, not a compliance gap.
How to fix this
1
Update web server config to prefer TLS 1.3 (nginx: ssl_protocols TLSv1.2 TLSv1.3)
2
Verify: openssl s_client -connect coub.com:443 -tls1_3
3
Add optional security headers (CSP, Permissions-Policy)
coub.com has most security headers configured. Missing: CSP, Permissions-Policy. These are best-practice additions that reduce the attack surface for client-side vulnerabilities.
How to fix this
1
Add Content-Security-Policy header (start with report-only to avoid breakage)
2
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
3
Verify with: curl -sI https://coub.com | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
At a glance
Key data points from the scan.
TLS Version
TLSv1.2
TLSv1.2 negotiated. Issues: TLS 1.2 negotiated (1.3 preferred).
DMARC Policy
p=quarantine
Strengths: DMARC policy set to quarantine; SPF record present with soft-fail (~all); DKIM configured (selectors: google, s1, s2, k1). Issues: DMARC has no aggregate report URI (rua).
SPF Record
Present
v=spf1 ip4:212.41.12.227 include:_spf.google.com include:email.freshdesk.com ~all
Security Headers
3/5 present
Missing: CSP, Permissions-Policy
HSTS
Enabled
HSTS enabled: max-age=63072000. includeSubDomains present. Missing preload directive.
SSL Certificate
Valid
Strengths: Certificate valid, 44 days remaining; Issued by Let's Encrypt.
DNSSEC
Not enabled
Strengths: 4 nameservers configured (ns-189.awsdns-23.com., ns-762.awsdns-31.net., ns-1316.awsdns-36.org., ns-1712.awsdns-22.co.uk.); 7 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.