Overview
Findings
Actions
Details
Related
AI-Generated Summary
What this means
mezmo.com scored 88/100, demonstrating a strong security posture. Minor improvements are noted below.
Critical gaps in: Security Headers. Positive signals: Known Breaches, DMARC / Email Security, TLS 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 mezmo.com compares
Grade distribution across 2378 companies we've scanned. mezmo.com scores better than 81% 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
mezmo.com — Grade B+ (88/100)
2378 companies scanned
Security checks
Each check inspects a different part of mezmo.com'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.
DNS Configuration
Strengths: 4 nameservers configured (ns-285.awsdns-35.com., ns-792.awsdns-35.net., ns-1040.awsdns-02.org., ns-1562.awsdns-03.co.uk.); 5 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.
TLS Configuration
TLSv1.3 negotiated with TLS_AES_256_GCM_SHA384 (256-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
DMARC / Email Security
Strengths: DMARC policy set to reject (strongest); SPF record present; DKIM configured (selectors: google, s1, s2, mandrill).
Known Breaches
No known breaches found in public disclosure databases.
HSTS Header
HSTS enabled: max-age=31536000. Missing includeSubDomains. Missing preload directive.
CVE Exposure
Detected technologies: cloudflare. (cloudflare detected but excluded from CVE matching — upstream infrastructure). All detected technologies are upstream CDN/proxy infrastructure. No application-level software versions exposed.
Certificate Hygiene
Strengths: Certificate valid, 48 days remaining; Issued by Google Trust Services.
Recommended actions
2 items
Steps to improve mezmo.com's security grade, ranked by impact.
1
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 mezmo.com: 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://mezmo.com | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
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2
Enable DNSSEC on your domain
Without DNSSEC, DNS responses for mezmo.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 mezmo.com
At a glance
Key data points from the scan.
TLS Version
TLSv1.3
TLSv1.3 negotiated with TLS_AES_256_GCM_SHA384 (256-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; DKIM configured (selectors: google, s1, s2, mandrill).
SPF Record
Present
v=spf1 redirect=mezmo.com.hosted.spf-report.com
Security Headers
0/5 present
Missing: CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy
HSTS
Enabled
HSTS enabled: max-age=31536000. Missing includeSubDomains. Missing preload directive.
SSL Certificate
Valid
Strengths: Certificate valid, 48 days remaining; Issued by Google Trust Services.
DNSSEC
Not enabled
Strengths: 4 nameservers configured (ns-285.awsdns-35.com., ns-792.awsdns-35.net., ns-1040.awsdns-02.org., ns-1562.awsdns-03.co.uk.); 5 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.