Overview
Findings
Actions
Details
Related
AI-Generated Summary
What this means
manus.im scored 78/100, meeting baseline requirements but with 5 findings that require attention. The vendor can proceed with a remediation timeline agreement.
Critical gaps in: HSTS Header, Security Headers. Positive signals: DMARC / Email Security, TLS Protocol Support, TLS Configuration 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 manus.im compares
Grade distribution across 2598 companies we've scanned. manus.im scores better than 59% of them.
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
manus.im — Grade C+ (78/100)
2598 companies scanned
Security checks
Each check inspects a different part of manus.im's public security setup. Green means healthy, yellow needs attention, red is a problem.
HSTS Header
Strict-Transport-Security header is missing. Connections can be downgraded to HTTP via man-in-the-middle attacks.
Security Headers
1/5 security headers present. Missing: X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy. This exposes the application to clickjacking, MIME-sniffing, and other client-side attacks.
MX Records & Mail Provider
Strengths: Mail handled by Amazon SES/WorkMail; 1 MX record(s) configured. Issues: Only 1 MX record — no failover if primary mail server is unavailable.
DNS CAA Records
Strengths: CAA records configured (4 record(s)); Authorized CAs: pki.goog, amazon.com, letsencrypt.org. Issues: No iodef record — CA violations won't be reported to the domain owner.
DNS Configuration
Strengths: 4 nameservers configured (ns-1248.awsdns-28.org., ns-1915.awsdns-47.co.uk., ns-458.awsdns-57.com., ns-762.awsdns-31.net.); 1 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.
MTA-STS & TLS Reporting
Strengths: MTA-STS enabled with enforce mode (strongest); MX patterns specified: inbound-smtp.us-east-1.amazonaws.com; Policy max_age: 7 days. Issues: No TLSRPT record — TLS delivery failures won't be reported to domain owner.
security.txt (RFC 9116)
No security.txt found. Publishing a security.txt at /.well-known/security.txt is the industry standard (RFC 9116) for vulnerability disclosure policies. Its absence may indicate a less mature security program.
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 (domain may use custom selectors — this is not a confirmed gap).
TLS Protocol Support
Strengths: TLS 1.3 supported; TLS 1.2 supported; TLS 1.3 supported (strongest). Protocol support: TLS 1.3: Yes, TLS 1.2: Yes, TLS 1.1: No, TLS 1.0: No.
TLS Configuration
TLSv1.3 negotiated with TLS_AES_128_GCM_SHA256 (128-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
Known Breaches
No known breaches found in public disclosure databases.
Cookie Security
No cookies set on the homepage response. No cookie security flags to evaluate.
CVE Exposure
Detected technologies: Next.js, Proxy/CDN. (Proxy/CDN detected but excluded from CVE matching — upstream infrastructure). No version information exposed — CVE matching not possible (this is good practice).
Certificate Hygiene
Strengths: Certificate valid, 316 days remaining; Issued by Amazon. Note: Wildcard certificate in use (*.domain) — covers all subdomains. Common practice; worth noting that compromise would affect all subdomains.
Recommended actions
3 items
Steps to improve manus.im's security grade, ranked by impact.
1
Enable HSTS (HTTP Strict Transport Security)
The HSTS header is missing on manus.im. Without it, connections can be downgraded from HTTPS to HTTP via man-in-the-middle attacks. This is a straightforward server configuration change.
Compliance impact
PCI-DSS 4.0Req 6.4.1
Required application security controls
NIST 800-53SC-8
Transmission confidentiality and integrity
How to fix this
1
Add header: Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
2
Verify all subdomains support HTTPS before adding includeSubDomains
3
Test with: curl -sI https://manus.im | grep -i strict
4
Submit to hstspreload.org after confirming the header is correct
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2
Add missing security headers (X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy)
4 of 5 recommended security headers are missing on manus.im: 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: X-Content-Type-Options: nosniff
2
Add: X-Frame-Options: SAMEORIGIN (use DENY only if you never embed your pages in iframes)
3
Add: Referrer-Policy: strict-origin-when-cross-origin
4
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
5
Verify with: curl -sI https://manus.im | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
3
Enable DNSSEC on your domain
Without DNSSEC, DNS responses for manus.im 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 .im TLD
4
Verify: dig +dnssec manus.im
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 (domain may use custom selectors — this is not a confirmed gap).
SPF Record
Present
v=spf1 include:helpscoutemail.com include:mailgun.org include:amazonses.com -all
Security Headers
1/5 present
Missing: X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy
HSTS
Not enabled
Strict-Transport-Security header is missing. Connections can be downgraded to HTTP via man-in-the-middle attacks.
SSL Certificate
Valid
Strengths: Certificate valid, 316 days remaining; Issued by Amazon. Note: Wildcard certificate in use (*.domain) — covers all subdomains. Common practice; worth noting that compromise would affect all subdomains.
DNSSEC
Not enabled
Strengths: 4 nameservers configured (ns-1248.awsdns-28.org., ns-1915.awsdns-47.co.uk., ns-458.awsdns-57.com., ns-762.awsdns-31.net.); 1 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.