Overview
Findings
Actions
Details
Related
AI-Generated Summary
What this means
outage.ant.isi.edu scored 68/100, meeting baseline requirements but with 4 findings that require attention. The vendor can proceed with a remediation timeline agreement.
Critical gaps in: Security Headers, DMARC / Email Security. Positive signals: MX Records & Mail Provider, TLS Configuration, TLS Protocol Support all passed.
3 action items identified, including 1 critical. The issues are configuration gaps, not architectural problems. A focused remediation effort of 2–5 days could address all findings.
How outage.ant.isi.edu compares
Grade distribution across 2445 companies we've scanned. outage.ant.isi.edu scores better than 37% of them.
75
A+
24
A
180
A-
187
B+
71
B
342
B-
118
C+
112
C
308
C-
114
D+
93
D
226
D-
595
F
outage.ant.isi.edu — Grade D+ (68/100)
2445 companies scanned
Security checks
Each check inspects a different part of outage.ant.isi.edu's public security setup. Green means healthy, yellow needs attention, red is a problem.
Security Headers
None of the 5 recommended security headers are 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: SPF record present with soft-fail (~all). Issues: No DMARC record found — email spoofing is not prevented; No DKIM records found for common selectors (domain may use custom selectors — this is not a confirmed gap).
MTA-STS & TLS Reporting
Issues: No MTA-STS configured — email in transit is vulnerable to TLS downgrade attacks. Sending servers cannot verify that your mail server requires TLS; No TLSRPT record — TLS delivery failures won't be reported to domain owner.
DNS CAA Records
No CAA records found. Without CAA, any Certificate Authority can issue certificates for this domain. Adding CAA records restricts issuance to authorized CAs only, reducing the risk of misissued certificates.
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.
CVE Exposure
Detected technologies: Apache/2.4.65, PHP/8.4.15. 1 high-severity CVE(s) found (CVSS 7.0–8.9): CVE-2025-58098. Patching recommended.
MX Records & Mail Provider
Strengths: Mail handled by ant.isi.edu; 2 MX record(s) configured; Multiple MX records provide redundancy.
TLS Configuration
TLSv1.3 negotiated with TLS_AES_256_GCM_SHA384 (256-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
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.
Cookie Security
No cookies set on the homepage response. No cookie security flags to evaluate.
HSTS Header
HSTS enabled: max-age=63072000s (730 days). includeSubDomains present. Missing preload directive.
DNS Configuration
Strengths: 3 nameservers configured (ns-w.b.isi.edu., ns-e.b.isi.edu., ns-lax.b.root-servers.org.); 2 MX records present; DNSSEC enabled; Zone transfers properly restricted.
Known Breaches
No known breaches found in public disclosure databases.
Certificate Hygiene
Strengths: Certificate valid, 59 days remaining; Issued by Let's Encrypt; 114 certificates logged in CT.
Recommended actions
3 items
Steps to improve outage.ant.isi.edu's security grade, ranked by impact.
1
Set up email authentication (DMARC, DKIM)
Without email authentication, anyone can send emails that appear to come from outage.ant.isi.edu. This is the most common vector for phishing attacks targeting employees and customers. DMARC, DKIM are not configured.
Compliance impact
NIST CSFPR.AC-7
Email authentication is a required access control
ISO 27001A.13.2.1
Information transfer policies require email security controls
HIPAA§164.312(e)
Transmission security for electronic PHI
How to fix this
1
Add SPF record to DNS: v=spf1 include:_spf.google.com ~all (adjust for your email provider)
2
Configure DKIM signing with your email provider and publish the public key in DNS
3
Add DMARC record: v=DMARC1; p=quarantine; rua=mailto:[email protected]
4
Monitor DMARC reports for 2–4 weeks, then upgrade policy to p=reject
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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 outage.ant.isi.edu: 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 a Content-Security-Policy header. Safe starting value (works with Google Fonts and inline styles/scripts): default-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; script-src 'self' 'unsafe-inline'; upgrade-insecure-requests. Test your site after adding it, then tighten over time by removing 'unsafe-inline'.
2
Add: X-Content-Type-Options: nosniff
3
Add: X-Frame-Options: SAMEORIGIN (use DENY only if you never embed your pages in iframes)
4
Add: Referrer-Policy: strict-origin-when-cross-origin
5
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
6
Verify with: curl -sI https://outage.ant.isi.edu | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
3
Review potential CVE exposure in detected software
Software detected on outage.ant.isi.edu has potential CVE matches. Review the specific CVEs and confirm whether the installed version is affected.
How to fix this
1
Review matched CVEs and confirm installed versions
2
Update software if vulnerable versions are confirmed
3
Consider hiding version information in server headers
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
Not configured
Strengths: SPF record present with soft-fail (~all). Issues: No DMARC record found — email spoofing is not prevented; No DKIM records found for common selectors (domain may use custom selectors — this is not a confirmed gap).
SPF Record
Present
v=spf1 a:ant.isi.edu mx:ant.isi.edu ip4:128.9.28.9 ip6:2001:1878:401::8009:1c09 ~all
Security Headers
0/5 present
Missing: CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy
HSTS
Enabled
HSTS enabled: max-age=63072000s (730 days). includeSubDomains present. Missing preload directive.
SSL Certificate
Valid
Strengths: Certificate valid, 59 days remaining; Issued by Let's Encrypt; 114 certificates logged in CT.
DNSSEC
Enabled
Strengths: 3 nameservers configured (ns-w.b.isi.edu., ns-e.b.isi.edu., ns-lax.b.root-servers.org.); 2 MX records present; DNSSEC enabled; Zone transfers properly restricted.