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Scan complete
D
65/100
f-net.pl
1 critical issue needs immediate attention.
16/16
checks
49
passed
finished
Scan timestamps
Created
Jul 17, 2026, 12:44 PM
Started
Jul 17, 2026, 12:44 PM
Finished
Jul 17, 2026, 12:45 PM
Updated
Jul 17, 2026, 12:44 PM
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Findings by severity
66 results
1
Critical
8
High
6
Medium
2
Low
49
Pass
Report coverage
98.52%
29 skipped - these limit completeness.
29 skipped
All
95
Critical
1
High
8
Medium
6
Low
2
Pass
49
Skipped
29
Email
96%
Sender Authentication (SPF)
Learn how it works
Info
6/7 pass
Sender Authentication (SPF)
SPF policy does not use strict fail mode
The SPF policy does not fully reject unauthorized senders.
Medium
Domain Alignment (DMARC)
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Info
6/7 pass
Domain Alignment (DMARC)
DMARC alignment is relaxed
The DMARC record allows relaxed identifier alignment for DKIM or SPF.
Low
Certificate Binding (DANE)
Learn how it works
Info
1/5 pass
Certificate Binding (DANE)
No MX host TLSA zone is protected by DNSSEC
None of the MX hosts have DNSSEC on their TLSA lookup zones. DANE SMTP cannot function without DNSSEC, as sending servers will ignore TLSA records from unsigned zones.
Critical
Transport Policy (MTA-STS)
Learn how it works
Info
1/6 pass
Transport Policy (MTA-STS)
MTA-STS DNS record is missing
The domain does not publish an MTA-STS TXT record, so sending servers cannot discover or enforce an MTA-STS policy.
High
TLS Reporting (TLS-RPT)
Learn how it works
Info
1/4 pass
TLS Reporting (TLS-RPT)
No TLS-RPT record found
The domain does not publish a TLS-RPT record. Sending servers cannot report TLS errors to this domain.
High
DNS
100%
DNS Integrity (DNSSEC)
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Info
0/7 pass
DNS Integrity (DNSSEC)
DNSSEC is not enabled
The parent zone does not publish a DS record for this domain.
Medium
DNS Health (Delegation & Exposure)
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Info
7/8 pass
DNS Health (Delegation & Exposure)
Zone transfer is publicly allowed
At least one authoritative nameserver allows an unauthenticated AXFR zone transfer, leaking the entire zone contents including every subdomain.
High
CAA and Certificate Issuance Surface
Learn how it works
Info
1/6 pass
CAA and Certificate Issuance Surface
No CAA record is published
The domain does not publish a CAA record, so any publicly trusted certificate authority may issue certificates for it after standard validation.
Low
TLS
100%
TLS Configuration
Learn how it works
Info
4/6 pass
TLS Configuration
Cipher suites without forward secrecy accepted
The server accepts one or more cipher suites using static RSA or static (EC)DH key exchange. If the server's private key is ever compromised, an attacker with recorded traffic can decrypt past sessions negotiated with these cipher suites.
Medium
TLS Configuration
Weak elliptic curve accepted for key exchange
The server negotiates an elliptic curve below 256 bits for at least one ECDHE cipher suite. Weak curves reduce the effective security margin of the key exchange well below modern standards.
High
Web
100%
Disclosure Policy (security.txt)
Learn how it works
Info
0/4 pass
Disclosure Policy (security.txt)
security.txt is not present or not usable
The domain does not publish a usable security.txt file. Either both /.well-known/security.txt and /security.txt returned no file (404/401/403/410), or the location responded with HTTP 200 but non-text/plain content (typically an application page) or a body that is not valid UTF-8.
Medium
HTTP Security Headers
Learn how it works
Info
1/7 pass
HTTP Security Headers
HSTS is not enforced
The site does not send a usable Strict-Transport-Security header, so browsers do not automatically upgrade future requests to HTTPS.
High
HTTP Security Headers
Content-Security-Policy is not enforced
The site does not send an enforced Content-Security-Policy header, leaving no restriction on script execution, framing, or resource loading beyond what other headers provide.
High
HTTP Security Headers
Clickjacking protection is missing
The site does not restrict framing through CSP frame-ancestors or a usable X-Frame-Options value, so it can be embedded in a frame on any origin.
High
HTTP Security Headers
MIME sniffing is not disabled
The site does not send X-Content-Type-Options: nosniff, so browsers may MIME-sniff a response and interpret it as a different, potentially executable content type.
High
HTTP Security Headers
Referrer-Policy is not declared
The site does not send a Referrer-Policy header. Modern browsers default to a reasonably safe behavior, but the site does not explicitly guarantee it.
Medium
HTTP Security Headers
Permissions-Policy is missing or ineffective
The site either does not send a Permissions-Policy header, or the header only lists directives with a wildcard allowlist that does not restrict anything.
Medium
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