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Scan complete
C
71/100
github.com
Improved · D → C · +2
Compare
2 critical issues need immediate attention.
18/18
checks
65
passed
finished
Scan timestamps
Created
Jul 18, 2026, 12:24 PM
Started
Jul 18, 2026, 12:24 PM
Finished
Jul 18, 2026, 12:24 PM
Updated
Jul 18, 2026, 12:24 PM
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Findings by severity
83 results
2
Critical
3
High
7
Medium
6
Low
65
Pass
Report coverage
98.7%
21 skipped - these limit completeness.
21 skipped
All
104
Critical
2
High
3
Medium
7
Low
6
Pass
65
Skipped
21
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
5/7 pass
Domain Alignment (DMARC)
DMARC policy quarantines unauthenticated mail
The DMARC policy asks receivers to treat failing mail as suspicious, but does not request full rejection.
Medium
Domain Alignment (DMARC)
DMARC alignment is relaxed
The DMARC record allows relaxed identifier alignment for DKIM or SPF.
Low
Certificate Binding (DANE)
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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)
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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)
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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
6/8 pass
DNS Health (Delegation & Exposure)
SOA serial differs across nameservers
Responding nameservers serve different SOA serial numbers, indicating incomplete or stalled zone propagation.
Medium
DNS Health (Delegation & Exposure)
SOA serial does not use the recommended format
The SOA record is otherwise valid, but the serial number does not follow the recommended YYYYMMDDnn date format.
Low
CAA and Certificate Issuance Surface
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Info
3/6 pass
CAA and Certificate Issuance Surface
Dangling _acme-challenge delegation
The _acme-challenge name delegates ACME validation to a target that no longer resolves, so an attacker who claims that target could obtain a trusted certificate for this domain.
Critical
CAA and Certificate Issuance Surface
Certificate issuance is not pinned
The CAA records authorize a CA but do not restrict issuance to a specific account or validation method.
Low
CAA and Certificate Issuance Surface
No S/MIME issuance policy is published
The domain does not publish an issuemail CAA property, so any CA may issue S/MIME certificates for its email addresses; note that issue and issuewild do not restrict S/MIME issuance.
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%
HTTP Security Headers
Learn how it works
Info
4/7 pass
HTTP Security Headers
Content-Security-Policy has a minor gap
The CSP restricts script execution, but is missing object-src 'none' or base-uri, which narrows (but does not close) two known bypass vectors (legacy plugin objects, <base> tag injection).
Low
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
HTTP Security Headers
Deprecated security headers are present
The response sends one or more deprecated headers (X-XSS-Protection, Expect-CT, or Public-Key-Pins) that modern browsers ignore or that carry their own operational risk (HPKP).
Low
Reputation
100%
DNS Blacklists (RBL)
Learn how it works
Info
4/5 pass
DNS Blacklists (RBL)
IP listed on a secondary blacklist
At least one of the domain's public IP addresses is listed on a secondary DNS blacklist. These lists have narrower enforcement than mainstream lists but a listing still indicates a reputation problem worth investigating.
Medium
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