https://dmkm.substack.com/

Scan ID:
bba3c949-6303-48b8-baa0-e6fc97bc81deFinished
Submitted URL:
https://dmkm.substack.com/
Report Finished:

Risks · 0 found

Practices that may pose security risks

  • No classification

Security Headers · 2 found

HTTP response headers that can harden the security of a web application

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NameValueSupportInfo
Strict-Transport-Securitymax-age=31536000GoodDeclare that a website is only accessible over a secure connection (HTTPS).

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X-Frame-OptionssameoriginGoodIndicate whether a browser should be allowed to render a page in a <frame>, <iframe>, <embed> or <object>.

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X-Content-Type-Options—GoodIndicate that the MIME types advertised in the Content-Type headers should be followed and not be changed.

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Content-Security-Policy—GoodControl resources the user agent is allowed to load for a given page.

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Referrer-Policy—GoodControl how much referrer information should be included with requests.

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Clear-Site-Data—GoodControl the data stored by a client browser for their origins.

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X-Permitted-Cross-Domain-Policies—GoodControl whether a web client such as Adobe Flash Player or Adobe Acrobat has permission to handle data across domains.

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Permissions-Policy—NewAllow and deny the use of browser features in a document or iframe.

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Cross-Origin-Embedder-Policy—NewConfigure embedding cross-origin resources into the document.

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Cross-Origin-Opener-Policy—NewEnsure a top-level document does not share a browsing context group with cross-origin documents.

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Cross-Origin-Resource-Policy—NewRequest that the browser blocks no-cors cross-origin/cross-site requests to the given resource.

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X-XSS-Protection—DeprecatedDeprecated. Stops pages from loading when they detect reflected cross-site scripting (XSS) attacks.

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Feature-Policy—DeprecatedDeprecated. Replaced by the Permissions-Policy header.

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Expect-CT—DeprecatedDeprecated. Opt in to reporting and/or enforcement of Certificate Transparency requirements.

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Public-Key-Pins—DeprecatedDeprecated. Allows HTTPS websites to resist impersonation by attackers using mis-issued or otherwise fraudulent certificates.

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Security Violations · 0 found

Requests or resources offending security policies

  • None found

Certificates · 8 found

SSL/TLS Certificates enable websites to encrypt transactions between the client and the server and provide server identity verification

SubjectIssue dateExpiry date
substack.comDec 9, 2024, 01:11:05Mar 9, 2025, 01:11:04
substackcdn.comFeb 13, 2024, 00:00:00Mar 13, 2025, 23:59:59
*.sentry-cdn.comJun 4, 2024, 18:46:04Jul 6, 2025, 18:46:03
cloudflareinsights.comNov 1, 2024, 08:16:38Jan 30, 2025, 08:16:37
*.datadoghq-browser-agent.comJul 30, 2024, 00:00:00Aug 3, 2025, 23:59:59
*.gstatic.comDec 2, 2024, 08:36:58Feb 24, 2025, 08:36:57
*.google-analytics.comDec 2, 2024, 08:35:56Feb 24, 2025, 08:35:55
www.google.comDec 2, 2024, 08:37:44Feb 24, 2025, 08:37:43