https://mastodon.au/@expressletter

Submitted URL:
https://mastodon.au/@expressletter
Report Finished:

Risks · 0 found

Practices that may pose security risks

  • No classification

Security Headers · 6 found

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

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NameValueSupportInfo
Strict-Transport-Securitymax-age=63072000; includeSubDomainsGoodDeclare that a website is only accessible over a secure connection (HTTPS).

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

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

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Content-Security-Policybase-uri 'none'; default-src 'none'; frame-ancestors 'none'; font-src 'self' https://mastodon.au; img-src 'self' data: blob: https://mastodon.au https://o.mastodon.au; style-src 'self' https://mastodon.au 'nonce-nZC0QRxAp77CaifFocGkWg=='; media-src 'self' data: https://mastodon.au https://o.mastodon.au; manifest-src 'self' https://mastodon.au; form-action 'none'; child-src 'self' blob: https://mastodon.au; worker-src 'self' blob: https://mastodon.au; connect-src 'self' data: blob: https://mastodon.au https://o.mastodon.au wss://stream.mastodon.au; script-src 'self' https://mastodon.au 'wasm-unsafe-eval'; frame-src 'self' https:GoodControl resources the user agent is allowed to load for a given page.

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Referrer-Policysame-originGoodControl how much referrer information should be included with requests.

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Clear-Site-DataGoodControl the data stored by a client browser for their origins.

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

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Permissions-PolicyNewAllow and deny the use of browser features in a document or iframe.

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Cross-Origin-Embedder-PolicyNewConfigure embedding cross-origin resources into the document.

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

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

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X-XSS-Protection0DeprecatedDeprecated. Stops pages from loading when they detect reflected cross-site scripting (XSS) attacks.

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Feature-PolicyDeprecatedDeprecated. Replaced by the Permissions-Policy header.

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Expect-CTDeprecatedDeprecated. Opt in to reporting and/or enforcement of Certificate Transparency requirements.

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Public-Key-PinsDeprecatedDeprecated. 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 · 1 found

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

SubjectIssue dateExpiry date
mastodon.auNov 28, 2024, 01:53:48Feb 26, 2025, 01:53:47