https://hackmd.io/@powerfulnoelle/H1d76u9Hyx

Submitted URL:
https://hackmd.io/@powerfulnoelle/H1d76u9Hyx
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Risks · 0 found

Practices that may pose security risks

Security Headers · 4 found

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

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

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

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

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Content-Security-Policyscript-src 'self' vimeo.com https://gist.github.com www.slideshare.net 'unsafe-eval' https://assets.hackmd.io https://www.google.com https://apis.google.com https://docs.google.com https://accounts.google.com https://www.google.com https://apis.google.com https://docs.google.com https://accounts.google.com https://www.dropbox.com https://www.google-analytics.com https://stats.g.doubleclick.net https://secure.quantserve.com https://rules.quantcount.com https://pixel.quantserve.com https://static.hotjar.com https://script.hotjar.com https://www.googletagmanager.com https://cdn.ravenjs.com https://browser.sentry-cdn.com https://js.stripe.com 'nonce-34747afd-421c-44cc-a34e-1ca44878d70a' 'sha256-EtvSSxRwce5cLeFBZbvZvDrTiRoyoXbWWwvEVciM5Ag=' 'sha256-NZb7w9GYJNUrMEidK01d3/DEtYztrtnXC/dQw7agdY4=' 'sha256-L0TsyAQLAc0koby5DCbFAwFfRs9ZxesA+4xg0QDSrdI=' 'sha256-8HvL1KRq6jEwDkuVgxMDK7Gag1vnT70L0Lfoa1E3YsY=' 'sha256-81acLZNZISnyGYZrSuoYhpzwDTTxi7vC1YM4uNxqWaM=' https://tally.so https://tracks.hackmd.io https://plausible.io; img-src * data: blob:; style-src 'self' 'unsafe-inline' https://assets-cdn.github.com https://github.githubassets.com https://assets.hackmd.io https://www.google.com https://fonts.gstatic.com https://www.google.com https://fonts.gstatic.com; font-src 'self' data: https://public.slidesharecdn.com https://assets.hackmd.io https://script.hotjar.com; object-src *; media-src *; frame-src *; child-src *; connect-src *; base-uri 'none'; form-action 'self' https://www.paypal.com; upgrade-insecure-requestsGoodControl 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-Protection1; mode=blockDeprecatedDeprecated. 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 · 1 found

Requests or resources offending security policies

ViolationTypeInfo
Resource
https://accounts.google.com/gsi/client
Description
Refused to load the stylesheet 'https://accounts.google.com/gsi/style' because it violates the following Content Security Policy directive: "style-src 'self' 'unsafe-inline' https://assets-cdn.github.com https://github.githubassets.com https://assets.hackmd.io https://www.google.com https://fonts.gstatic.com https://www.google.com https://fonts.gstatic.com". Note that 'style-src-elem' was not explicitly set, so 'style-src' is used as a fallback.
Content Security PolicyControls resources the user agent is allowed to load for a given page.

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Certificates · 11 found

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

SubjectIssue dateExpiry date
hackmd.ioMar 6, 2024, 00:00:00Apr 4, 2025, 23:59:59
*.hackmd.ioJul 19, 2024, 00:00:00Aug 16, 2025, 23:59:59
tally.soDec 15, 2024, 23:55:00Mar 16, 2025, 00:52:31
*.google-analytics.comDec 2, 2024, 08:35:56Feb 24, 2025, 08:35:55
*.sentry-cdn.comJun 4, 2024, 18:46:04Jul 6, 2025, 18:46:03
plausible.ioNov 29, 2024, 12:09:56Feb 27, 2025, 12:09:55
accounts.google.comDec 2, 2024, 08:37:47Feb 24, 2025, 08:37:46
*.g.doubleclick.netDec 2, 2024, 08:35:56Feb 24, 2025, 08:35:55
*.google.esDec 2, 2024, 08:38:30Feb 24, 2025, 08:38:29
gravatar.comDec 16, 2024, 09:36:48Mar 16, 2025, 09:36:47