| Strict-Transport-Security | max-age=63072000; includeSubDomains; preload | Good | Declare that a website is only accessible over a secure connection (HTTPS).
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| X-Frame-Options | DENY | Good | Indicate 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 | nosniff | Good | Indicate that the MIME types advertised in the Content-Type headers should be followed and not be changed.
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| Content-Security-Policy | default-src 'none'; media-src *; font-src 'self' *.typekit.net *.cloudfront.net fonts.gstatic.com data:; img-src * data:; script-src 'self' 'unsafe-inline' 'unsafe-eval' substackapi.com boards.greenhouse.io cdn.jsdelivr.net cdn.optimizely.com *.parsely.com connect.facebook.net info.a16z.com munchkin.marketo.net plausible.io px.ads.linkedin.com snap.licdn.com static.ads-twitter.com www.youtube.com script.crazyegg.com www.google-analytics.com www.googletagmanager.com a16z.com blob:; style-src 'unsafe-inline' *.typekit.net fonts.googleapis.com info.a16z.com a16z.com; connect-src *; frame-src 'self' *.loom.com *.cdn.optimizely.com *.simplecast.com gamma.app boards.greenhouse.io www.youtube.com info.a16z.com; base-uri 'none'; form-action 'self' info.a16z.com; frame-ancestors 'self' | Good | Control resources the user agent is allowed to load for a given page.
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| Referrer-Policy | — | Good | Control how much referrer information should be included with requests.
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| Clear-Site-Data | — | Good | Control the data stored by a client browser for their origins.
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| X-Permitted-Cross-Domain-Policies | — | Good | Control 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 | — | New | Allow and deny the use of browser features in a document or iframe.
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| Cross-Origin-Embedder-Policy | — | New | Configure embedding cross-origin resources into the document.
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| Cross-Origin-Opener-Policy | — | New | Ensure a top-level document does not share a browsing context group with cross-origin documents.
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| Cross-Origin-Resource-Policy | — | New | Request that the browser blocks no-cors cross-origin/cross-site requests to the given resource.
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| X-XSS-Protection | 0 | Deprecated | Deprecated. Stops pages from loading when they detect reflected cross-site scripting (XSS) attacks.
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| Feature-Policy | — | Deprecated | Deprecated. Replaced by the Permissions-Policy header.
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| Expect-CT | — | Deprecated | Deprecated. Opt in to reporting and/or enforcement of Certificate Transparency requirements.
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| Public-Key-Pins | — | Deprecated | Deprecated. Allows HTTPS websites to resist impersonation by attackers using mis-issued or otherwise fraudulent certificates.
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