observablehq.com | Analytics by SecurityHeaders

HTTP Headers report for observablehq.com

Header Name Header Data
HTTP status code 200
Reporting-Endpoints heroku-nel=https://nel.heroku.com/reports?ts=1744035706&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&s=9DBNSIMfRM6ktG4Y2Yr8ylLt0WZderHSnJcqLkbnqjo%3D
Nel {"report_to":"heroku-nel","max_age":3600,"success_fraction":0.005,"failure_fraction":0.05,"response_headers":["Via"]}
X-Powered-By Next.js
Connection keep-alive
Cf-Cache-Status BYPASS
Date Mon, 07 Apr 2025 14:21:47 GMT
Content-Type text/html; charset=utf-8
Etag "s6vug0qwyf2z7p"
Vary Accept-Encoding
Cf-Ray 92ca2c5fce6bb8c4-AMS
Via 1.1 vegur
Server cloudflare
Report-To {"group":"heroku-nel","max_age":3600,"endpoints":[{"url":"https://nel.heroku.com/reports?ts=1744035706&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&s=9DBNSIMfRM6ktG4Y2Yr8ylLt0WZderHSnJcqLkbnqjo%3D"}]}
Content-Security-Policy default-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com https://observablehq.com https://*.static.observableusercontent.com; connect-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com wss://ws.observablehq.com https://connector.observableusercontent.com https://js.stripe.com https://*.ingest.sentry.io https://*.google-analytics.com https://analytics.google.com https://*.analytics.google.com https://stats.g.doubleclick.net/j/collect https://www.googleapis.com https://*.googletagmanager.com https://graph.microsoft.com https://*.clarity.ms https://api.openai.com https://*.contentful.com https://cdp.customer.io https://*.ads.linkedin.com https://cdn.linkedin.oribi.io https://www.redditstatic.com https://pixel-config.reddit.com https://aplo-evnt.com https://observablehq.observablehq.cloud https://*.gist.build; font-src https://observablehq.com https://fonts.gstatic.com; frame-ancestors 'none'; frame-src https://observablehq.com https://observablehq.com/embed/ https://*.static.observableusercontent.com https://js.stripe.com https://www.youtube.com/embed/ https://docs.google.com https://challenges.cloudflare.com data: blob: https://*.gist.build; img-src https://api.observablehq.com https://*.static.observableusercontent.com https://static.observablehq.com https://observablehq.com https://*.githubusercontent.com https://*.stripe.com https://avatars.observableusercontent.com https://avatars-next.observableusercontent.com https://*.google-analytics.com https://www.google.com/ads/ga-audiences https://*.googletagmanager.com https://*.ads.linkedin.com https://*.clarity.ms https://*.bing.com static.observableusercontent.com https://images.ctfassets.net https://alb.reddit.com https://*.amazonaws.com data: blob:; manifest-src 'none'; media-src https://observablehq.com https://static.observablehq.com https://videos.ctfassets.net; object-src 'none'; script-src 'self' 'sha256-ERfeEwC9NC9b9t4L2Qp3/yGGgUmFfGH8pIR8kI04FUM=' 'sha256-UJ7XRVoD2oZRK3RRMLdPrdHA+LguX3UEXAZ6hVbuYIk=' 'sha256-E8fjaxUWJTzw+p0U0obCJnciUlgSrzubZcmiKi7SR6c=' 'sha256-g7o+8EOFBiI0+GgtiBaQ0yy0tWJ7XM5PfA6GFm61bw8=' 'sha256-A0A02KStRku2ZPZESGxLlnLD19pC95AzzPYy9z/Vkzw=' https://static.observablehq.com https://www.googleapis.com https://apis.google.com https://*.googletagmanager.com https://js.stripe.com https://*.clarity.ms https://snap.licdn.com https://www.redditstatic.com https://challenges.cloudflare.com https://assets.apollo.io https://observablehq.observablehq.cloud https://*.gist.build; style-src https://static.observablehq.com https://observablehq.com https://fonts.googleapis.com https://*.gist.build 'unsafe-inline'; worker-src https://observablehq.com
Strict-Transport-Security max-age=86400; includeSubDomains
Cache-Control private, no-cache, no-store, max-age=0, must-revalidate

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By using SecurityHeaders.info, you can quickly identify missing or misconfigured headers and take steps to secure your website, improving both security and user confidence.

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