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Technical Information

HTTP Status Code	200
HTTP Version	HTTP/1.1
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CDN	Cloudflare
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HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 104.20.40.35
Server Software cloudflare
CDN Cloudflare
Compression gzip
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).

Performance

DNS Lookup	10.8 ms
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Time To First Byte (TTFB)	450.4 ms
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DNS Lookup 10.8 ms
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TLS Handshake 12.5 ms
Time To First Byte (TTFB) 450.4 ms
Content Download 1.8 ms
Total Response Time 452.2 ms

Security

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HTTPS ✔ Enabled
HSTS ✔ max-age=86400; includeSubDomains
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1

SEO Quick Check

Title	Observable Notebooks: Fast data exploration and prototyping
Meta Description	Quickly explore and analyze data, build prototype data visualizations, and collaborate with your team in real-time with live JavaScript notebooks.
Canonical	https://observablehq.com/
Open Graph Image	https://static.observablehq.com/assets/marketing/meta/og-...
Twitter Card	summary_large_image

Title Observable Notebooks: Fast data exploration and prototyping
Meta Description Quickly explore and analyze data, build prototype data visualizations, and collaborate with your team in real-time with live JavaScript notebooks.
Canonical https://observablehq.com/
Open Graph Image https://static.observablehq.com/assets/marketing/meta/og-...
Twitter Card summary_large_image

Detected Technologies

Technology	React Google Analytics Google Tag Manager Cloudflare Node.js Next.js Stripe

Technology React Google Analytics Google Tag Manager Cloudflare Node.js Next.js Stripe

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Og:image

Twitter:card summary_large_image
Next-head-count 21

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