Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.16.151.108 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 104.16.151.108
Server Software cloudflare
CDN Cloudflare
Compression gzip
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 22.9 ms |
| TCP Connect | 25 ms |
| TLS Handshake | 9.4 ms |
| Time To First Byte (TTFB) | 63.2 ms |
| Content Download | 0.8 ms |
| Total Response Time | 64 ms |
DNS Lookup 22.9 ms
TCP Connect 25 ms
TLS Handshake 9.4 ms
Time To First Byte (TTFB) 63.2 ms
Content Download 0.8 ms
Total Response Time 64 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Author of Deep Work, Study Hacks Blog - Cal Newport |
| Meta Description | Official website of Georgetown Professor Cal Newport, author of the Study Hacks blog, Deep Work, and other New York Times bestselling books. |
| Canonical | https://calnewport.com/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Title | Author of Deep Work, Study Hacks Blog - Cal Newport |
| Open Graph Description | Official website of Georgetown Professor Cal Newport, author of the Study Hacks blog, Deep Work, and other New York Times bestselling books. |
| Open Graph Image | https://calnewport.com/wp-content/uploads/2024/05/maincal... |
| Twitter Card | summary_large_image |
Title Author of Deep Work, Study Hacks Blog - Cal Newport Meta Description Official website of Georgetown Professor Cal Newport, author of the Study Hacks blog, Deep Work, and other New York Times bestselling books. Canonical https://calnewport.com/ Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 Open Graph Title Author of Deep Work, Study Hacks Blog - Cal Newport Open Graph Description Official website of Georgetown Professor Cal Newport, author of the Study Hacks blog, Deep Work, and other New York Times bestselling books. Open Graph Image https://calnewport.com/wp-content/uploads/2024/05/maincal... Twitter Card summary_large_image Detected Technologies
| Technology | WordPress jQuery Google Analytics Google Tag Manager Cloudflare PHP |
Technology WordPress jQuery Google Analytics Google Tag Manager Cloudflare PHP
HTTP Headers
| Date
| Mon, 31 Aug 2026 12:35:33 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Server
| cloudflare |
| Vary
| Accept-Encoding |
| Set-cookie
| __cf_bm=W0zDasioEnhVxBBlQIVDT410Tj3XOVU8IZ90YX4oQBM-1788179733.3657067-1.0.1.1-JOYTM.ixdRsAJmTYcF._FwL6VcRyE2qO0kJ8QWpP9OTI5r4xsLcWJv72q85UwCBnsrCpHVtSwIUZMybL48GU0LgBzy35tjNFrAfn5RSQETclAjFePaFc79eaXRFqJ8ZY; HttpOnly; SameSite=None; Secure; Path=/; Domain=calnewport.com; Expires=Mon, 31 Aug 2026 13:05:33 GMT |
| X-ua-compatible
| IE=edge |
| Cache-control
| public, max-age=0, s-maxage=2592000 |
| Age
| 28951 |
| Last-modified
| Mon, 31 Aug 2026 04:47:05 GMT |
| Cf-cache-status
| HIT |
| Content-encoding
| gzip |
| Cf-ray
| a33c13658907dec7-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Robots | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Viewport | width=device-width, initial-scale=1 |
| Description | Official website of Georgetown Professor Cal Newport, author of the Study Hacks blog, Deep Work, and other New York Times bestselling books. |
| Article:modified_time | 2025-07-03T14:23:48+00:00 |
| Msapplication-TileImage |  |
Date Mon, 31 Aug 2026 12:35:33 GMT
Content-type text/html; charset=UTF-8
Server cloudflare
Vary Accept-Encoding
Set-cookie __cf_bm=W0zDasioEnhVxBBlQIVDT410Tj3XOVU8IZ90YX4oQBM-1788179733.3657067-1.0.1.1-JOYTM.ixdRsAJmTYcF._FwL6VcRyE2qO0kJ8QWpP9OTI5r4xsLcWJv72q85UwCBnsrCpHVtSwIUZMybL48GU0LgBzy35tjNFrAfn5RSQETclAjFePaFc79eaXRFqJ8ZY; HttpOnly; SameSite=None; Secure; Path=/; Domain=calnewport.com; Expires=Mon, 31 Aug 2026 13:05:33 GMT
X-ua-compatible IE=edge
Cache-control public, max-age=0, s-maxage=2592000
Age 28951
Last-modified Mon, 31 Aug 2026 04:47:05 GMT
Cf-cache-status HIT
Content-encoding gzip
Cf-ray a33c13658907dec7-CDG
Alt-svc h3=":443"; ma=86400
