Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 64.23.242.214 |
| Server Software | we-prefer-the-term-willing-assistant |
|
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). |
|
ℹ 🔵 No Compression | The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 64.23.242.214
Server Software we-prefer-the-term-willing-assistant
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).
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Performance
| DNS Lookup | 1.9 ms |
| TCP Connect | 146 ms |
| TLS Handshake | 150 ms |
| Time To First Byte (TTFB) | 583.9 ms |
| Content Download | 0.1 ms |
| Total Response Time | 584 ms |
DNS Lookup 1.9 ms
TCP Connect 146 ms
TLS Handshake 150 ms
Time To First Byte (TTFB) 583.9 ms
Content Download 0.1 ms
Total Response Time 584 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 | Pragmatic Bookshelf: By Developers, For Developers |
| Meta Description | We improve the lives of professional developers. We create timely, practical books on classic and cutting-edge topics to help you learn and practice your craft, and accelerate your career. Come learn with us. |
Title Pragmatic Bookshelf: By Developers, For Developers
Meta Description We improve the lives of professional developers. We create timely, practical books on classic and cutting-edge topics to help you learn and practice your craft, and accelerate your career. Come learn with us.
Detected Technologies
| Technology | Google Analytics Google Tag Manager Cloudflare Node.js |
Technology Google Analytics Google Tag Manager Cloudflare Node.js
HTTP Headers
| Date
| Thu, 23 Jul 2026 12:16:10 GMT |
| Content-Type
| text/html; charset=utf-8 |
| Content-Length
| 29977 |
| Last-Modified
| Thu, 23 Jul 2026 01:23:36 GMT |
| Connection
| keep-alive |
| ETag
| "6a616d18-7519" |
| Server
| we-prefer-the-term-willing-assistant |
| Accept-Ranges
| bytes |
Meta Tags
| Generator | Hugo 0.144.0 |
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width, initial-scale=1 |
| Description | We improve the lives of professional developers. We create timely, practical books on classic and cutting-edge topics to help you learn and practice your craft, and accelerate your career. Come learn with us. |
| Keywords | software development project management pragmatic dave thomas pragdave agility books free learn career |
Date Thu, 23 Jul 2026 12:16:10 GMT
Content-Type text/html; charset=utf-8
Content-Length 29977
Last-Modified Thu, 23 Jul 2026 01:23:36 GMT
Connection keep-alive
ETag "6a616d18-7519"
Server we-prefer-the-term-willing-assistant
Accept-Ranges bytes
