pragprog.com
Pragmatic Bookshelf: By Developers, For Developers
Last scanned Jul 26, 2026, 5:18 AM
Overall score
Great
Summary
We improve the lives of professional developers. This website uses jQuery. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
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.
Top issues to fix
10 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+4 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
235 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
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.
Meta tags
- Title
- Pragmatic Bookshelf: By Developers, For Developers
- 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.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- 64.23.242.214
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- pragprog.com
- Valid from
- Jul 13, 2026
- Valid to
- Oct 11, 2026
- Days until expiry
- 76
- SAN domains
- *.pragmatic.org, *.pragmaticprogrammer.com, *.pragprog.com, pragmaticprogrammer.com, pragprog.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 6 · H3 3
Links
53 internal · 20 external · 0 broken
Images
14 total · 0 missing alt
Scripts / Styles
8 scripts · 5 stylesheets
JS / CSS size
125 KB · 25.9 KB
Page size
29.2 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://pragprog.com
- Final URL
- https://pragprog.com
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 235 ms
- HTML size
- 29.2 KB
- Redirect chain
- https://pragprog.com
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Frequently asked questions
- What technology does pragprog.com use?
- pragprog.com is built with jQuery.
- Is pragprog.com secure (HTTPS)?
- Yes. pragprog.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 11, 2026.
- Who hosts pragprog.com?
- Hosting provider information for pragprog.com is not available yet.
- What is pragprog.com's SEO score?
- pragprog.com scored 65/100 for SEO in the latest analysis (fair).
- What is pragprog.com's overall website score?
- pragprog.com has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card