rheinwerk-verlag.de
Rheinwerk – Der Verlag für IT, Design und Fotografie
Last scanned Aug 4, 2026, 5:00 PM · 13 views
Overall score
Excellent
Summary
Rheinwerk ist der führende Verlag für IT, Design und Fotografie. This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Rheinwerk ist der führende Verlag für IT, Design und Fotografie. Unsere Bücher helfen Einsteigern und Experten bei der Aus- und Weiterbildung.
Top issues to fix
6 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
5 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
256 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 27, 2026
- Overall
- 90
- SEO
- 75
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Rheinwerk ist der führende Verlag für IT, Design und Fotografie. Unsere Bücher helfen Einsteigern und Experten bei der Aus- und Weiterbildung.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Rheinwerk – Der Verlag für IT, Design und Fotografie
- Description
- Rheinwerk ist der führende Verlag für IT, Design und Fotografie. Unsere Bücher helfen Einsteigern und Experten bei der Aus- und Weiterbildung.
- Canonical
- https://www.rheinwerk-verlag.de/
- Language
- de
- 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
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Let's Encrypt
- Subject
- www.rheinwerkverlag.de
- Valid from
- Jun 28, 2026
- Valid to
- Sep 26, 2026
- Days until expiry
- 53
- SAN domains
- booksonline.rheinwerk-verlag.de, booksonline.sap-press.com, distribution-registry.rheinwerk.de, eba.rheinwerk-verlag.de, eba.sap-press.com, galileo-press.de, library.sap-press.com, license.api.galileo-press.de, next-eba.rheinwerk.de, prod.rheinwerk-verlag.de, rds.prod.rheinwerk.de, rds.rheinwerk.de, rheinwerk-verlag.de, rheinwerk.de, rheinwerkverlag.de, sap-press.com, sap-press.de, sappress.com, static.booksonline.rheinwerk-verlag.de, static.eba.rheinwerk-verlag.de, static.eba.sap-press.com, static.next-eba.rheinwerk.de, static.rheinwerk-verlag.de, static.sap-press.com, vierfarben.de, wpbuch.com, www.galileo-press.de, www.rheinwerk-verlag.de, www.rheinwerk.de, www.rheinwerkverlag.de, www.sap-press.com, www.sap-press.de, www.sappress.com, www.vierfarben.de, www.wpbuch.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 11 · H3 59
Links
252 internal · 36 external · 5 broken
Images
95 total · 4 missing alt
Scripts / Styles
15 scripts · 3 stylesheets
JS / CSS size
6.0 KB · 23.9 KB
Page size
229 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- 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://rheinwerk-verlag.de
- Final URL
- https://www.rheinwerk-verlag.de/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 252 ms
- HTML size
- 229 KB
- Redirect chain
- https://rheinwerk-verlag.de → https://www.rheinwerk-verlag.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does rheinwerk-verlag.de use?
- rheinwerk-verlag.de is built with Django, Nginx.
- Is rheinwerk-verlag.de secure (HTTPS)?
- Yes. rheinwerk-verlag.de uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 26, 2026.
- Who hosts rheinwerk-verlag.de?
- Hosting provider information for rheinwerk-verlag.de is not available yet.
- What is rheinwerk-verlag.de's SEO score?
- rheinwerk-verlag.de scored 75/100 for SEO in the latest analysis (fair).
- What is rheinwerk-verlag.de's overall website score?
- rheinwerk-verlag.de has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Has rheinwerk-verlag.de's score changed over time?
- rheinwerk-verlag.de's overall score has declined by 1 point (from 91 to 90) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card