dgnb.de website report
Deutsche Gesellschaft für Nachhaltiges Bauen | DGNB
Last scanned
Overall score
Great
About dgnb.de
dgnb.de is a website. It describes itself as “2007 gegründet, ist die DGNB heute Europas größtes Netzwerk für nachhaltiges Bauen”. It is also on YouTube.
Score profile
Top issues to fix
7 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.
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.
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.
+1 more issue — details in the sections below.
How it compares
dgnb.de scores higher overall than 55% of the 163,243 sites we have scanned.
vs. All scanned sites
163,243 sitesThe dot is this site; the tick is the typical (median) score for the group. The number on the right is the percentile: the share of the group this site scores above.
Technology stack
dgnb.de is built with jQuery and Nginx.
Hosting & DNS
- IP address
- —
- ASN
- —
- IPv6
- Not supported
- HTTP
- HTTP/2
Show DNS record values
TXT record contents are not republished; only their count is shown.
Security
dgnb.de uses TLS 1.3 with a certificate valid for 51 more days and sets 1 of 6 recommended security headers.
Security headers1 of 6 set
- HSTSForces HTTPS
- CSPBlocks injected scripts
- X-Frame-OptionsStops clickjacking
- X-Content-TypeStops MIME sniffing
- Referrer-PolicyLimits URL leakage
- Permissions-PolicyRestricts browser features
TLS certificate
- Names covered
- 2
- Cookies set
- 0
Email security
dgnb.de scores F for email security, with no SPF record and no DMARC policy.
- SPFNot set
No SPF record: anyone can claim to send mail from this domain.
- DMARCNot set
No DMARC policy: forged mail is not told to be rejected.
- MTA-STSNot set
Not published; mail to this domain can be downgraded to plaintext.
- BIMINot set
Not published (optional).
Performance & carbon
dgnb.de scores 75/100 for performance, with an estimated load time of 0.9 s. A visit emits an estimated 0.57 g of CO2 (grade D).
Page weight
- HTML 130 KB
- JavaScript 1.0 MB
- CSS 398 KB
- Est. load
- 867 ms
- Response
- 865 ms
- Scripts / CSS
- 16 / 1
Carbon per visitD
0.57 g CO2 per uncached view
Estimate from the Sustainable Web Design model. HTML, JavaScript and CSS only; images, video and fonts are not measured. Treat it as a lower bound for comparing pages, not an audit.
SEO & accessibility
dgnb.de scores 85/100 for SEO and 100/100 for accessibility, with 3 SEO issues to fix.
Heading structure
One H1: good.
Image alt text
19 images · 0 without alt text · 0 lazy-loaded
Links
- Internal 195
- External 11
- Broken 2
SEO issues3
- Meta description longer than 160 characters
- robots.txt not found
- sitemap.xml not found
Accessibility issues0
No accessibility issues detected.
Technical details
Page metadata, social tags, crawl files and scan information.
Meta tags
- Title
- Deutsche Gesellschaft für Nachhaltiges Bauen | DGNB
- Description
- 2007 gegründet, ist die DGNB heute Europas größtes Netzwerk für nachhaltiges Bauen. Ziel des Vereins ist es, Nachhaltigkeit in der Bau- und Immobilienwirtschaft zu fördern und im Bewusstsein der breiten Öffentlichkeit zu verankern. Mit dem DGNB Zertifizierungssystem hat die unabhängige Non-Profit-Organisation ein Planungs- und Optimierungstool zur Bewertung nachhaltiger Gebäude, Innenräume und Quartiere entwickelt, das dabei hilft, die reale Nachhaltigkeit in Bauprojekten zu erhöhen. Über die Fort- und Weiterbildungsplattform DGNB Akademie wurden zudem bereits mehr als 9.000 Personen in fast 60 Ländern zu Experten für nachhaltiges Bauen qualifiziert.
- Canonical
- https://www.dgnb.de/de/
- Language
- de-DE
- Robots meta
- index,follow
Crawl files
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
Structured data
- Microdata items
- 5
- RDFa items
- 0
Scan
- Final URL
- https://www.dgnb.de/de
- HTTP status
- 200
- Redirects
- https://dgnb.de → https://www.dgnb.de/ → https://www.dgnb.de/de
- Scanned
- Aug 24, 2026, 1:23 PM
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Frequently asked questions about dgnb.de
- What is dgnb.de?
- dgnb.de is a website. It describes itself as “2007 gegründet, ist die DGNB heute Europas größtes Netzwerk für nachhaltiges Bauen”. It is also on YouTube.
- What technology does dgnb.de use?
- dgnb.de is built with jQuery and Nginx.
- Is dgnb.de secure?
- dgnb.de uses TLS 1.3 with a certificate valid for 51 more days and sets 1 of 6 recommended security headers.
- Is dgnb.de protected against email spoofing?
- dgnb.de scores F for email security, with no SPF record and no DMARC policy.
- How does dgnb.de compare with similar sites?
- dgnb.de scores higher overall than 55% of the 163,243 sites we have scanned.
- What is dgnb.de's overall score?
- dgnb.de has an overall SiteGraph score of 83/100, combining SEO (85), performance (75), security (75) and accessibility (100).
Open Graph & Twitter