duit.de website report
Duisburger Versorgungs- und Verkehrsgesellschaft mbH - https://www.dvv.de/
Last scanned
Overall score
Great
About duit.de
dvv.de is a website. It describes itself as “Duisburgs Partner in Mobilität, Versorgung und Services”.
Score profile
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-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+4 more issues — details in the sections below.
How it compares
duit.de scores higher overall than 50% 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
duit.de is built with jQuery.
Libraries (1)
Hosting & DNS
- IP address
- —
- ASN
- —
- IPv6
- Not supported
- HTTP
- HTTP/1.1
Show DNS record values
TXT record contents are not republished; only their count is shown.
Security
duit.de uses TLS 1.3 with a certificate valid for 162 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
- 1
Email security
duit.de scores C for email security, with SPF and DMARC policy “quarantine”.
- SPFWeak
Marks unlisted senders as suspicious (~all) but does not reject them.
- DMARCWeak
Forged mail is sent to spam.
- MTA-STSNot set
Not published; mail to this domain can be downgraded to plaintext.
- BIMINot set
Not published (optional).
Performance & carbon
duit.de scores 100/100 for performance, with an estimated load time of 0.3 s. A visit emits an estimated 0.16 g of CO2 (grade A).
Page weight
- HTML 178 KB
- JavaScript 251 KB
- CSS 5.1 KB
- Est. load
- 298 ms
- Response
- 295 ms
- Scripts / CSS
- 24 / 7
Carbon per visitA
0.16 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
duit.de scores 65/100 for SEO and 100/100 for accessibility, with 6 SEO issues to fix.
Heading structure
5 H1s; one is the convention.
Image alt text
23 images · 0 without alt text · 20 lazy-loaded
Links
- Internal 17
- External 27
SEO issues6
- Title longer than 60 characters
- Meta description longer than 160 characters
- Multiple H1 headings found
- No structured data (JSON-LD) found
- 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
- Duisburger Versorgungs- und Verkehrsgesellschaft mbH - https://www.dvv.de/
- Description
- Duisburgs Partner in Mobilität, Versorgung und Services. Auf der DVV-Webseite gibt es alle Informationen rund um die Holding, die Tochtergesellschaften, Karriere bei der DVV und Stellenangebote für Duisburg.
- Canonical
- https://www.dvv.de/
- Language
- de
- Robots meta
- index,follow
Crawl files
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
Structured data
No JSON-LD types declared.
- Microdata items
- 0
- RDFa items
- 0
Scan
- Final URL
- https://www.dvv.de/
- HTTP status
- 200
- Redirects
- https://duit.de → https://www.dvv.de/
- Scanned
- Aug 24, 2026, 1:23 PM
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Frequently asked questions about duit.de
- What is duit.de?
- dvv.de is a website. It describes itself as “Duisburgs Partner in Mobilität, Versorgung und Services”.
- What technology does duit.de use?
- duit.de is built with jQuery.
- Is duit.de secure?
- duit.de uses TLS 1.3 with a certificate valid for 162 more days and sets 1 of 6 recommended security headers.
- Is duit.de protected against email spoofing?
- duit.de scores C for email security, with SPF and DMARC policy “quarantine”.
- How does duit.de compare with similar sites?
- duit.de scores higher overall than 50% of the 163,243 sites we have scanned.
- What is duit.de's overall score?
- duit.de has an overall SiteGraph score of 82/100, combining SEO (65), performance (100), security (70) and accessibility (100).
Open Graph & Twitter