dvgw.de website report
DVGW e.V.: Startseite - DVGW Deutscher Verein des Gas- und Wasserfaches
Last scanned
Overall score
Fair
About dvgw.de
dvgw.de is a website. It describes itself as “Der DVGW hat das Ziel, Grundlagen für eine zuverlässige, technisch einwandfreie und sichere Gas- und Wasserversorgung zu liefern”. It is also on LinkedIn, Facebook and Instagram.
Score profile
Top issues to fix
11 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
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.
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.
+5 more issues — details in the sections below.
How it compares
dvgw.de scores higher overall than 33% 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
No technologies were detected in the latest scan.
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
dvgw.de uses TLS 1.3 with a certificate valid for 47 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
dvgw.de scores C for email security, with no SPF record and DMARC policy “reject”.
- SPFNot set
No SPF record: anyone can claim to send mail from this domain.
- DMARCGood
Forged mail is rejected.
- MTA-STSGood
Requires encrypted delivery to this domain's mail servers.
- BIMINot set
Not published (optional).
Performance & carbon
dvgw.de scores 100/100 for performance, with an estimated load time of 0.4 s. A visit emits an estimated 0.09 g of CO2 (grade A+).
Page weight
- HTML 243 KB
- JavaScript 1.6 KB
- CSS 225 B
- Est. load
- 372 ms
- Response
- 368 ms
- Scripts / CSS
- 13 / 2
Carbon per visitA+
0.09 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
dvgw.de scores 55/100 for SEO and 90/100 for accessibility, with 7 SEO issues to fix.
Heading structure
No H1 found.
Image alt text
196 images · 0 without alt text · 10 lazy-loaded
Links
- Internal 225
- External 39
- Broken 7
SEO issues7
- Title longer than 60 characters
- Meta description longer than 160 characters
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues1
- No H1 heading found
Technical details
Page metadata, social tags, crawl files and scan information.
Meta tags
- Title
- DVGW e.V.: Startseite - DVGW Deutscher Verein des Gas- und Wasserfaches
- Description
- Der DVGW hat das Ziel, Grundlagen für eine zuverlässige, technisch einwandfreie und sichere Gas- und Wasserversorgung zu liefern. Er ist ein unabhängiger und neutraler Verein.
- Canonical
- https://www.dvgw.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
No JSON-LD types declared.
- Microdata items
- 0
- RDFa items
- 0
Scan
- Final URL
- https://www.dvgw.de/
- HTTP status
- 200
- Redirects
- https://dvgw.de → https://www.dvgw.de/
- Scanned
- Aug 24, 2026, 1:23 PM
Own dvgw.de? Show your score
Add this badge to your site. It always shows the latest scan.
<a href="https://sitegraph.tech/site/dvgw-de"><img src="https://sitegraph.tech/badge/dvgw-de.svg" alt="dvgw.de on SiteGraph" width="190" height="20" /></a>See something wrong on this report? Request a correction or ask for something to be removed.
Frequently asked questions about dvgw.de
- What is dvgw.de?
- dvgw.de is a website. It describes itself as “Der DVGW hat das Ziel, Grundlagen für eine zuverlässige, technisch einwandfreie und sichere Gas- und Wasserversorgung zu liefern”. It is also on LinkedIn, Facebook and Instagram.
- Is dvgw.de secure?
- dvgw.de uses TLS 1.3 with a certificate valid for 47 more days and sets 1 of 6 recommended security headers.
- Is dvgw.de protected against email spoofing?
- dvgw.de scores C for email security, with no SPF record and DMARC policy “reject”.
- How does dvgw.de compare with similar sites?
- dvgw.de scores higher overall than 33% of the 163,243 sites we have scanned.
- What is dvgw.de's overall score?
- dvgw.de has an overall SiteGraph score of 78/100, combining SEO (55), performance (100), security (75) and accessibility (90).
Open Graph & Twitter