dus.net
SIP-Trunk & Cloud-Telefonanlage: Fax2Mail, HD
Last scanned Aug 5, 2026, 12:00 PM · 9 views
Overall score
Great
Summary
Cloud-Telefonanlage für Zuhause, Unternehmen und unterwegs: Tarife, Leistungen, VoIP-API und sichere VoIP-Infrastruktur der dus.net GmbH. This website uses Apache. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (70/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Cloud-Telefonanlage für Zuhause, Unternehmen und unterwegs: Tarife, Leistungen, VoIP-API und sichere VoIP-Infrastruktur der dus.net GmbH.
Top issues to fix
8 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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
546 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 87
- SEO
- 80
- Security
- 70
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Cloud-Telefonanlage für Zuhause, Unternehmen und unterwegs: Tarife, Leistungen, VoIP-API und sichere VoIP-Infrastruktur der dus.net GmbH.
Contact
Email, phone, and address published on this site's own pages.
- info@dus.net
- Phone
- +4921123704140
Meta tags
- Title
- SIP-Trunk & Cloud-Telefonanlage: Fax2Mail, HD
- Description
- Cloud-Telefonanlage für Zuhause, Unternehmen und unterwegs: Tarife, Leistungen, VoIP-API und sichere VoIP-Infrastruktur der dus.net GmbH.
- Canonical
- https://www.dus.net/de
- Language
- de
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index,follow
- Manifest
- https://www.dus.net/site.webmanifest?v=1
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- 83.125.8.72
- 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
- dus.net
- Valid from
- Jul 26, 2026
- Valid to
- Oct 24, 2026
- Days until expiry
- 80
- SAN domains
- dus.net, mein.dus.net, www.dus.net
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 13 · H3 9
Links
18 internal · 14 external · 1 broken
Images
18 total · 0 missing alt
Scripts / Styles
3 scripts · 3 stylesheets
JS / CSS size
218 KB · 148 KB
Page size
176 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
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://dus.net
- Final URL
- https://www.dus.net/de
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 543 ms
- HTML size
- 176 KB
- Redirect chain
- https://dus.net → https://www.dus.net/ → https://www.dus.net/de
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does dus.net use?
- dus.net is built with Laravel, Google Analytics, Apache.
- Is dus.net secure (HTTPS)?
- Yes. dus.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 24, 2026.
- Who hosts dus.net?
- Hosting provider information for dus.net is not available yet.
- What is dus.net's SEO score?
- dus.net scored 80/100 for SEO in the latest analysis (great).
- What is dus.net's overall website score?
- dus.net has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
- Has dus.net's score changed over time?
- dus.net's overall score has declined by 3 points (from 90 to 87) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card