3u.net
3U HOLDING AG: Erfolg in Digitalisierung, Onlinehandel & Erneuerbaren Energien
Last scanned Aug 5, 2026, 12:00 PM · 75 views
Overall score
Excellent
Summary
3U HOLDING AG investiert in ITK, erneuerbare Energien und SHK. This website uses WordPress hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
3U HOLDING AG investiert in ITK, erneuerbare Energien und SHK. Fokus auf E-Commerce und nachhaltiges Wachstum in Deutschland und Europa.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
3 issues found
2 cookies 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.
1 broken link on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
1 issue(s) found
Performance
569 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
0 overall since Jul 26, 2026
- Overall
- 99
- SEO
- 95
- Security
- 100
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
3U HOLDING AG investiert in ITK, erneuerbare Energien und SHK. Fokus auf E-Commerce und nachhaltiges Wachstum in Deutschland und Europa.
Contact
Email, phone, and address published on this site's own pages.
- ir@3u.net
Meta tags
- Title
- 3U HOLDING AG: Erfolg in Digitalisierung, Onlinehandel & Erneuerbaren Energien
- Description
- 3U HOLDING AG investiert in ITK, erneuerbare Energien und SHK. Fokus auf E-Commerce und nachhaltiges Wachstum in Deutschland und Europa.
- Canonical
- https://www.3u.net/
- Language
- de-DE
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 78.47.62.47
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert Inc
- Subject
- 3u.net
- Valid from
- Apr 15, 2026
- Valid to
- Oct 30, 2026
- Days until expiry
- 86
- SAN domains
- 3u.net, www.3u.net
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 5 · H3 10
Links
53 internal · 13 external · 1 broken
Images
12 total · 0 missing alt
Scripts / Styles
61 scripts · 55 stylesheets
JS / CSS size
631 KB · 210 KB
Page size
103 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 49
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Title longer than 60 characters
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://3u.net
- Final URL
- https://www.3u.net/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 567 ms
- HTML size
- 103 KB
- Redirect chain
- https://3u.net → https://www.3u.net/
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Frequently asked questions
- What technology does 3u.net use?
- 3u.net is built with PHP, WordPress, jQuery, Google Analytics, Apache.
- Is 3u.net secure (HTTPS)?
- Yes. 3u.net uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Oct 30, 2026.
- Who hosts 3u.net?
- 3u.net is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is 3u.net's SEO score?
- 3u.net scored 95/100 for SEO in the latest analysis (excellent).
- What is 3u.net's overall website score?
- 3u.net has an overall SiteGraph score of 99/100, combining SEO, performance, security, and accessibility.
- Has 3u.net's score changed over time?
- 3u.net's overall score has stayed steady at 99/100 since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card