osn.de
OSN Online Service Nürnberg GmbH | Internetkompetenz seit 1994
Last scanned Aug 4, 2026, 10:00 AM · 10 views
Overall score
Great
Summary
OSN Ihr kompetenter Ansprechpartner für anspruchsvolle Internet-Dienstleistungen, Consulting, Virtualisierung und Outsourcing mit langjähriger Erfahrung und eigenem Datacenter. This website uses Apache hosted on OSN - OSN Online Service Nuernberg GmbH, DE. SEO is fair (70/100) and accessibility is good (85/100). Security scores fair (70/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
OSN Ihr kompetenter Ansprechpartner für anspruchsvolle Internet-Dienstleistungen, Consulting, Virtualisierung und Outsourcing mit langjähriger Erfahrung und eigenem Datacenter
- Germany
- Hosted on OSN - OSN Online Service Nuernberg GmbH, DE
Top issues to fix
10 issues found · 3 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 viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
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.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
251 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
0 overall since Jul 27, 2026
- Overall
- 81
- SEO
- 70
- Security
- 70
- Performance
- 100
- Accessibility
- 85
Organization
Company details published in this site's own structured data.
OSN Ihr kompetenter Ansprechpartner für anspruchsvolle Internet-Dienstleistungen, Consulting, Virtualisierung und Outsourcing mit langjähriger Erfahrung und eigenem Datacenter
Meta tags
- Title
- OSN Online Service Nürnberg GmbH | Internetkompetenz seit 1994
- Description
- OSN Ihr kompetenter Ansprechpartner für anspruchsvolle Internet-Dienstleistungen, Consulting, Virtualisierung und Outsourcing mit langjähriger Erfahrung und eigenem Datacenter
- Canonical
- https://www.osn.de/
- Language
- Charset
- utf-8
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- OSN - OSN Online Service Nuernberg GmbH, DE
- CDN provider
- —
- IP address
- 194.45.27.133
- ASN
- AS8859 (OSN - OSN Online Service Nuernberg GmbH, DE)
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
- osn.de
- Valid from
- Jul 31, 2026
- Valid to
- Oct 29, 2026
- Days until expiry
- 85
- SAN domains
- *.osn.de, osn.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 0
Links
15 internal · 0 external · 0 broken
Images
1 total · 0 missing alt
Scripts / Styles
2 scripts · 1 stylesheets
JS / CSS size
99.9 KB · 23.0 KB
Page size
9.5 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 36
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://osn.de
- Final URL
- https://www.osn.de/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 251 ms
- HTML size
- 9.5 KB
- Redirect chain
- https://osn.de → https://www.osn.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does osn.de use?
- osn.de is built with Apache.
- Is osn.de secure (HTTPS)?
- Yes. osn.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 29, 2026.
- Who hosts osn.de?
- osn.de is hosted on OSN - OSN Online Service Nuernberg GmbH, DE.
- What is osn.de's SEO score?
- osn.de scored 70/100 for SEO in the latest analysis (fair).
- What is osn.de's overall website score?
- osn.de has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
- Has osn.de's score changed over time?
- osn.de's overall score has stayed steady at 81/100 since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card