o2online.de
Fehler
Last scanned Jul 22, 2026, 8:11 PM · 2 views
Overall score
Fair
Summary
This website is hosted on Cloudflare. SEO is fair (50/100) and accessibility is excellent (90/100). Security scores good (85/100) and performance excellent (90/100). Top issue: Missing meta description.
- United States
- Hosted on Cloudflare
Top issues to fix
9 issues found · 3 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
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 canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+3 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
287 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Meta tags
- Title
- Fehler
- Description
- Canonical
- Language
- de
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, shrink-to-fit=no
- Robots meta
- noindex, nofollow
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 141.101.90.39
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.o2online.de
- Valid from
- Jul 15, 2026
- Valid to
- Oct 13, 2026
- Days until expiry
- 83
- SAN domains
- www.o2online.de, *.www.o2online.de
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 1 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
1 scripts · 0 stylesheets
JS / CSS size
78.7 KB · 226 KB
Page size
305 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://o2online.de
- Final URL
- https://www.o2online.de/
- HTTP status
- 403
- HTTP version
- HTTP/2
- Response time
- 281 ms
- HTML size
- 305 KB
- Redirect chain
- https://o2online.de → https://www.o2online.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does o2online.de use?
- We did not detect any specific technologies for o2online.de in the latest scan.
- Is o2online.de secure (HTTPS)?
- Yes. o2online.de uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 13, 2026.
- Who hosts o2online.de?
- o2online.de is hosted on Cloudflare, behind Cloudflare CDN.
- What is o2online.de's SEO score?
- o2online.de scored 50/100 for SEO in the latest analysis (fair).
- What is o2online.de's overall website score?
- o2online.de has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card