1und1-mobilfunk.de
1&1 AG
Last scanned Aug 24, 2026, 1:22 PM · 1 view
Overall score
Fair
Summary
Unsere Ansprechpartner der 1&1 AG für Investor Relations und Presseanfragen kümmern sich gerne und schnell um Ihre Anliegen. This website uses Nginx hosted on IONOS-AS - IONOS SE, DE. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores fair (50/100) and performance excellent (90/100). Top issue: Missing canonical link.
Unsere Ansprechpartner der 1&1 AG für Investor Relations und Presseanfragen kümmern sich gerne und schnell um Ihre Anliegen.
- Germany
- Hosted on IONOS-AS - IONOS SE, DE
Top issues to fix
6 issues found · 1 high priority
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-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
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.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
1 broken link on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
1.55 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Unsere Ansprechpartner der 1&1 AG für Investor Relations und Presseanfragen kümmern sich gerne und schnell um Ihre Anliegen.
Meta tags
- Title
- 1&1 AG
- Description
- Unsere Ansprechpartner der 1&1 AG für Investor Relations und Presseanfragen kümmern sich gerne und schnell um Ihre Anliegen.
- Canonical
- Language
- de
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- index,follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- IONOS-AS - IONOS SE, DE
- CDN provider
- —
- IP address
- 212.227.177.50
- ASN
- AS8560 (IONOS-AS - IONOS SE, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.1und1.ag
- Valid from
- Jul 31, 2026
- Valid to
- Feb 14, 2027
- Days until expiry
- 173
- SAN domains
- *.1und1.ag, 1und1.ag
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
12 internal · 2 external · 1 broken
Images
4 total · 0 missing alt
Scripts / Styles
1 scripts · 1 stylesheets
JS / CSS size
13.7 KB · 94.4 KB
Page size
18.6 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://1und1-mobilfunk.de
- Final URL
- https://www.1und1.ag/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.55 s
- HTML size
- 18.6 KB
- Redirect chain
- https://1und1-mobilfunk.de → https://www.1und1.ag/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does 1und1-mobilfunk.de use?
- 1und1-mobilfunk.de is built with Nginx.
- Is 1und1-mobilfunk.de secure (HTTPS)?
- Yes. 1und1-mobilfunk.de uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Feb 14, 2027.
- Who hosts 1und1-mobilfunk.de?
- 1und1-mobilfunk.de is hosted on IONOS-AS - IONOS SE, DE.
- What is 1und1-mobilfunk.de's SEO score?
- 1und1-mobilfunk.de scored 70/100 for SEO in the latest analysis (fair).
- What is 1und1-mobilfunk.de's overall website score?
- 1und1-mobilfunk.de has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card