siedle.com
Manufacturer of intercom systems - Siedle
Last scanned Aug 4, 2026, 2:00 AM · 9 views
Overall score
Fair
Summary
Siedle is one of Europe’s leading manufacturers of intercom systems, providing building and door communication systems made in Germany. 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 (65/100) and performance excellent (90/100). Top issue: Missing canonical link.
Siedle is one of Europe’s leading manufacturers of intercom systems, providing building and door communication systems made in Germany. Find out more now!
- Germany
- Hosted on IONOS-AS - IONOS SE, DE
Top issues to fix
8 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.
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 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.
+2 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
562 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-2 overall since Jul 26, 2026
- Overall
- 78
- SEO
- 70
- Security
- 65
- Performance
- 90
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Siedle is one of Europe’s leading manufacturers of intercom systems, providing building and door communication systems made in Germany. Find out more now!
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Manufacturer of intercom systems - Siedle
- Description
- Siedle is one of Europe’s leading manufacturers of intercom systems, providing building and door communication systems made in Germany. Find out more now!
- Canonical
- Language
- en-GB
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://assets.siedle.com/favicons/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- IONOS-AS - IONOS SE, DE
- CDN provider
- —
- IP address
- 217.160.172.87
- ASN
- AS8560 (IONOS-AS - IONOS SE, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- siedle.com
- Valid from
- Jul 30, 2026
- Valid to
- Oct 28, 2026
- Days until expiry
- 85
- SAN domains
- siedle.com, siedle.de, www.siedle.com, www.siedle.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
26 scripts · 2 stylesheets
JS / CSS size
703 KB · 34.3 KB
Page size
498 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://siedle.com
- Final URL
- https://www.siedle.com/en-gb/home/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 552 ms
- HTML size
- 498 KB
- Redirect chain
- https://siedle.com → https://www.siedle.com/en-gb/home/
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Frequently asked questions
- What technology does siedle.com use?
- siedle.com is built with Google Analytics, Nginx.
- Is siedle.com secure (HTTPS)?
- Yes. siedle.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 28, 2026.
- Who hosts siedle.com?
- siedle.com is hosted on IONOS-AS - IONOS SE, DE.
- What is siedle.com's SEO score?
- siedle.com scored 70/100 for SEO in the latest analysis (fair).
- What is siedle.com's overall website score?
- siedle.com has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
- Has siedle.com's score changed over time?
- siedle.com's overall score has declined by 2 points (from 80 to 78) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card