heizungsdiscount24.de
Heizung und Solar zu Discountpreisen
Last scanned Aug 24, 2026, 1:21 PM
Overall score
Great
Summary
Der Online-Fachhhändler für Heiztechnik von Top Marken zu günstigen Preisen: Wärmepumpen, Heizkörper, Gas- und Ölheizungen, Solar- & Klimatechnik, Photovoltaik & vieles mehr. This website uses Apache behind CloudFront CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing OpenGraph tags.
HeizungsDiscount24 GmbH
Der Online-Fachhhändler für Heiztechnik von Top Marken zu günstigen Preisen: Wärmepumpen, Heizkörper, Gas- und Ölheizungen, Solar- & Klimatechnik, Photovoltaik & vieles mehr.
- Stolzenmorgen 15, Gießen, 35394, DE
Top issues to fix
7 issues found · 2 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 X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
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.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
308 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- Address
- Stolzenmorgen 15, Gießen, 35394, DE
Meta tags
- Title
- Heizung und Solar zu Discountpreisen
- Description
- Ihr Online-Fachhändler für Heizung und Solar - Wir führen Thermen, Kessel und Solaranlagen von Junkers, Wolf, Viessmann, Vaillant, Buderus und mehr
- Canonical
- https://www.heizungsdiscount24.de/
- Language
- de
- Charset
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index,follow,noodp
- Manifest
- https://www.heizungsdiscount24.de/shop/images/appserv/addon/icons/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- CloudFront
- IP address
- 18.66.41.104
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT |
|
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Amazon
- Subject
- heizungsdiscount24.de
- Valid from
- Dec 24, 2025
- Valid to
- Jan 22, 2027
- Days until expiry
- 151
- SAN domains
- heizungsdiscount24.de, www.heizungsdiscount24.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 17 · H3 1
Links
85 internal · 17 external · 0 broken
Images
59 total · 3 missing alt
Scripts / Styles
22 scripts · 4 stylesheets
JS / CSS size
902 KB · 253 KB
Page size
60.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://heizungsdiscount24.de
- Final URL
- https://www.heizungsdiscount24.de/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 307 ms
- HTML size
- 60.5 KB
- Redirect chain
- https://heizungsdiscount24.de → https://www.heizungsdiscount24.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does heizungsdiscount24.de use?
- heizungsdiscount24.de is built with Google Analytics, Google Ads, Apache.
- Is heizungsdiscount24.de secure (HTTPS)?
- Yes. heizungsdiscount24.de uses TLS 1.3 with a certificate issued by Amazon, valid until Jan 22, 2027.
- Who hosts heizungsdiscount24.de?
- Hosting provider information for heizungsdiscount24.de is not available yet.
- What is heizungsdiscount24.de's SEO score?
- heizungsdiscount24.de scored 85/100 for SEO in the latest analysis (great).
- What is heizungsdiscount24.de's overall website score?
- heizungsdiscount24.de has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- What company operates heizungsdiscount24.de?
- heizungsdiscount24.de is operated by HeizungsDiscount24 GmbH. Der Online-Fachhhändler für Heiztechnik von Top Marken zu günstigen Preisen: Wärmepumpen, Heizkörper, Gas- und Ölheizungen, Solar- & Klimatechnik, Photovoltaik & vieles mehr.
OpenGraph & Twitter Card
OpenGraph
Twitter Card