herzstiftung.de

Deutsche Herzstiftung e.V.

Last scanned Jul 26, 2026, 3:19 PM

85

Overall score

Great

Summary

Die Deutsche Herzstiftung ist die größte, gemeinnützige und unabhängige Anlaufstelle für Patienten und Interessierte im Bereich der Herzerkrankungen. This website uses Drupal hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance fair (70/100). Top issue: No structured data (JSON-LD) found.

Die Deutsche Herzstiftung ist die größte, gemeinnützige und unabhängige Anlaufstelle für Patienten und Interessierte im Bereich der Herzerkrankungen.

United States

Hosted on Cloudflare

Top issues to fix

4 issues found · 3 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Slow estimated load (10.9s)
Performance
Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

90

SEO

1 issue(s) found

70

Performance

10.89 s

80

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Die Deutsche Herzstiftung ist die größte, gemeinnützige und unabhängige Anlaufstelle für Patienten und Interessierte im Bereich der Herzerkrankungen.

Contact

Email, phone, and address published on this site's own pages.

Phone: 069 955128-400

Meta tags

Title: Deutsche Herzstiftung e.V.
Description: Die Deutsche Herzstiftung ist die größte, gemeinnützige und unabhängige Anlaufstelle für Patienten und Interessierte im Bereich der Herzerkrankungen.
Canonical: https://herzstiftung.de/
Language: de
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta: index, follow
Manifest

Technologies

Detected frameworks, languages, and tools.

Drupal jQuery Cloudflare Analytics

Hosting & CDN

Hosting provider: Cloudflare
CDN provider: Cloudflare
IP address: 104.20.33.16
ASN: AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

Type	Value
A	104.20.33.16 172.66.174.166
AAAA	2606:4700:10::ac42:aea6 2606:4700:10::6814:2110
MX	herzstiftung-de.mail.protection.outlook.com
TXT	—
NS	chip.ns.cloudflare.com venus.ns.cloudflare.com
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: herzstiftung.de
Valid from: Jul 25, 2026
Valid to: Oct 23, 2026
Days until expiry: 88
SAN domains: herzstiftung.de, *.herzstiftung.de

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 16 · H3 0

Links

539 internal · 4 external · 0 broken

Images

16 total · 0 missing alt

Scripts / Styles

10 scripts · 2 stylesheets

JS / CSS size

695 KB · 0 B

Page size

459 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 37
sitemap.xml: Found
URLs in sitemap: 1575

SEO issues

No structured data (JSON-LD) found

Scan details

Requested URL: https://herzstiftung.de
Final URL: https://herzstiftung.de
HTTP status: 200
HTTP version: HTTP/2
Response time: 10.88 s
HTML size: 459 KB
Redirect chain: https://herzstiftung.de

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Frequently asked questions

What technology does herzstiftung.de use?: herzstiftung.de is built with Drupal, jQuery, Cloudflare Analytics.
Is herzstiftung.de secure (HTTPS)?: Yes. herzstiftung.de uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 23, 2026.
Who hosts herzstiftung.de?: herzstiftung.de is hosted on Cloudflare, behind Cloudflare CDN.
What is herzstiftung.de's SEO score?: herzstiftung.de scored 90/100 for SEO in the latest analysis (excellent).
What is herzstiftung.de's overall website score?: herzstiftung.de has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.