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check24.de

CHECK24 | Das Vergleichsportal

Last scanned Jul 29, 2026, 1:00 PM · 6 views

80

Overall score

Great

Summary

CHECK24 - Das Vergleichsportal: Sparen Sie mit den Vergleichsrechnern für Versicherungen, Kredite, Energie, Internet, Reisen, Flüge und mehr. This website uses Nginx. SEO is fair (70/100) and accessibility is good (75/100). Security scores good (85/100) and performance excellent (90/100). Top issue: No H1 heading found.

CHECK24 - Das Vergleichsportal: Sparen Sie mit den Vergleichsrechnern für Versicherungen, Kredite, Energie, Internet, Reisen, Flüge und mehr.

Top issues to fix

9 issues found · 1 high priority

  • No H1 heading found

    SEO

    Add 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

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 3 cookies without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

+3 more issues — details in the sections below.

70

SEO

4 issue(s) found

90

Performance

440 ms

85

Security

HTTPS & header checks

75

Accessibility

2 issue(s) found

Score history

-2 overall since Jul 18, 2026

Overall
80
SEO
70
Security
85
Performance
90
Accessibility
75

Organization

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

CHECK24 - Das Vergleichsportal: Sparen Sie mit den Vergleichsrechnern für Versicherungen, Kredite, Energie, Internet, Reisen, Flüge und mehr.

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Meta tags

Title
CHECK24 | Das Vergleichsportal
Description
CHECK24 - Das Vergleichsportal: Sparen Sie mit den Vergleichsrechnern für Versicherungen, Kredite, Energie, Internet, Reisen, Flüge und mehr.
Canonical
https://www.check24.de
Language
de
Charset
UTF-8
Viewport
width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no
Robots meta
index, follow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
CHECK24 | Das Vergleichsportal
og:description
CHECK24 - Das Vergleichsportal: Sparen Sie mit den Vergleichsrechnern für Versicherungen, Kredite, Energie, Internet, Reisen, Flüge und mehr.
og:type
website
og:url
https://www.check24.de

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
ZeroSSL GmbH
Subject
www.check24.de
Valid from
Jul 14, 2026
Valid to
Oct 12, 2026
Days until expiry
75
SAN domains
www.check24.de

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyEnabled
  • Permissions-PolicyMissing

Compression: gzip · 3 cookie(s) observed

Content & assets

Headings

H1 0 · H2 3 · H3 13

Links

15 internal · 21 external · 20 broken

Images

4 total · 1 missing alt

Scripts / Styles

9 scripts · 3 stylesheets

JS / CSS size

452 KB · 230 KB

Page size

880 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • No H1 heading found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • More than 20% of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://check24.de
Final URL
https://www.check24.de/
HTTP status
200
HTTP version
HTTP/2
Response time
422 ms
HTML size
880 KB
Redirect chain
https://check24.de → https://www.check24.de/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does check24.de use?
check24.de is built with Nginx.
Is check24.de secure (HTTPS)?
Yes. check24.de uses TLS 1.3 with a certificate issued by ZeroSSL GmbH, valid until Oct 12, 2026.
Who hosts check24.de?
Hosting provider information for check24.de is not available yet.
What is check24.de's SEO score?
check24.de scored 70/100 for SEO in the latest analysis (fair).
What is check24.de's overall website score?
check24.de has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.
Has check24.de's score changed over time?
check24.de's overall score has declined by 2 points (from 82 to 80) since Jul 18, 2026.