What technology does katretter.de use?

katretter.de is built with Bootstrap, Nginx.

Is katretter.de secure (HTTPS)?

Yes. katretter.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 4, 2026.

Who hosts katretter.de?

Hosting provider information for katretter.de is not available yet.

What is katretter.de's SEO score?

katretter.de scored 65/100 for SEO in the latest analysis (fair).

What is katretter.de's overall website score?

katretter.de has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.

katretter.de

Startseite | KatX - Vernetzt im Bevölkerungsschutz

Last scanned Jul 26, 2026, 5:47 AM

Overall score

Great

Summary

This website uses Nginx. SEO is fair (65/100) and accessibility is good (85/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: Missing meta description.

Top issues to fix

8 issues found · 2 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
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.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+2 more issues — details in the sections below.

SEO

5 issue(s) found

Performance

1.47 s

Security

HTTPS & header checks

Accessibility

1 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.

Contact

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

Email: info@kat-x.de

Meta tags

Title: Startseite | KatX - Vernetzt im Bevölkerungsschutz
Description
Canonical: https://kat-x.de/start
Language: de
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Bootstrap Nginx

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: kat-x.de
Valid from: Jun 6, 2026
Valid to: Sep 4, 2026
Days until expiry: 37
SAN domains: *.kat-x.de, kat-x.de

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 4 · H2 1 · H3 0

Links

6 internal · 8 external · 14 broken

Images

11 total · 3 missing alt

Scripts / Styles

3 scripts · 4 stylesheets

JS / CSS size

0 B · 0 B

Page size

10.6 KB

Robots.txt & Sitemap

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

SEO issues

Missing meta description
Multiple H1 headings found
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://katretter.de
Final URL: https://kat-x.de
HTTP status: 200
HTTP version: HTTP/2
Response time: 1.47 s
HTML size: 10.6 KB
Redirect chain: https://katretter.de → https://kat-x.de

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does katretter.de use?: katretter.de is built with Bootstrap, Nginx.
Is katretter.de secure (HTTPS)?: Yes. katretter.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 4, 2026.
Who hosts katretter.de?: Hosting provider information for katretter.de is not available yet.
What is katretter.de's SEO score?: katretter.de scored 65/100 for SEO in the latest analysis (fair).
What is katretter.de's overall website score?: katretter.de has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.