What technology does congstar.de use?

congstar.de is built with Apache.

Is congstar.de secure (HTTPS)?

Yes. congstar.de uses TLS 1.3 with a certificate issued by Deutsche Telekom Security GmbH, valid until Sep 29, 2026.

Who hosts congstar.de?

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

What is congstar.de's SEO score?

congstar.de scored 80/100 for SEO in the latest analysis (great).

What is congstar.de's overall website score?

congstar.de has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.

congstar.de

Mobilfunk – Prepaid – Handytarife – Smartphones – 5G – DSL

Last scanned Jul 26, 2026, 5:17 AM

Overall score

Great

Summary

Dein Anbieter für alle Ansprüche: ✔ Günstig ✔ Fair ✔ Verträge mit und ohne Laufzeit ✔ 5G Option ✔ mit GB+ automatisch mehr Datenvolumen jedes Jahr. This website uses Apache. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance good (80/100). Top issue: Title longer than 60 characters.

Dein Anbieter für alle Ansprüche: ✔ Günstig ✔ Fair ✔ Verträge mit und ohne Laufzeit ✔ 5G Option ✔ mit GB+ automatisch mehr Datenvolumen jedes Jahr.

Top issues to fix

6 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.
Slow estimated load (7.3s)
Performance
Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search 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.

SEO

4 issue(s) found

Performance

7.27 s

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.

Dein Anbieter für alle Ansprüche: ✔ Günstig ✔ Fair ✔ Verträge mit und ohne Laufzeit ✔ 5G Option ✔ mit GB+ automatisch mehr Datenvolumen jedes Jahr.

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Meta tags

Title: Mobilfunk – Prepaid – Handytarife – Smartphones – 5G – DSL
Description: Dein Anbieter für alle Ansprüche: ✔ Günstig ✔ Fair ✔ Verträge mit und ohne Laufzeit ✔ 5G Option ✔ mit GB+ automatisch mehr Datenvolumen jedes Jahr.
Canonical: https://www.congstar.de/
Language: de
Charset: utf-8
Viewport: width=device-width, initial-scale=1, shrink-to-fit=no, interactive-widget=resizes-content
Robots meta: index, follow
Manifest

Technologies

Detected frameworks, languages, and tools.

Apache

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: Deutsche Telekom Security GmbH
Subject: *.congstar.de
Valid from: Mar 16, 2026
Valid to: Sep 29, 2026
Days until expiry: 65
SAN domains: *.congstar.de, congstar.de

Security headers

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

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 9

Links

121 internal · 8 external · 0 broken

Images

12 total · 0 missing alt

Scripts / Styles

28 scripts · 4 stylesheets

JS / CSS size

548 KB · 7.7 KB

Page size

141 KB

Robots.txt & Sitemap

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

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://congstar.de
Final URL: https://www.congstar.de/
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 7.27 s
HTML size: 141 KB
Redirect chain: https://congstar.de → https://www.congstar.de/

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Frequently asked questions

What technology does congstar.de use?: congstar.de is built with Apache.
Is congstar.de secure (HTTPS)?: Yes. congstar.de uses TLS 1.3 with a certificate issued by Deutsche Telekom Security GmbH, valid until Sep 29, 2026.
Who hosts congstar.de?: Hosting provider information for congstar.de is not available yet.
What is congstar.de's SEO score?: congstar.de scored 80/100 for SEO in the latest analysis (great).
What is congstar.de's overall website score?: congstar.de has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.