Is ccc.de secure (HTTPS)?

Yes. ccc.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 18, 2026.

ccc.de is hosted on CHAOS-AS - Chaos Computer Club e.V., DE.

What is ccc.de's SEO score?

ccc.de scored 70/100 for SEO in the latest analysis (fair).

What is ccc.de's overall website score?

ccc.de has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.

ccc.de

CCC | Startseite

Last scanned Jul 18, 2026, 8:49 PM

Overall score

Great

Top issues to fix

6 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.
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 canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

Summary

Der Chaos Computer Club ist eine galaktische Gemeinschaft von Lebewesen für Informationsfreiheit und Technikfolgenabschätzung. This website uses Nginx hosted on CHAOS-AS - Chaos Computer Club e.V., DE. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing canonical link.

SEO

4 issue(s) found

100

Performance

713 ms

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.

Source: https://www.ccc.de/support

Meta tags

Title: CCC | Startseite
Description: Der Chaos Computer Club ist eine galaktische Gemeinschaft von Lebewesen für Informationsfreiheit und Technikfolgenabschätzung.
Canonical
Language: en
Charset: utf-8
Viewport: width=device-width,initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: CHAOS-AS - Chaos Computer Club e.V., DE
CDN provider: —
IP address: 185.106.84.100
ASN: AS50472 (CHAOS-AS - Chaos Computer Club e.V., DE)

DNS records

Type	Value
A	185.106.84.100
AAAA	2a02:8000:1000:103::100
MX	—
TXT	—
NS	—
CAA	10 issue "letsencrypt.org"
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: www.ccc.de
Valid from: Jun 20, 2026
Valid to: Sep 18, 2026
Days until expiry: 61
SAN domains: www.ccc.de

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 14 · H3 0

Links

115 internal · 7 external · 0 broken

Images

7 total · 0 missing alt

Scripts / Styles

3 scripts · 2 stylesheets

JS / CSS size

55.6 KB · 25.0 KB

Page size

70.2 KB

Robots.txt & Sitemap

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

SEO issues

Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
sitemap.xml not found

Scan details

Requested URL: https://ccc.de
Final URL: https://www.ccc.de/
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 712 ms
HTML size: 70.2 KB
Redirect chain: https://ccc.de → https://www.ccc.de/

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Frequently asked questions

What technology does ccc.de use?: ccc.de is built with Nginx.
Is ccc.de secure (HTTPS)?: Yes. ccc.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 18, 2026.
Who hosts ccc.de?: ccc.de is hosted on CHAOS-AS - Chaos Computer Club e.V., DE.
What is ccc.de's SEO score?: ccc.de scored 70/100 for SEO in the latest analysis (fair).
What is ccc.de's overall website score?: ccc.de has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.