What technology does wissen.de use?

wissen.de is built with Drupal, Google Analytics, Google Ads.

Is wissen.de secure (HTTPS)?

Yes. wissen.de uses TLS 1.2 with a certificate issued by GlobalSign nv-sa, valid until Oct 21, 2026.

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

What is wissen.de's SEO score?

wissen.de scored 85/100 for SEO in the latest analysis (great).

What is wissen.de's overall website score?

wissen.de has an overall SiteGraph score of 93/100, combining SEO, performance, security, and accessibility.

wissen.de

Last scanned Jul 26, 2026, 12:19 PM

Overall score

Excellent

Summary

wissen.de ist das Wissensportal im deutschsprachigen Raum. This website uses Drupal. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

wissen.de ist das Wissensportal im deutschsprachigen Raum. Auf wissen.de finden Sie geprüfte Informationen. Kurz, knapp und präzise.

Top issues to fix

5 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
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.
20 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

3 issue(s) found

100

Performance

125 ms

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.

wissen.de ist das Wissensportal im deutschsprachigen Raum. Auf wissen.de finden Sie geprüfte Informationen. Kurz, knapp und präzise.

Facebook X (Twitter)

Meta tags

Title: Allgemeinbildung | Wissenstest | Lexikon | Wörterbücher | Suche | wissen.de
Description: wissen.de ist das Wissensportal im deutschsprachigen Raum. Auf wissen.de finden Sie geprüfte Informationen. Kurz, knapp und präzise.
Canonical: https://www.wissen.de/
Language: de
Charset: utf-8
Viewport: width=device-width,initial-scale=1.0
Robots meta: index, follow, max-snippet:-1, max-video-preview:-1, max-image-preview:large
Manifest

Technologies

Detected frameworks, languages, and tools.

Drupal Google Analytics Google Ads

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 1.2
Issuer: GlobalSign nv-sa
Subject: www.wissen.de
Valid from: Sep 19, 2025
Valid to: Oct 21, 2026
Days until expiry: 84
SAN domains: www.wissen.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 1 · H2 50 · H3 11

Links

100 internal · 10 external · 20 broken

Images

31 total · 3 missing alt

Scripts / Styles

19 scripts · 2 stylesheets

JS / CSS size

7.3 KB · 4.3 KB

Page size

186 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
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://wissen.de
Final URL: https://www.wissen.de/
HTTP status: 200
HTTP version: HTTP/2
Response time: 122 ms
HTML size: 186 KB
Redirect chain: https://wissen.de → https://www.wissen.de/

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