planet-wissen.de
Planet Wissen
Last scanned Aug 3, 2026, 2:00 AM · 9 views
Overall score
Great
Summary
Wissensendung im Fernsehen und Online-Plattform von Westdeutschem Rundfunk (WDR), Südwestrundfunk (SWR) und ARD alpha. This website uses Apache. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (70/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Wissensendung im Fernsehen und Online-Plattform von Westdeutschem Rundfunk (WDR), Südwestrundfunk (SWR) und ARD alpha
Top issues to fix
7 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
462 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 26, 2026
- Overall
- 87
- SEO
- 80
- Security
- 70
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Wissensendung im Fernsehen und Online-Plattform von Westdeutschem Rundfunk (WDR), Südwestrundfunk (SWR) und ARD alpha
Meta tags
- Title
- Planet Wissen
- Description
- Wissensendung im Fernsehen und Online-Plattform von Westdeutschem Rundfunk (WDR), Südwestrundfunk (SWR) und ARD alpha
- Canonical
- https://www.planet-wissen.de/index.html
- Language
- de
- Charset
- utf-8
- Viewport
- width=device-width, user-scalable=yes, initial-scale=1.0, minimum-scale=1.0
- Robots meta
- index,follow,noarchive,unavailable_after: 2031-07-29T10:26:15+02:00
- Manifest
- https://www.planet-wissen.de/resources-v5.176.1/img/favicon/manifest.json
Technologies
Detected frameworks, languages, and tools.
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
- DigiCert Inc
- Subject
- www.wdr.de
- Valid from
- Dec 7, 2025
- Valid to
- Dec 8, 2026
- Days until expiry
- 127
- SAN domains
- www.wdr.de, 1livekrone.de, allegegenpistor.wdr2.de, cdni-pageflow.wdr.de, cdnl.reportage.wdr.de, diedunkleseite.1live.de, exporte2.wdr.de, festivals.1live.de, festivals.einslive.de, freundeskreis.einslive.de, gewinnspiel.einslive.de, konzertplayer.wdr3.de, loveplane.1live.de, loveplane.einslive.de, lovetrain.einslive.de, ondemand-http.wdr.de, origin-geo-de.wdr.de, origin.festivals.1live.de, origin.festivals.einslive.de, podcast.wdr.de, quiz.wdr2.de, static.freundeskreis.einslive.de, wdr.de, www.einslive.de, www.einslivekrone.de, www.festivals.1live.de, www.festivals.einslive.de, www.kinderradionacht.de, www.lindenstrasse.de, www.planet-wissen.de, www.quarks.de, www.wdr2.de, www.wdr3.de, www.wdr4.de, www.wdr5.de, www.wdrmaus.de, www1.wdr.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 16 · H3 2
Links
48 internal · 6 external · 20 broken
Images
41 total · 0 missing alt
Scripts / Styles
5 scripts · 10 stylesheets
JS / CSS size
561 B · 0 B
Page size
87.2 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://planet-wissen.de
- Final URL
- https://www.planet-wissen.de/index.html
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 461 ms
- HTML size
- 87.2 KB
- Redirect chain
- https://planet-wissen.de → https://www.planet-wissen.de/ → https://www.planet-wissen.de/index.html
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does planet-wissen.de use?
- planet-wissen.de is built with Apache.
- Is planet-wissen.de secure (HTTPS)?
- Yes. planet-wissen.de uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Dec 8, 2026.
- Who hosts planet-wissen.de?
- Hosting provider information for planet-wissen.de is not available yet.
- What is planet-wissen.de's SEO score?
- planet-wissen.de scored 80/100 for SEO in the latest analysis (great).
- What is planet-wissen.de's overall website score?
- planet-wissen.de has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
- Has planet-wissen.de's score changed over time?
- planet-wissen.de's overall score has declined by 1 point (from 88 to 87) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card