What technology does quarks.de use?

quarks.de is built with PHP, WordPress, jQuery, Apache.

Is quarks.de secure (HTTPS)?

Yes. quarks.de uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Dec 8, 2026.

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

What is quarks.de's SEO score?

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

What is quarks.de's overall website score?

quarks.de has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.

quarks.de

Quarks | Wissen

Last scanned Jul 26, 2026, 5:47 AM

Overall score

Excellent

Summary

Quarks zeigt, wie ihr euch in der komplizierten Welt zurechtfindet – evidenzbasiert. This website uses WordPress. SEO is good (85/100) and accessibility is good (85/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Multiple H1 headings found.

Quarks zeigt, wie ihr euch in der komplizierten Welt zurechtfindet – evidenzbasiert. Gemacht mit Hirn, Herz und unserem Rundfunkbeitrag.

Top issues to fix

6 issues found

Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
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.
More than 20% of images are missing alt text
Accessibility
Add alt attributes to the remaining images (use alt="" for purely decorative ones).
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

266 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.

Organization

Company details published in this site's own structured data.

Quarks zeigt, wie ihr euch in der komplizierten Welt zurechtfindet – evidenzbasiert. Gemacht mit Hirn, Herz und unserem Rundfunkbeitrag.

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Meta tags

Title: Quarks | Wissen
Description: Quarks zeigt, wie ihr euch in der komplizierten Welt zurechtfindet – evidenzbasiert. Gemacht mit Hirn, Herz und unserem Rundfunkbeitrag.
Canonical: https://www.quarks.de/
Language: de-DE
Charset: UTF-8
Viewport: width=device-width, initial-scale=1, shrink-to-fit=no
Robots meta: index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest: https://www.quarks.de/wp-content/themes/understrap/assets/fav/site.webmanifest

Technologies

Detected frameworks, languages, and tools.

PHP WordPress jQuery 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: DigiCert Inc
Subject: www.wdr.de
Valid from: Dec 7, 2025
Valid to: Dec 8, 2026
Days until expiry: 133
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-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsMissing
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 2 · H2 23 · H3 25

Links

72 internal · 10 external · 20 broken

Images

53 total · 16 missing alt

Scripts / Styles

67 scripts · 28 stylesheets

JS / CSS size

74.9 KB · 12.8 KB

Page size

221 KB

Robots.txt & Sitemap

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

SEO issues

Multiple H1 headings found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://quarks.de
Final URL: https://www.quarks.de
HTTP status: 200
HTTP version: HTTP/2
Response time: 262 ms
HTML size: 221 KB
Redirect chain: https://quarks.de → https://www.quarks.de

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