What technology does tu-clausthal.de use?

tu-clausthal.de is built with Apache.

Is tu-clausthal.de secure (HTTPS)?

Yes. tu-clausthal.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 20, 2026.

Who hosts tu-clausthal.de?

Hosting provider information for tu-clausthal.de is not available yet.

What is tu-clausthal.de's SEO score?

tu-clausthal.de scored 65/100 for SEO in the latest analysis (fair).

What is tu-clausthal.de's overall website score?

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

Has tu-clausthal.de's score changed over time?

tu-clausthal.de's overall score has improved by 2 points (from 85 to 87) since Jul 26, 2026.

tu-clausthal.de

Technische Universität Clausthal

Last scanned Aug 2, 2026, 4:00 PM · 10 views

Overall score

Great

Summary

Die TU Clausthal ist eine moderne Profiluniversität, thematisch aufgestellt entlang der Circular Economy mit den Ausprägungen ressourceneffiziente Kreislaufwirtschaft, nachhaltige Materialien, erneuerbare Energien und… This website uses Apache. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.

Die TU Clausthal ist eine moderne Profiluniversität, thematisch aufgestellt entlang der Circular Economy mit den Ausprägungen ressourceneffiziente Kreislaufwirtschaft, nachhaltige Materialien, erneuerbare Energien und digitale Transformation. Junge Menschen genießen im Harz die andere Art zu studieren: die persönliche Atmosphäre, die praxisnahe Lehre und den Campus im Grünen. Gelehrt und geforscht wird in Ingenieur-, Natur- und Wirtschaftswissenschaften sowie Informatik.

Top issues to fix

7 issues found

Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEO
Add og:title/og:description/og:image so shared links render a proper preview card.
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.

+1 more issue — details in the sections below.

SEO

6 issue(s) found

Performance

690 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+2 overall since Jul 26, 2026

Overall: 87
SEO: 65
Security: 100
Performance: 90
Accessibility: 100

Organization

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

Die TU Clausthal ist eine moderne Profiluniversität, thematisch aufgestellt entlang der Circular Economy mit den Ausprägungen ressourceneffiziente Kreislaufwirtschaft, nachhaltige Materialien, erneuerbare Energien und digitale Transformation. Junge Menschen genießen im Harz die andere Art zu studieren: die persönliche Atmosphäre, die praxisnahe Lehre und den Campus im Grünen. Gelehrt und geforscht wird in Ingenieur-, Natur- und Wirtschaftswissenschaften sowie Informatik.

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Meta tags

Title: Technische Universität Clausthal
Description: Die TU Clausthal ist eine moderne Profiluniversität, thematisch aufgestellt entlang der Circular Economy mit den Ausprägungen ressourceneffiziente Kreislaufwirtschaft, nachhaltige Materialien, erneuerbare Energien und digitale Transformation. Junge Menschen genießen im Harz die andere Art zu studieren: die persönliche Atmosphäre, die praxisnahe Lehre und den Campus im Grünen. Gelehrt und geforscht wird in Ingenieur-, Natur- und Wirtschaftswissenschaften sowie Informatik.
Canonical: https://www.tu-clausthal.de/
Language: de-DE
Charset: utf-8
Viewport: width=device-width, initial-scale=1, minimum-scale=1
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: Let's Encrypt
Subject: www.tu-clausthal.de
Valid from: Jul 22, 2026
Valid to: Oct 20, 2026
Days until expiry: 79
SAN domains: arbeitssicherheit.tu-clausthal.de, bibliothek.tu-clausthal.de, forschung.tu-clausthal.de, ifi-ei.tu-clausthal.de, intranet.tu-clausthal.de, isse.tu-clausthal.de, onboarding.tu-clausthal.de, opentucreate.de, personalverwaltung.tu-clausthal.de, tu-clausthal.de, tuclausthal.de, uni-clausthal.de, urmin-kreislaufwirtschaft.de, www.arbeitssicherheit.tu-clausthal.de, www.bibliothek.tu-clausthal.de, www.forschung.tu-clausthal.de, www.ifi-ei.tu-clausthal.de, www.intranet.tu-clausthal.de, www.isse.tu-clausthal.de, www.onboarding.tu-clausthal.de, www.opentucreate.de, www.personalverwaltung.tu-clausthal.de, www.tu-clausthal.de, www.tuclausthal.de, www.uni-clausthal.de, www.urmin-kreislaufwirtschaft.de

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 5 · H2 7 · H3 14

Links

112 internal · 88 external · 20 broken

Images

31 total · 0 missing alt

Scripts / Styles

7 scripts · 4 stylesheets

JS / CSS size

851 B · 7.8 KB

Page size

334 KB

Robots.txt & Sitemap

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

SEO issues

Meta description longer than 160 characters
Multiple H1 headings found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://tu-clausthal.de
Final URL: https://www.tu-clausthal.de/
HTTP status: 200
HTTP version: HTTP/2
Response time: 684 ms
HTML size: 334 KB
Redirect chain: https://tu-clausthal.de → https://www.tu-clausthal.de/

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Frequently asked questions

What technology does tu-clausthal.de use?: tu-clausthal.de is built with Apache.
Is tu-clausthal.de secure (HTTPS)?: Yes. tu-clausthal.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 20, 2026.
Who hosts tu-clausthal.de?: Hosting provider information for tu-clausthal.de is not available yet.
What is tu-clausthal.de's SEO score?: tu-clausthal.de scored 65/100 for SEO in the latest analysis (fair).
What is tu-clausthal.de's overall website score?: tu-clausthal.de has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
Has tu-clausthal.de's score changed over time?: tu-clausthal.de's overall score has improved by 2 points (from 85 to 87) since Jul 26, 2026.