lrz.de
Startseite - Leibniz-Rechenzentrum
Last scanned Aug 2, 2026, 3:00 AM · 8 views
Overall score
Great
Summary
This website uses Apache. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing meta description.
Top issues to fix
8 issues found · 3 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 meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
548 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 85
- SEO
- 65
- Security
- 80
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- Phone
- +4989358318800
Meta tags
- Title
- Startseite - Leibniz-Rechenzentrum
- Description
- Canonical
- https://www.lrz.de/
- Language
- de
- Charset
- utf-8
- Viewport
- width=device-width
- Robots meta
- noodp
- Manifest
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
- Hellenic Academic and Research Institutions CA
- Subject
- bavarianqc.de
- Valid from
- Jul 23, 2026
- Valid to
- Feb 7, 2027
- Days until expiry
- 189
- SAN domains
- bavarianqc.de, www.sc20.lrz.de, swbezugtest.lrz.de.devweb.mwn.de, envicon.webdb.devweb.mwn.de, sc.lrz.de, t3-staging.devweb.mwn.de, site-logs.download.lrz.de, webdb-wwwv18lrzde.devweb.mwn.de, ee-workshop.for.lrz.de, open.lrz.de, www.leibniz-supercomputing-centre.eu, www.qic.lrz.de, openlabday24.v2c.lrz.de, quantum.lrz.de, cave-event.v2c.lrz.de, examuc-procurement.lrz.de, softwarebezug.lrz.de, www.supercomputingcenters.org, supercomputingcenters.org, moodle-intern2.srv.lrz.de, www.lrz60.de, www.hpc-workshop.lrz.de, hpc-workshop.lrz.de, nextgenhpc.lrz.de, www-lrz-de-staging.devweb.mwn.de, sc20.lrz.de, www.bigdata.lrz.de, secincmgmt.sec.lrz.de.devweb.mwn.de, www.nextgenhpc.lrz.de, examuc-proposal.lrz.de, moodle-intern.srv.lrz.de, bavarianquantum.de, bqcx.de, enviroinfo2023.eu, moodle-intern3.srv.lrz.de, phpmyadmin.intern.lrz.de, www.isc.lrz.de, wwwv18.lrz.de, chronik.webdb.devweb.mwn.de, v2c.lrz.de, eurompi21.lrz.de, www.cave-event.v2c.lrz.de, phpmyadmin.lrz.de, fionaproxy.intern.lrz.de.devweb.mwn.de, di82ler-d.devweb.mwn.de, www.old.lrz.de.devweb.mwn.de, intern.lrz.de, abwesend.lrz.de.devweb.mwn.de, zki2025-herbsttagung.lrz.de, bigdata.lrz.de, elearning.lrz.de, websiteantrag.lrz.de.devweb.mwn.de, supercomputingcentres.org, abwesend.intern.lrz.de, hpcqc.org, www.supercomputingcentres.org, www.eurompi21.lrz.de, qic.lrz.de, webdb-dev.devweb.mwn.de, www.enviroinfo2023.eu, www.lrz.de, www.leibniz-supercomputing-centre.de, www.quantum.lrz.de, lrz60.de, softwarebezug.lrz.de.devweb.mwn.de, isc.lrz.de, www.v2c.lrz.de, testmoodle.video.lrz.de, www.sc.lrz.de, envcomp.eu, www.hpcqc.org, secincmgmt.sec.lrz.de, lrz.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 10 · H3 21
Links
112 internal · 10 external · 20 broken
Images
11 total · 0 missing alt
Scripts / Styles
3 scripts · 1 stylesheets
JS / CSS size
2.0 KB · 23.0 KB
Page size
288 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://lrz.de
- Final URL
- https://www.lrz.de/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 543 ms
- HTML size
- 288 KB
- Redirect chain
- https://lrz.de → https://www.lrz.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does lrz.de use?
- lrz.de is built with Apache.
- Is lrz.de secure (HTTPS)?
- Yes. lrz.de uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 7, 2027.
- Who hosts lrz.de?
- Hosting provider information for lrz.de is not available yet.
- What is lrz.de's SEO score?
- lrz.de scored 65/100 for SEO in the latest analysis (fair).
- What is lrz.de's overall website score?
- lrz.de has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- Has lrz.de's score changed over time?
- lrz.de's overall score has declined by 3 points (from 88 to 85) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card