61
/ 100
C
Average
Overall Domain Score
SEO 62 · LLM 55 · Perf 64
62
🔍 SEO Score
8 / 13 checks passed
55
🤖 LLM Readiness
6 / 11 checks passed
64
⚡ Performance
7 / 11 checks passed
📝 Extracted Page Tags
Title Tag
Startseite: GFZ
Meta Description
Das GFZ Helmholtz-Zentrum für Geoforschung ist das nationale Zentrum für die Erforschung der festen Erde. Wir untersuchen die Geosphäre im hochkomplexen System Erde mit den weiteren Teilsystemen und ihren ineinandergreifenden Kreisläufen und weitverzweigten Ursache-Wirkungs-Ketten.
H1 Heading
Startseite
Canonical URL
https://www.gfz.de/
🔍 SEO Audit
62/100❌ Title Tag
Length: 15 chars (Ideal: 30-60).
❌ Meta Description
Length: 282 chars (Ideal: 50-160).
✅ H1 Tag
Found 1 H1 tags. Exactly 1 is recommended.
✅ Canonical URL
Canonical URL is set.
❌ Open Graph Tags
Found 2 OG properties (4+ recommended).
✅ Indexability
Page allows indexing.
✅ Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
8 of 40 images missing alt.
✅ Sitemap
Sitemap declared.
✅ Heading Hierarchy
H1 and H2 structure detected.
✅ Internal Links
Found 136 internal links.
❌ HSTS Security
Missing HSTS header.
✅ HTTPS
Loads securely over HTTPS.
🤖 LLMO
55/100❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
✅ Contextual Summary
Description provides good AI context.
✅ E-E-A-T (Author)
Author identity found.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
✅ AI Crawler Access
AI agents not blocked.
✅ Language Declaration
Language set to 'de'.
✅ Semantic Structure
Uses <main> or <article>.
✅ Entity Verification Links
Social/publisher profiles linked.
⚡ Performance
64/100Network Waterfall (Total: 1805ms)
- DNS: 509ms
- Connect: 616ms
- TTFB: 1013ms
- Download: 792ms
❌ Time to First Byte (TTFB)
TTFB: 1013ms (Target: < 600ms).
✅ HTML Payload Size
Raw HTML: 14.4KB (Target: < 150KB).
✅ Text Compression
Compression enabled (gzip).
✅ Cache Policies
Cache-Control headers set.
❌ CDN Usage
No CDN headers found.
✅ Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
✅ Native Lazy Loading
Images use loading='lazy'.
✅ Minified Assets
Minified .js/.css referenced.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
✅ Character Set
UTF-8 declared.
🛡️ Security & Blacklist
Clean✅ Domain is clean.
⚙️ Technologies
E-Commerce
Magento
Infrastructure & CDN
Apache
📋 WHOIS
WHOIS unavailable.
🔗 DNS Records
| Type | Value |
|---|---|
| A | 139.17.229.15 |
| MX | a1791.mx.srv.dfn.de |
| MX | c1791.mx.srv.dfn.de |
| MX | b1791.mx.srv.dfn.de |
| TXT | v=spf1 a:mail.gfz.de a:otc-de-spf.mms.t-systems-service.com a:gfz-potsdam.managed-otrs.com ~all |
| TXT | apple-domain-verification=x4FbNnccJGQzMTnS |
| TXT | brevo-code:6fad695b8997745705f7bded854ca36f |
| TXT | HARICA-daixckcDu6hTgkCM3hk |
| TXT | ZOOM_verify_WMcZHMblRpm62qSZoQBMGt |
| TXT | google-site-verification=xZys4ru3dIHJgPjigJsVn4lxGuWDLkVhMt8pI5-UhcE |
| TXT | google-site-verification=PBmbfc0roQUVqC9JRR5CG3I8Dde-BsCDpxsdcOSSVi4 |
| TXT | google-site-verification=5DbFz1OqPjnkQBkd3L4S0nfb9_uVY9PyhjzaA1tVqls |
| TXT | HARICA-Atmb6pR6Dtv9DZMiMY7 |
| NS | zrt7b.gfz-potsdam.de |
| NS | deneb.dfn.de |