ptb.de

Scanned URL: https://ptb.de

📅 Scan completed: April 11, 2026 at 11:36 AM

52
/ 100
D
Below Avg
Overall Domain Score
SEO 54 · LLM 36 · Perf 64
54

πŸ” SEO Score

7 / 13 checks passed

36

πŸ€– LLM Readiness

4 / 11 checks passed

64

⚑ Performance

7 / 11 checks passed

πŸ“ Extracted Page Tags
Title Tag
Physikalisch-Technische Bundesanstalt
Meta Description
Die Physikalisch-Technische Bundesanstalt (PTB), Braunschweig und Berlin, ist das nationale Metrologie-Institut mit wissenschaftlich-technischen Dienstleistungsaufgaben. Sie misst mit hΓΆchster Genauigkeit und ZuverlΓ€ssigkeit – Metrologie als Kernkompetenz.
H1 Heading
None found
Canonical URL
https://www.ptb.de/cms/cms/
πŸ” SEO Audit
54/100
βœ… Title Tag
Length: 37 chars (Ideal: 30-60).
❌ Meta Description
Length: 256 chars (Ideal: 50-160).
❌ H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
βœ… Canonical URL
Canonical URL is set.
❌ Open Graph Tags
Found 0 OG properties (4+ recommended).
βœ… Indexability
Page allows indexing.
βœ… Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
10 of 31 images missing alt.
❌ Sitemap
No sitemap found in robots.txt.
❌ Heading Hierarchy
Missing H1 or H2 tags.
βœ… Internal Links
Found 259 internal links.
βœ… HSTS Security
HSTS header present.
βœ… HTTPS
Loads securely over HTTPS.
πŸ€– LLMO
36/100
❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
βœ… Contextual Summary
Description provides good AI context.
❌ E-E-A-T (Author)
No author meta or schema.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
❌ AI Crawler Access
robots.txt blocks AI crawlers.
βœ… Language Declaration
Language set to 'de-DE'.
βœ… Semantic Structure
Uses <main> or <article>.
βœ… Entity Verification Links
Social/publisher profiles linked.
⚑ Performance
64/100
Network Waterfall (Total: 1885ms)
  • DNS: 0ms
  • Connect: 0ms
  • TTFB: 237ms
  • Download: 1648ms
βœ… Time to First Byte (TTFB)
TTFB: 237ms (Target: < 600ms).
βœ… HTML Payload Size
Raw HTML: 16.4KB (Target: < 150KB).
βœ… Text Compression
Compression enabled (gzip).
βœ… Cache Policies
Cache-Control headers set.
❌ CDN Usage
No CDN headers found.
βœ… Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
❌ Native Lazy Loading
No lazy loading detected.
βœ… Minified Assets
Minified .js/.css referenced.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
βœ… Character Set
UTF-8 declared.
πŸ›‘οΈ Security & Blacklist
Clean
βœ… Domain is clean.
βœ… Spamhaus DBLVerify β†—
Lookup inconclusive β€” use the Verify link to check manually.
βœ… SURBLVerify β†—
Not listed β€” no threats detected.
βœ… URIBLVerify β†—
Not listed β€” no threats detected.
βœ… Google Safe BrowsingVerify β†—
No unsafe content found per Google Safe Browsing.
βš™οΈ Technologies
E-Commerce
Magento
JavaScript
jQuery
Infrastructure & CDN
Apache
πŸ“‹ WHOIS

WHOIS unavailable.

πŸ”— DNS Records
TypeValue
A192.53.103.121
MXmx1.bs.ptb.de
MXmx1.berlin.ptb.de
TXTapple-domain-verification=XrEPkGN8FLiu5cwG
TXTv=spf1 ip4:192.53.103.120/32 ip4:194.94.94.97/32 ip6:2001:638:610:bd01::120/128 ip6:2001:638:610:cdce::61/128 include:spf.smtp.net ~all
TXTMS=ms585763033600
NSdns-2.dfn.de
NSns1.ptb.de
NSdns-3.dfn.de
NSdns-1.dfn.de

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