ptb.de
Physikalisch-Technische Bundesanstalt
Last scanned Aug 1, 2026, 7:00 PM · 7 views
Overall score
Great
Summary
Die Physikalisch-Technische Bundesanstalt (PTB), Braunschweig und Berlin, ist das nationale Metrologie-Institut mit wissenschaftlich-technischen Dienstleistungsaufgaben. This website uses jQuery. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Die Physikalisch-Technische Bundesanstalt (PTB), Braunschweig und Berlin, ist das nationale Metrologie-Institut mit wissenschaftlich-technischen Dienstleistungsaufgaben. Sie misst mit höchster Genauigkeit und Zuverlässigkeit – Metrologie als Kernkompetenz.
Top issues to fix
8 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
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
6 issue(s) found
Performance
835 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-1 overall since Jul 25, 2026
- Overall
- 84
- SEO
- 60
- Security
- 90
- Performance
- 100
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Physikalisch-Technische Bundesanstalt
- Description
- Die Physikalisch-Technische Bundesanstalt (PTB), Braunschweig und Berlin, ist das nationale Metrologie-Institut mit wissenschaftlich-technischen Dienstleistungsaufgaben. Sie misst mit höchster Genauigkeit und Zuverlässigkeit – Metrologie als Kernkompetenz.
- Canonical
- https://www.ptb.de/cms/cms/
- Language
- de-DE
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index,follow
- 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
- Let's Encrypt
- Subject
- ptb.de
- Valid from
- Jul 20, 2026
- Valid to
- Oct 18, 2026
- Days until expiry
- 77
- SAN domains
- ptb.berlin, ptb.de, ptb.eu, ptb.info, www.ptb.berlin, www.ptb.de, www.ptb.eu, www.ptb.info
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 18 · H3 16
Links
211 internal · 7 external · 20 broken
Images
31 total · 0 missing alt
Scripts / Styles
23 scripts · 10 stylesheets
JS / CSS size
2.1 KB · 363 B
Page size
92.8 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
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://ptb.de
- Final URL
- https://www.ptb.de/cms/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 834 ms
- HTML size
- 92.8 KB
- Redirect chain
- https://ptb.de → https://www.ptb.de/ → https://www.ptb.de/cms/
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Frequently asked questions
- What technology does ptb.de use?
- ptb.de is built with jQuery.
- Is ptb.de secure (HTTPS)?
- Yes. ptb.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 18, 2026.
- Who hosts ptb.de?
- Hosting provider information for ptb.de is not available yet.
- What is ptb.de's SEO score?
- ptb.de scored 60/100 for SEO in the latest analysis (fair).
- What is ptb.de's overall website score?
- ptb.de has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
- Has ptb.de's score changed over time?
- ptb.de's overall score has declined by 1 point (from 85 to 84) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card