What powers 
vdbum.de?
Last seen Sep 2026 · 25 technologies across 17 categories
Caching
CMS
Databases
Font scripts
Hosting
Hosting panels
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
Performance
Programming languages
Security
SEO
Web servers
Widgets
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 56% desktop
- 44% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.74 / 10 · ranked #284,231 of all domains
112 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German (Germany)
- Weight: 8.6 MB · 81 requests
- WordPress theme: impreza (child: impreza-child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- VDBUM - Verband der Baubranche, Umwelt- und Maschinentechnik e.V. (Association of the construction industry, environmental and mechanical engineering on Wikidata)
- Founded: 1971
- Sector: building construction, underground construction, road construction
- Country: Germany
- Profiles: Facebook, Instagram
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Hetzner (138.199.202.110)
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 9,950,841, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped React Sep 2026
- dropped FancyBox Jul 2026
- dropped LazySizes Jul 2026
- dropped Modernizr Jul 2026
- dropped PayPal Jul 2026
- detected Twitter Emoji (Twemoji) Jul 2026
- detected Borlabs Cookie Jun 2026
- detected GSAP Jun 2026
- detected Hetzner Jun 2026
- detected MySQL Jun 2026
- detected Nginx Jun 2026
- detected Open Graph Jun 2026
- detected OWL Carousel Jun 2026
- detected PHP Jun 2026
- detected Plesk Jun 2026
- detected Priority Hints Jun 2026
- detected React Jun 2026
- detected Redis Jun 2026
- detected Redis Object Cache Jun 2026
- detected RSS Jun 2026
- detected Slider Revolution Jun 2026
- detected Vue.js Jun 2026
- detected WooCommerce Jun 2026
- detected WooCommerce Multilingual Jun 2026
- detected WordPress Jun 2026
- detected wpBakery Jun 2026
- detected WPML Jun 2026
- detected Yoast SEO Jun 2026
- detected Yoast SEO Premium Jun 2026
- dropped Bootstrap Jan 2026
- dropped Microsoft 365 Dec 2025