What powers 
swietelsky.at?
Last seen Aug 2026 · 11 technologies across 8 categories
Advertising
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Security
Web frameworks
Webmail
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 71% phone
- 30% desktop
Austria
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.73 / 10 · ranked #290,978 of all domains
114 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 5.6 MB · 76 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Swietelsky
- Founded: 1936
- Sector: construction industry
- Country: Austria
From Wikidata (CC0).
Infrastructure
- Hosted on IPAX-AS (37.252.186.121)
- DNS: a1.net
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- SSL: Let's Encrypt, RSA 3072, expires Nov 2026
- Common Crawl link graph: rank 2,913,727, 3 hosts
- Verified with: Adobe, Apple Business, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Chart.js Jun 2026
- dropped jQuery Jun 2026
- dropped Lightbox Jun 2026
- detected core-js May 2026
- detected GSAP May 2026
- detected Microsoft ASP.NET May 2026
- detected Priority Hints May 2026
- detected Svelte May 2026