What powers 
usar.nl?
Last seen Aug 2026 · 28 technologies across 19 categories
Advertising
Analytics
Caching
CDN
CMS
Cookie compliance
Databases
Font scripts
Hosting
JavaScript libraries
Live chat
Maps
Miscellaneous
Page builders
Performance
Programming languages
Security
Tag managers
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| usar team | #94 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.30 / 10 · ranked #197,634 of all domains
27 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
1 keywords in Google's top 30
Core Web Vitals
| LCP | 2.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 30.4 MB · 89 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- USAR (urban search and rescue on Wikidata)
- Founded: 2003
- Country: Netherlands
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on ACKNOWLEDGE-BC (185.99.205.201, IPv6)
- DNS: dnstools.nl
- Email: bit.nl
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P384, expires Nov 2026
- Common Crawl link graph: rank 7,644,682, 2 hosts
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
- detected Priority Hints Jul 2026
- detected WhatsApp Business Chat Jul 2026
- dropped Priority Hints Jun 2026
- detected Cookiebot May 2026
- detected Microsoft Advertising May 2026
- detected Priority Hints Apr 2026
- dropped Priority Hints Mar 2026
- dropped WhatsApp Business Chat Mar 2026
- dropped jsDelivr Jan 2026
- detected WhatsApp Business Chat Jan 2026
- detected jsDelivr Nov 2025
- detected Priority Hints Nov 2025
- dropped Priority Hints Oct 2025