What powers 
lean.org.pl?
Last seen Aug 2026 · 32 technologies across 20 categories
Advertising
Analytics
CMS
Cookie compliance
Customer data platform
Databases
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 53% desktop
- 47% phone
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.57 / 10 · ranked #832,120 of all domains
46 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Polish (Poland)
- Weight: 2.9 MB · 67 requests
- WordPress theme: lean · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- lean (Lean Enterprise Institute Polska on Wikidata)
- Founded: 2006
- Country: Poland
- Profiles: LinkedIn, Instagram, Facebook, YouTube
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on PL-IWACOM-AS (91.205.73.232)
- DNS: OVHcloud
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine, MTA-STS, BIMI
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 9,619,238, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected HSTS Aug 2026
- detected Nginx Aug 2026
- detected SALESmanago Jul 2026
- dropped Cloudflare May 2026
- dropped Cloudflare Bot Management May 2026
- dropped Linkedin Insight Tag May 2026
- dropped Litespeed Cache Apr 2026
- detected Cloudflare Mar 2026
- detected Cloudflare Bot Management Mar 2026
- detected Cookiebot Mar 2026
- detected Linkedin Insight Tag Mar 2026
- detected Microsoft Advertising Mar 2026
- detected jQuery UI Jan 2026
- detected Popup Maker Jan 2026
- dropped Cookiebot Dec 2025
- dropped Microsoft Advertising Dec 2025
- detected WordPress Block Editor Nov 2025
- detected Cookiebot Oct 2025
- detected Microsoft Advertising Oct 2025