What powers kolpa.nl?
Last seen Sep 2026 · 31 technologies across 17 categories
Analytics
Blogs
Caching
Cookie compliance
Databases
Font scripts
Issue trackers
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Performance
Programming languages
SEO
Tag managers
UI frameworks
Web servers
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- ClaudeBot Allowed
- Google-Extended Allowed
- GPTBot Allowed
Search and AI assistants
- PerplexityBot Allowed
The other 29 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 65% phone
- 35% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.19 / 10 · ranked #1,275,626 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 175 ms |
| CLS | 0.15 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch
- Weight: 23.6 MB · 115 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Kolpa
- Industry: Real estate (declares
RealEstateAgent) - Profiles: YouTube, Instagram, LinkedIn, Facebook, TikTok
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on WorldStream (185.191.2.223)
- DNS: openprovider.nl
- Email: realworks.nl
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 25,978,297, 2 hosts
- Verified with: Google, Meta Business, Microsoft 365
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kolpa.nl | 19 |
| www.kolpa.nl | 15 |
Full technology history →
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Recent changes
- dropped Google Maps Aug 2026
- dropped lit-element Aug 2026
- dropped lit-html Aug 2026
- detected Tailwind CSS Jul 2026
- detected core-js Mar 2026
- detected Facebook Pixel Mar 2026
- detected Sentry Mar 2026