What powers 
roelofsgroep.nl?
Last seen Sep 2026 · 45 technologies across 22 categories
Advertising
Analytics
Caching
CDN
CMS
Cookie compliance
Databases
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
Performance
Programming languages
Security
SEO
Tag managers
UI frameworks
Web servers
Webmail
WordPress plugins
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Google-Extended Blocked
The other 32 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
1 of 33 AI crawlers blocked
Standards: llms.txt
Audience
- 56% phone
- 44% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.20 / 10 · ranked #456,197 of all domains
56 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 20.1 MB · 83 requests
- WordPress theme: cu-theme · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Roelofsgroep - Meer waarde aan ruimte (Roelofs Groep on Wikidata)
- Country: Netherlands
- Profiles: Facebook, X, Instagram, LinkedIn, YouTube
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on PREVIDER-AS (31.7.4.205)
- DNS: interstroom.nl
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Jan 2027
- Common Crawl link graph: rank 3,111,806, 2 hosts
- Verified with: Apple Business, Autodesk, Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.roelofsgroep.nl | 38 |
| projecten.roelofsgroep.nl | 12 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Facebook Pixel Sep 2026
- detected Cloudflare Jun 2026
- detected Cloudflare Bot Management Jun 2026
- detected Linkedin Insight Tag Jun 2026
- dropped Typekit May 2026
- detected Cookiebot Feb 2026
- detected Microsoft Advertising Feb 2026
- dropped cdnjs Dec 2025
- dropped Cloudflare Dec 2025
- dropped Font Awesome Dec 2025
- dropped Google Font API Dec 2025
- dropped jQuery CDN Dec 2025
- detected Priority Hints Nov 2025
- detected WP Rocket Nov 2025
- detected Yoast SEO Premium Nov 2025