What powers 
rd4.nl?
Last seen Sep 2026 · 33 technologies across 20 categories
Advertising
Microsoft Advertising
since Oct 2024
Analytics
CDN
Cloudflare
since Aug 2022
CMS
Craft CMS
since Mar 2021
Cookie compliance
Font scripts
Google Font API
since Sep 2024
Typekit
since Aug 2022
Issue trackers
Sentry
since Aug 2022
JavaScript frameworks
JavaScript libraries
Live chat
Tawk.to
since Oct 2024
Miscellaneous
PaaS
Vercel
since Aug 2022
Programming languages
Security
Cloudflare Bot Management
since Aug 2023
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Mar 2021
UI frameworks
Element UI
since Jul 2023
Video players
Vimeo
since Aug 2023
Web frameworks
Yii
since Mar 2021
Web servers
Apache HTTP Server
since Mar 2021
Webmail
Microsoft 365
since Jul 2024
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 *: Allowed (was Restricted)
- Aug 2026 *: Restricted (was Allowed)
AI Crawlers
No AI crawlers blocked
Audience
- 85% phone
- 11% desktop
- 4% tablet
Netherlands
Germany
Belgium
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.63 / 10 · ranked #382,212 of all domains
47 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 5.0 MB · 54 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Rd4
- Founded: 1998
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on INTERCONNECT Interconnect Services B.V. (213.206.238.137, IPv6)
- DNS: d-zone.ca
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine, DNSSEC signed, CAA
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 8,163,986, 9 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| bedrijvenservice.rd4.nl | 23 |
| mijnbedrijvenservice.rd4.nl | 18 |
| mijn.rd4.nl | 17 |
| rd4.nl | 11 |
| www.rd4.nl | 11 |