What powers 
onlineacademy.nl?
Last seen Sep 2026 · 50 technologies across 26 categories
A/B Testing
Advertising
Analytics
Caching
CDN
CMS
Cookie compliance
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Load balancers
Miscellaneous
Operating systems
PaaS
Performance
Programming languages
Rich text editors
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Widgets
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 Oct 2026. A recent check saw a policy file missing; awaiting confirmation.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 59% phone
- 41% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.77 / 10 · ranked #269,697 of all domains
110 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 1.6 MB · 50 requests
- WordPress theme: foundationpress (child: foundationpress-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on TRUESERVER-AS TrueServer BV AS number (87.233.198.46)
- DNS: Cloudflare DNS
- Email: Barracuda
- Email security: SPF (hard fail), DMARC quarantine, DNSSEC signed
- SSL: DigiCert, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 8,770,391, 6 hosts
- Verified with: Microsoft Dynamics 365, Google, Meta Business, OpenAI
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| app.onlineacademy.nl | 30 |
| business.onlineacademy.nl | 17 |
| www.onlineacademy.nl | 17 |
| leren.onlineacademy.nl | 14 |
| identity.onlineacademy.nl | 9 |
| account.onlineacademy.nl | 7 |
| app2.onlineacademy.nl | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped jQuery CDN Aug 2026
- dropped YouTube Aug 2026
- detected jQuery CDN Jun 2026
- detected YouTube Jun 2026
- detected IIS Mar 2026
- dropped jQuery CDN Mar 2026
- detected Windows Server Mar 2026
- dropped YouTube Mar 2026
- dropped Cloudflare Bot Management Jan 2026
- dropped IIS Jan 2026
- detected jQuery CDN Jan 2026
- dropped Windows Server Jan 2026
- detected YouTube Jan 2026
- dropped jQuery CDN Dec 2025
- dropped YouTube Dec 2025