What powers sigma.nl?
Last seen Aug 2026 · 29 technologies across 17 categories
A/B Testing
Google Optimize
since Aug 2022
Analytics
Azure Monitor
since Sep 2024
Google Analytics
since Jan 2019
Hotjar
since Jan 2019
Linkedin Insight Tag
since Apr 2024
TikTok Pixel
since Apr 2024
CDN
Cookie compliance
Didomi
since Oct 2023
Ecommerce
Cart Functionality
since Sep 2020
Mailgun
since Aug 2022
JavaScript libraries
Miscellaneous
Popper
since Aug 2022
Operating systems
Windows Server
since Jan 2019
PaaS
Azure
since Sep 2021
RUM
Microsoft Application Insights
since Sep 2024
Search engines
Security
Cloudflare Bot Management
since Jun 2025
HSTS
since Nov 2022
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Web frameworks
Microsoft ASP.NET
since Jan 2019
Web servers
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
- 61% phone
- 35% desktop
- 3% tablet
Netherlands
Belgium
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.95 / 10 · ranked #251,371 of all domains
58 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 125 ms |
| CLS | 0.1 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- CDN: Fastly
- Weight: 2.5 MB · 92 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.sigma.nl | 27 |
| doehetzelf.sigma.nl | 12 |
Full technology history →
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Recent changes
- dropped Google AdSense Nov 2025