What powers siersgroep.nl?
Last seen Sep 2026 · 25 technologies across 14 categories
Analytics
CDN
Cloudflare
since Jan 2025
jsDelivr
since Jan 2025
Cookie compliance
Cookie Script
since Jan 2025
JavaScript frameworks
JavaScript libraries
Marketing automation
HubSpot
since Jun 2026
Miscellaneous
Page builders
Webflow
since Jan 2025
Programming languages
TypeScript
since Aug 2022
Security
HSTS
since Jan 2025
Tag managers
Google Tag Manager
since Feb 2019
Web frameworks
Microsoft ASP.NET
since Aug 2022
Web servers
Nginx
since Aug 2022
Webmail
Apple iCloud Mail
since Jul 2025
Microsoft 365
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 50% desktop
- 50% phone
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.35 / 10 · ranked #1,066,514 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch (Netherlands)
- CDN: Cloudflare
- Weight: 10.7 MB · 73 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (198.202.211.1)
- DNS: hosted.nl
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 3,477,481, 5 hosts
- Verified with: Apple Business, Autodesk, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.siersgroep.nl | 18 |
| uren.siersgroep.nl | 10 |
Full technology history →
Report an incorrect detection
Recent changes
- detected HubSpot Jun 2026