What powers welstad.nl?
Last seen Oct 2026 · 21 technologies across 13 categories
Analytics
CDN
Font scripts
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
AI Crawlers
Blocks 2 of 33 AI crawlers we track by name in its robots.txt, restricts 6 more. Checked Oct 2026.
Training crawlers
- FacebookBot Blocked
- meta-externalagent Blocked
- ClaudeBot Restricted
- GPTBot Restricted
Search and AI assistants
- Claude-SearchBot Restricted
- OAI-SearchBot Restricted
- PerplexityBot Restricted
User-request fetchers
- Claude-User Restricted
The other 25 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 claude-searchbot added to robots.txt
- Oct 2026 claude-user added to robots.txt
- Oct 2026 claudebot added to robots.txt
- Oct 2026 gptbot added to robots.txt
- Oct 2026 oai-searchbot added to robots.txt
- Oct 2026 perplexitybot added to robots.txt
AI Crawlers
2 of 33 AI crawlers blocked
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.89 / 10 · ranked #1,794,328 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch
- Weight: 3.0 MB · 55 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on CLDIN-NL Your Hosting B.V. part of Your.Online (185.56.147.192, IPv6)
- DNS: mica.nl
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 3,736,782, 3 hosts
- Verified with: Cisco Duo, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| vip.welstad.nl | 14 |
| www.welstad.nl | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Microsoft 365 Jun 2026