What powers 
bblthk.nl?
Last seen Oct 2026 · 7 technologies across 7 categories
CMS
JavaScript libraries
Operating systems
Programming languages
Security
Web servers
Webmail
AI Crawlers
Blocks 9 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- Bytespider Blocked
- ClaudeBot Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- Claude-SearchBot Blocked
- OAI-SearchBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 24 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
AI Crawlers
9 of 33 AI crawlers blocked
Audience
- 76% phone
- 24% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.93 / 10 · ranked #624,099 of all domains
25 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
1 keywords in Google's top 30
Core Web Vitals
| LCP | 0.7 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 9.2 MB · 20 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- de bblthk
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on Microsoft (20.23.2.223)
- DNS: introweb.nl
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 168,112, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| printen.bblthk.nl | 5 |
| www.bblthk.nl | 5 |