What powers vanheusden.com?
Last seen Aug 2026 · 2 technologies across 2 categories
AI Crawlers
Blocks 5 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- CCBot Blocked
- ClaudeBot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
The other 28 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
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| multitail | #1 | 25 |
| pdp-11 emulator | #7 | 4 |
| pdp-11 emulator | #7 | 4 |
| pdp 11 emulator | #7 | 4 |
| httping | #2 | 1 |
| chess dog | #30 | 0 |
| tail multiple files | #13 | 0 |
| unix tail multiple files | #21 | 0 |
| saa1099 | #36 | 0 |
| multitail | #37 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
5 of 33 AI crawlers blocked
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.75 / 10 · ranked #59,109 of all domains
262 referring domains · OpenPageRank
Search traffic
38 est. monthly organic visits (US)
10 keywords in Google's top 30
Core Web Vitals
| LCP | 1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.2 MB · 42 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on COLOCLUE-AS Netwerkvereniging Coloclue, Amsterdam, Netherlands (94.142.246.159)
- DNS: TransIP
- Email: vanheusden.com
- Email security: SPF (soft fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 423,034, 9 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| vanheusden.com | 2 |
| www.vanheusden.com | 2 |