What powers 
hendrickdekeyser.nl?
Last seen Aug 2026 · 22 technologies across 14 categories
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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
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| museumhuis bartolotti | #7 | 4 |
| hendrick de keyser | #4 | 3 |
| huis | #95 | 2 |
| oudezijds voorburgwal | #58 | 1 |
| oudezijds achterburgwal | #63 | 1 |
| oudezijds achterburgwal | #25 | 1 |
| berlage | #73 | 0 |
| bonck | #50 | 0 |
| vakantie veluwe | #49 | 0 |
| veluwe vakantiehuis | #59 | 0 |
| veluwe vakantiehuis | #27 | 0 |
| warmoesstraat | #62 | 0 |
| raadhuisstraat | #59 | 0 |
| spiegels amsterdam | #72 | 0 |
| steenwijk | #49 | 0 |
| amsterdam zeedijk | #51 | 0 |
| nieuwendammerdijk | #27 | 0 |
| nieuwe zijds voorburgwal | #29 | 0 |
| ontluchten verwarming | #87 | 0 |
| pieter post | #32 | 0 |
| mansion in amsterdam | #42 | 0 |
| michel de klerk | #38 | 0 |
| gemeenlandshuis | #34 | 0 |
| h p berlage | #55 | 0 |
| hendrik berlage | #36 | 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
No AI crawlers blocked
Audience
- 74% phone
- 22% desktop
- 4% tablet
Netherlands
Germany
Belgium
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.03 / 10 · ranked #107,924 of all domains
168 referring domains · OpenPageRank
Search traffic
12 est. monthly organic visits (US)
32 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 2.3 MB · 66 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Hendrick de Keyser Monumenten
- Founded: 1918
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on INFRAPOD (185.223.163.57)
- DNS: TransIP
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC reject, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P384, expires Nov 2026
- Common Crawl link graph: rank 577,300, 4 hosts
- Verified with: Apple Business, Microsoft 365, OpenAI
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Amazon S3 Jun 2026
- detected Amazon Web Services Jun 2026
- detected core-js Jun 2026
- detected Facebook Pixel Jun 2026
- detected Microsoft Clarity Apr 2026
- dropped LazySizes Mar 2026