What powers lab21.nl?
Last seen Aug 2026 · 17 technologies across 12 categories
Advertising
Analytics
Cookie compliance
Ecommerce
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Reviews
Tag managers
UI frameworks
Video players
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 |
|---|---|---|
| visgraat vloer eiken | #1 | 9 |
| pvc vloeren showroom | #1 | 9 |
| pvc visgraat vloer | #1 | 9 |
| houten vloeren | #2 | 6 |
| houten vloer kopen | #2 | 6 |
| eiken vloer visgraat | #3 | 5 |
| visgraat vloer | #10 | 1 |
| vloeren pvc | #9 | 1 |
| pvc visgraat met bies | #6 | 1 |
| houten parketvloer | #5 | 1 |
| witte vloer hout | #95 | 0 |
| betonlook vloeren | #38 | 0 |
| visgraat vloer slaapkamer | #72 | 0 |
| visgraat vloer kosten | #86 | 0 |
| visgraat vloer kosten | #20 | 0 |
| visgraat eiken vloer | #83 | 0 |
| vloerverwarming verdeler | #37 | 0 |
| vloerverwarming met warmtepomp | #26 | 0 |
| vloerverwarming kosten | #20 | 0 |
| vloerverwarming en thermostaat | #16 | 0 |
| vloerverwarming aanleggen kosten | #17 | 0 |
| vloeren pvc | #75 | 0 |
| vloeren laminaat | #16 | 0 |
| vloeren egaliseren | #40 | 0 |
| vloeren betonlook | #31 | 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
- 58% phone
- 38% desktop
- 4% tablet
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.56 / 10 · ranked #152,097 of all domains
177 referring domains · OpenPageRank
Search traffic
48 est. monthly organic visits (US)
61 keywords in Google's top 30
Core Web Vitals
| LCP | 1.9 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 4.8 MB · 117 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- LAB21
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on UNISERVER-AS (62.148.187.66)
- DNS: dn-s.nl
- Email: idefender.nl
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 3072, expires Nov 2026
- Common Crawl link graph: rank 12,868,206, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
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Recent changes
- detected Trustpilot Apr 2026