What powers astronomie.nl?
Last seen Aug 2026 · 10 technologies across 8 categories
Analytics
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
UI frameworks
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| uranus uranus | #90 | 350 |
| uranus a planet | #92 | 350 |
| nasa apod | #63 | 43 |
| van leeuwen | #52 | 38 |
| apod | #72 | 25 |
| ster | #45 | 17 |
| spaceengine | #54 | 11 |
| ultra deep field | #91 | 3 |
| super vhs | #77 | 2 |
| uranus the planet | #82 | 2 |
| astronomy on tap | #54 | 2 |
| seizoenen | #5 | 2 |
| sterrenbeeld | #10 | 2 |
| stephen hawking black hole theory | #56 | 2 |
| planets uranus | #94 | 2 |
| het telescope | #94 | 2 |
| het telescope | #64 | 2 |
| elt telescope | #74 | 2 |
| ring sphere | #72 | 1 |
| spectrum van | #88 | 1 |
| sron | #88 | 1 |
| stephen hawking black holes | #78 | 1 |
| stephen hawking black hole | #80 | 1 |
| stephen hawking and black holes | #95 | 1 |
| lego telescope | #61 | 1 |
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
- 87% phone
- 10% desktop
- 4% tablet
Netherlands
Belgium
Germany
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.02 / 10 · ranked #108,685 of all domains
207 referring domains · OpenPageRank
Search traffic
860 est. monthly organic visits (US)
97 keywords in Google's top 30
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 3.4 MB · 42 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on PROCOLIX (95.215.188.54)
- DNS: argewebhosting.eu
- Email: leidenuniv.nl
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 64,006, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted