What powers 
utrechtsummerschool.nl?
Last seen Sep 2026 · 25 technologies across 18 categories
Analytics
CDN
CMS
Documentation
Ecommerce
Font scripts
JavaScript libraries
Operating systems
Programming languages
Retargeting
Reverse proxies
Security
Tag managers
UI frameworks
Video players
Web frameworks
Web servers
Widgets
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 applebot removed from robots.txt
- Sep 2026 applebot added to robots.txt
- Aug 2026 applebot removed from robots.txt
- Aug 2026 applebot added to robots.txt
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| utrecht | #31 | 70 |
| utrecht netherlands | #52 | 21 |
| holland utrecht university | #19 | 15 |
| holland utrecht university | #87 | 11 |
| university of utrecht | #13 | 5 |
| ucu utrecht | #40 | 3 |
| international law and human rights | #75 | 3 |
| florence italy renaissance art | #36 | 3 |
| hildegard von bingen music | #95 | 2 |
| communication skills training courses | #80 | 1 |
| train from amsterdam airport to utrecht | #14 | 1 |
| what is multivariate analysis | #64 | 1 |
| asreview | #16 | 1 |
| social summer | #33 | 1 |
| summer design | #75 | 1 |
| just futures | #31 | 1 |
| 20th century europe | #14 | 1 |
| bank introduction | #61 | 0 |
| catholic university summer courses | #80 | 0 |
| causal inference course | #28 | 0 |
| class for communication skills | #93 | 0 |
| closest airport to utrecht | #58 | 0 |
| coaching netherlands | #37 | 0 |
| contemporary europe | #62 | 0 |
| systematic ai | #58 | 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
- 54% desktop
- 46% phone
Netherlands
Ghana
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.02 / 10 · ranked #108,671 of all domains
199 referring domains · OpenPageRank
Search traffic
140 est. monthly organic visits (US)
153 keywords in Google's top 30
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 2.1 MB · 49 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Oct 2005 (21 years) via team.blue nl B.V.
- Hosted on TransIP (136.144.187.242)
- DNS: TransIP
- Email: transip.email
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 36,495, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.utrechtsummerschool.nl | 13 |
| utrechtsummerschool.nl | 12 |
| support.utrechtsummerschool.nl | 10 |