What powers ithaka-isk.nl?
Last seen Aug 2026 · 12 technologies across 11 categories
Advertising
Microsoft Advertising
since Feb 2025
Analytics
Google Analytics
since Mar 2020
CDN
Amazon S3
since Feb 2025
Cookie compliance
Microsoft 365
since Aug 2022
Sendgrid
since Aug 2022
Font scripts
Google Font API
since Mar 2020
JavaScript libraries
Swiper
since Sep 2022
Miscellaneous
Open Graph
since Sep 2022
PaaS
Amazon Web Services
since Feb 2025
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Dec 2021
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
AI Crawlers
No AI crawlers blocked
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.21 / 10 · ranked #1,255,431 of all domains
25 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 0.7 MB · 21 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on INFOSUPPORT4 (185.101.41.31)
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 11,976,189
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted