What powers opera-academy.nl?
Last seen Jul 2026 · 16 technologies across 12 categories
Analytics
Google Analytics
since Feb 2022
CMS
Databases
MySQL
since Feb 2022
Font scripts
Google Font API
since Feb 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Operating systems
Debian
since Feb 2022
Programming languages
PHP
since Feb 2022
Security
HSTS
since Sep 2022
SEO
Video players
Web servers
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
AI Crawlers
No AI crawlers blocked
Open Page Rank
3.01 / 10 · ranked #1,577,638 of all domains
22 referring domains · OpenPageRank
Page
- Language: English (United Kingdom)
- Weight: 9.8 MB · 50 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Dutch National Opera Academy
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on OPENFIBER (185.40.97.42, IPv6)
- DNS: surfnet.nl
- Email: no MX record returned
- Email security: DNSSEC signed
- SSL: Trust Provider B.V., RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 15,988,560, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted