What powers e-tandem.ch?
Last seen Aug 2026 · 16 technologies across 10 categories
Font scripts
Google Font API
since Apr 2023
Hosting
Infomaniak
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Jul 2026
PWA
since Aug 2022
Operating systems
Debian
since Jul 2026
Windows Server
since Dec 2021
Programming languages
Python
since Jul 2026
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Dec 2021
Web frameworks
Django
since Jul 2026
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.30 / 10 · ranked #1,129,232 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 1.0 MB · 28 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Infomaniak (91.214.191.158, IPv6)
- DNS: infomaniak.com
- Email: no MX record returned
- Email security: DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 10,541,651, 6 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| public.e-tandem.ch | 10 |
| edu.e-tandem.ch | 7 |
| www.e-tandem.ch | 7 |