What powers 
sonar.ch?
Last seen Aug 2026 · 8 technologies across 6 categories
Analytics
CDN
Font scripts
Miscellaneous
Security
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 |
|---|---|---|
| reactive gastropathy | #51 | 9 |
| pemphigus vulgaris vs bullous pemphigoid | #82 | 9 |
| pemphigus vulgaris vs bullous pemphigoid | #82 | 9 |
| teuro | #4 | 6 |
| background extinction rate | #52 | 3 |
| accommodation communication | #64 | 3 |
| schamroth sign | #45 | 2 |
| spironolactone rosacea | #17 | 2 |
| pop-in ch | #72 | 2 |
| pollyanna effect | #35 | 2 |
| psc ulcerative colitis | #49 | 2 |
| laophis crotaloides | #10 | 2 |
| microcomedones | #25 | 2 |
| gluteus minimus function | #14 | 2 |
| gluteus minimus action | #79 | 2 |
| eurhinosaurus | #32 | 2 |
| yale endowment 2024 | #21 | 1 |
| bethlehem landscape | #60 | 1 |
| bullard laryngoscope | #23 | 1 |
| charcot-wilbrand | #51 | 1 |
| charcot wilbrand | #53 | 1 |
| chemical gastropathy | #27 | 1 |
| suspensory ligament of uterus | #65 | 1 |
| tbs medical abbreviation | #63 | 1 |
| surveillance bias | #54 | 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
- 75% desktop
- 25% phone
France
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.30 / 10 · ranked #202,597 of all domains
92 referring domains · OpenPageRank
Search traffic
88 est. monthly organic visits (US)
442 keywords in Google's top 30
Core Web Vitals
| LCP | 1.4 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.3 MB · 10 requests
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- SONAR Swiss open access repository
- Country: Switzerland
From Wikidata (CC0).
Infrastructure
- Hosted on SWITCH Switch, Swiss Academic and Research Network (153.109.157.125)
- DNS: sonar.ch
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 1,161,140, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted