What powers 
root.cern?
Last seen Aug 2026 · 6 technologies across 5 categories
Font scripts
JavaScript graphics
JavaScript libraries
Miscellaneous
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 |
|---|---|---|
| hist | #74 | 2,100 |
| root commands | #1 | 300 |
| histogram | #94 | 280 |
| root cern | #1 | 150 |
| root software | #1 | 120 |
| cern root | #1 | 73 |
| root matrix | #3 | 57 |
| root file | #1 | 52 |
| tgraph | #2 | 35 |
| ttree | #2 | 34 |
| pyroot | #1 | 33 |
| macro root | #1 | 30 |
| rooted file | #2 | 28 |
| file root | #2 | 28 |
| root download | #1 | 26 |
| python root | #2 | 23 |
| trandom | #3 | 19 |
| tfile | #2 | 18 |
| root computing | #2 | 18 |
| tgraph | #4 | 14 |
| tstring | #2 | 14 |
| nightlies | #8 | 13 |
| root install | #1 | 12 |
| sqrt latex | #15 | 12 |
| install root cern | #1 | 12 |
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
- 76% desktop
- 24% phone
India
Italy
Germany
Japan
United States
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.53 / 10 · ranked #154,895 of all domains
147 referring domains · OpenPageRank
Search traffic
4,100 est. monthly organic visits (US)
960 keywords in Google's top 30
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 2.6 MB · 32 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CERN (137.138.6.72, IPv6)
- DNS: cern.ch
- Email: no MX record returned
- SSL: Sectigo, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 496,460
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted