What powers cem.es?
Last seen Jun 2026 · 23 technologies across 14 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| sistemas internacional de unidades | #2 | 34 |
| sistema de unidades internacional | #2 | 34 |
| sistema internacional de medidas | #2 | 11 |
| sistema de medidas internacional | #2 | 11 |
| unidades de medida | #12 | 8 |
| sistema de unidades | #4 | 6 |
| unidades de medida del sistema internacional | #2 | 5 |
| diferencia entre exactitud y precisin | #2 | 5 |
| que son las unidades | #12 | 4 |
| qu significa in en medidas | #11 | 4 |
| que es la unidad | #12 | 4 |
| todas las unidades de medida | #3 | 3 |
| todas las unidades de medida | #3 | 3 |
| unidades de medidas | #6 | 3 |
| que medida es inch | #5 | 3 |
| sistemas de medidas | #4 | 3 |
| pie de rey | #38 | 3 |
| precisin y exactitud | #4 | 3 |
| precisin vs exactitud | #3 | 3 |
| inch que significa | #8 | 3 |
| densidad del aire | #6 | 3 |
| densidad aire | #6 | 3 |
| unidades definicion | #8 | 2 |
| unidades de medicin | #8 | 2 |
| qu es un amperio | #11 | 2 |
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.
Audience
- 59% desktop
- 41% phone
Spain
Mexico
Argentina
Colombia
Peru
Venezuela
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.33 / 10 · ranked #183,568 of all domains
147 referring domains · OpenPageRank
Search traffic
190 est. monthly organic visits (US)
209 keywords in Google's top 30
Core Web Vitals
| LCP | 3.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 1.0 MB · 14 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.cem.es | 10 |
| aulavirtual.cem.es | 9 |
| congresodemetrologia.cem.es | 8 |
| rcm.cem.es | 7 |