Firefox
Theme
Cert4j Official Persona 1.0
by
cert4j · more by this developer →
Cert4j Official Persona 1.0 has 0 daily users, #268 of 3,817 in websites.
Daily users
0
Rating
unrated
0 ratings
Rank on Firefox
#52,576
of 129,266
Version
2.0
Last updated 05/13/2019
Weekly downloads
0
Description
Cert4j is a web system that helps in the study for Java certification. See more in www.cert4j.com.
Growth change in installs
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | Not enough history yet | |||
| month | Not enough history yet | |||
| year | Not enough history yet | |||
How these figures are measured
Change in installs, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.
Tracking since 09/28/2026. History accumulates as changes are observed — check back soon.
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