Kalendář / Calendar
by Webster.K · Booking & Events
CZ
46 health vs 66 average across 745 Booking & Events plugins
High removal-risk signals
63/100Maintenance and integrity signals that tend to precede a WordPress.org removal. Not an official status, a heads-up to act.
- Long abandoned. No update in 11+ years — the top precursor to removal once a vulnerability is found.
- Compatibility drift. Tested only up to WordPress 4.1.42, well behind 6.8.
Directory ranking optimization
How it's scored →How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.
Under-optimized
Biggest win: Update recency
To rank higher: Last updated 4083 days ago — ship an update; wp.org decays a listing's search weight after ~180 days.
Get the full rank-higher report →Daily downloads
Since 2022-10-05 · 1,381 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peaks are release surges
57
now · peak 151
Directory rank vs rivals
wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you
Downloads per 1k installs · 30d
Engagement proxy · release spikes are signal, a long slide is an aging base
Estimated active installs
wp.org reports only “100+”. The real number sits in this band.
Modeled within the band wp.org reports; tightens as we track daily.
Install history · since 2022-10-04 · 1,377 observations
Details
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2026-07-10 200+ → 100+ down after 872 days in tier
- 2024-02-19 300+ → 200+ down after 1 days in tier
- 2024-02-18 200+ → 300+ up after 2 days in tier
- 2024-02-16 300+ → 200+ down after 1 days in tier
- 2024-02-15 200+ → 300+ up after 1 days in tier
- 2024-02-14 300+ → 200+ down after 1 days in tier
- 2024-02-13 200+ → 300+ up after 3 days in tier
- 2024-02-10 300+ → 200+ down after 2 days in tier
Competes with
The plugins that solve the same job, ranked by shared tags then reach — closest match first
-
Recent Posts Widget With Thumbnails 100K+ installs · 4.8★ · 2 shared tags A -
Image Widget 100K+ installs · 4.8★ · 2 shared tags A -
Custom Sidebars – Dynamic Sidebar Classic Widget Area Manager 100K+ installs · 4.7★ · 2 shared tags A -
Fixed Widget and Sticky Elements for WordPress 80K+ installs · 4.7★ · 2 shared tags D -
Content Aware Sidebars – Fastest Widget Area Plugin 30K+ installs · 4.9★ · 2 shared tags A -
Meks Simple Flickr Widget 20K+ installs · 4.0★ · 2 shared tags D
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<iframe src="https://plugins.wpmayor.com/embed/kalendar-cz" width="480" height="300" style="border:0" loading="lazy" title="Kalendář / Calendar — Plugin Pulse"></iframe> Kalendář / Calendar: 100+ active installs, 5.0★ (3 reviews). Plugin Pulse (WP Mayor), as of 2026-07-17. https://plugins.wpmayor.com/plugin/kalendar-cz