wp.org search vs our merit ranking: “booking slot”

wp.org orders by popularity, so a plugin a host bundled onto millions of sites, or a big-brand one that's slow and mediocre, can sit at the top. Our ranking is built to answer a different question: which of these is actually worth installing. How this works →

For “booking slot”, we and wp.org disagree on the top plugin, and our order differs from theirs on 7 of the top 20.

wp.org search ranks on

Install count (uncapped), the raw star average, freshness, and support. Popularity dominates, so the biggest install base usually wins regardless of how it got there.

We add

A cap on the install boost, volume-weighted ratings, and signals wp.org can't see: whether the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

Time Slot – Booking and Appointment System shows at wp.org #15 but places #22 on merit, a gap of 7 places. Its 100+ installs carry it up the search order; its 5.0★ average from 4 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

How this rank is calculated

Each plugin's merit score multiplies these inputs together: how recently it was updated, how current its "tested up to" WordPress version is, its install base (log scale, capped at 10 million), its support thread resolution rate, and a rating score. The rating score weights the star average by review volume against a sitewide prior, then scales it by the lower bound of the share of 4 and 5 star reviews. A plugin with 3.7 stars from tens of thousands of reviews can still outscore a 4.9 with a few dozen, because the small sample carries less certainty.

A health factor between 0.4 and 1.15 then adjusts that score for what wp.org's search can't see: PHP fatals or failed activations on a test install, PHP and WordPress compatibility, memory and page-speed footprint, suspicious review patterns, closure risk, and a large install base with very few reviews. Clean, adopted plugins earn a small lift.

A keyword ranking starts from wp.org's search order for the term, weighting each position by 1 divided by its place, then applies the merit correction and health factor above. Relevance to the keyword stays in the result, so the order can differ from the all-categories list on /best, which scores plugins with no search term.

Hover a row to see the main reason for its position.

merit plugin signals wp.org

Events Manager – Calendar, Bookings, Tickets, Appointments and more! 60K+ · 4.2★ (551) wp.org #2 ↓1 wp.org ranks it 1 place below merit 2

Booking Calendar 40K+ · 4.8★ (657) wp.org #3 ↓1 wp.org ranks it 1 place below merit 3

Appointment Hour Booking – Booking Calendar 10K+ · 4.9★ (524) wp.org #4 ↑2 wp.org ranks it 1 place below merit 4

Booking Package 10K+ · 4.0★ (15) thin reviews wp.org #1 ↑2 wp.org ranks it 3 places above merit 5

Booking for Appointments and Events Calendar – Amelia 90K+ · 4.6★ (793) wp.org #5 ↓1 6

Booking Activities 3K+ · 5.0★ (121) wp.org #6 ↓1 7

Easy Appointment Booking & Scheduling Plugin – Webba Booking Calendar 2K+ · 4.9★ (159) wp.org #7 8

WP Booking System – Booking Calendar 10K+ · 4.9★ (344) wp.org #10 ↑1 wp.org ranks it 2 places below merit 9

Online Scheduling and Appointment Booking System – Bookly 60K+ · 4.4★ (586) wp.org #11 ↑1 wp.org ranks it 2 places below merit 10

Salon Booking System – Appointment Booking for Salons, Barbershops & Spas 2K+ · 4.4★ (187) wp.org #8 wp.org ranks it 2 places above merit 11

Five Star Restaurant Reservations – WordPress Booking Plugin 10K+ · 4.7★ (211) wp.org #13 wp.org ranks it 2 places below merit 12

WP Time Slots Booking Form 1K+ · 5.0★ (41) wp.org #9 ↑1 wp.org ranks it 3 places above merit 13

Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution 20K+ · 4.7★ (46) wp.org #12 ↓3 wp.org ranks it 1 place above merit 14

Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress 100K+ · 4.9★ (107) wp.org #17 ↑1 wp.org ranks it 3 places below merit 15

Appointment Booking Calendar 1K+ · 4.2★ (92) wp.org #16 ↑1 wp.org ranks it 1 place below merit 16

Easy Booking – WooCommerce Booking & Reservation Plugin 4K+ · 4.7★ (63) wp.org #21 ↓7 wp.org ranks it 5 places below merit 17

Pinpoint Booking System – Legacy version 2K+ · 3.6★ (185) wp.org #20 wp.org ranks it 3 places below merit 18

E-cab Taxi Booking Manager for Woocommerce 2K+ · 4.9★ (28) wp.org #19 wp.org ranks it 1 place below merit 19

Hydra Booking — Appointment Scheduling & Booking Calendar 2K+ · 4.4★ (9) thin reviews wp.org #14 ↓1 wp.org ranks it 6 places above merit 21

Rox Appointment Booking – Event, Calendar & Appointment Scheduling 2K+ · 5.0★ (7) thin reviews wp.org #18 ↓2 wp.org ranks it 3 places above merit 22

Time Slot – Booking and Appointment System 100+ · 5.0★ (4) thin reviews wp.org #15 wp.org ranks it 7 places above merit 23

Booking Manager – Sync WP Booking Calendar – Import Events, Export Bookings to ICS Calendar 5K+ · 4.0★ (2) thin reviews wp.org #24 ↓2 wp.org ranks it 1 place below merit 24

SimplyBook.me – Booking and reservations calendar 30K+ · 1.0★ (1) thin reviews wp.org #22 ↓1 wp.org ranks it 2 places above merit

Merit ranking caps the install boost at 10M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted score and a Wilson lower bound, and keeps wp.org's own freshness and compatibility decays. Method from the plugin-directory source; see Meta Trac #8298. Positions are tracked daily from the first visit to a keyword, so the small arrows show movement since tracking began.