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Open Search

by Matthias Pfefferle · Search

Also makes 6 other plugins · 3.1K+ installs across the portfolio →

Create an OpenSearch Document for your blog.

⚠ Few reviews
How scoring works →
86 Health · A
Maintenance 100/100
Rating quality 80/100
Support 70/100

86 health vs 60 average across 606 Search plugins

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.

89 / 100

Excellent listing optimization

Biggest win: Rating quality

Update recency 100/100
WP compatibility 100/100
Rating quality 55/100
Listing tuning 100/100

To rank higher: Too few reviews to rank on quality — nudge happy users to leave one.

Get the full rank-higher report →

Daily downloads

Since 2022-10-05 · 1,426 days · wp.org + Plugin Pulse archive

+97% vs prior 30d
3Downloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

132

now · peak 331

13230d downloads · Aug 26

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

Open Search · #11957 you OpenSearch · #26185 Search Regex · #289 Relevanssi · #349

Update activity

How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.

660per 1k installs · Aug 26

Release cadence

Occasionally updated
from wp.org release tags

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

1

releases in the last 12 months

3mo ago

latest release · v4.1.3

21

tagged releases on record

Recent releases

4.1.3 · 3mo ago4.1.2 · 1.8y ago4.1.1 · 2.1y ago4.1.0 · 2.6y ago4.0.1 · 2.6y ago4.0.0 · 2.8y ago3.0.3 · 4.3y ago3.0.2 · 6.1y ago3.0.1 · 8.6y ago3.0.0 · 9.9y ago2.1.2 · 10.8y ago2.1.1 · 11.0y ago2.1.0 · 11.0y ago2.0.0 · 11.1y ago

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 68% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v4.1 68%
v4.0 23%
v3.0 8.5%

Estimated active installs

The public count shows “200+”. Our estimate pins where the real number sits.

tracked estimate
200–300 ≈290

Refined from the date this plugin crossed into its current band.

Install history · since 2015-08-20 · 1,390 observations

200Installs · Aug 26

Estimated value

What this plugin might earn a year, and what it might sell for. Modeled from public signals; we don't see anyone's books.

Est. annual revenue

N/A

Est. acquisition value

N/A

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

Details

Version
4.1.3
Last updated
10d ago
Added
2007-06-24 · 19 yrs old
Requires WP
4.6
Tested up to
7.1
Requires PHP
7.4

Recent reviews

All reviews on wp.org ↗
  1. Marc Bernard
    6.4y ago

    Thanks for this nifty plugin! Perfect! You might want to add some documentation since it’s very hidden how it works. 1) After activating the plugin, a <link rel=”search”> tag is added to the header of your webpages. 2) This link points to https://domain.com/wp-json/opensearch/1.1/document and produces an XML document. 3) This document.osdx contains the OpenSearch specification for your website. 4) An additional use case, is downloading this file to your Windows machine. Then you can double-click it to install a search connector to Windows. This lets you search your own website directly from your Windows and Explorer search bars. Just type the first letters of your website name to get it going! Best, Marc

    Read on wp.org ↗
  2. Saleswonder Team: Tobias
    8.6y ago

    Maybe an gif animation for the visitors which is linked to a desccription howto use would be nice. i would like to translate to german.

    Read on wp.org ↗
  3. ok2vvv
    8.6y ago

    Plugin works exactly as it should. I was looking for a plugin that activates on the web in google chrome search using the TAB key. Thanks a lot.

    Read on wp.org ↗
  4. rinma
    9.4y ago

    This plugin is easy to use. Install it and it works 🙂

    Read on wp.org ↗

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 6.7.1

Low memory footprint
Low page-speed impact
Runs on latest PHP + WP
No PHP errors
No JS errors
Activates cleanly
No resource errors
No external HTTP errors
Optimized database use
Frequently updated

Languages

via translate.wordpress.org

Translated into 2 languages, 0 at 90% or more

German 80%
German (Formal) 80%

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

  1. 2025-10-13 300+ → 200+ down after 917 days in tier
  2. 2023-04-10 200+ → 300+ up after 19 days in tier
  3. 2023-03-22 300+ → 200+ down after 76 days in tier
  4. 2023-01-05 200+ → 300+ up

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

Compare head to head →

Embed this report card

Drop a live Pulse card for Open Search into a readme, a review or a deck. It updates itself.

<iframe src="https://plugins.wpmayor.com/embed/open-search-document" width="480" height="300" style="border:0" loading="lazy" title="Open Search — Plugin Pulse"></iframe>
Preview card ↗

Open Search: 200+ active installs, 5.0★ (4 reviews). Plugin Pulse (WP Mayor), as of 2026-08-31. https://plugins.wpmayor.com/plugin/open-search-document