ActivityPub
by Automattic · Social
Also makes 78 other plugins · 18.2M+ installs across the portfolio →
Connect your site to the Open Social Web and let millions of users follow, share, and interact with your content from Mastodon, Pixelfed, and more.
Try it live opens a temporary test site in your browser, which can take about 20 seconds to load. Plugins that rely on outside services or a full server may not work completely there.
Health
A 90/100
no flags
Active installs
6K+
≈6.9K estimated
Momentum
-13%
downloads vs prior 30d
Biggest opportunity: Swap “social web” for “followers”. “social web” isn't earning its slot: it only gets you to #17. “followers” sits at #7 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
90 health vs 58 average across 1,834 Social plugins
Install conversion
How it's measured →1.0%
of downloads still active
At least 6K of 597.1K lifetime downloads are still running, above its category: the median Social plugin keeps 0.5%, across 1,276 plugins.
Downloads count every update, not just first installs, so older and more frequently released plugins read lower. Compare against other Social plugins, not across the directory. wp.org reports active installs as the bottom of a band, so the real rate is this or higher.
This plugin shipped 30 releases in the last 12 months, and every existing install that updated counted as another download. wp.org publishes no split between first installs and updates, so we show the raw rate rather than guess at one.
Details
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.
Excellent listing optimization
Well tuned across the board
Updated 2 days ago
Tested up to WordPress 7.1.4, the current branch or newer
4.9★ over 40 reviews, smoothed to 4.46★
5 of 5 tags set · short description in place
3 of 3 support threads resolved in the last 2 months
Search visibility
How it's tracked →Directory searches this plugin turns up in, and which way each one is moving. WordPress.org publishes no history of search positions, so this starts the day we first tracked a keyword and never backfills.
27
Momentum
Losing ground
-1.7
Velocity
places per keyword, 28d
6%
Breadth
of keywords climbing, 28d
-1.5
Acceleration
recent half vs earlier
wp.org is where the directory puts the plugin for that search. On merit is where it would sit if results were ranked on rating, support and updates, without the install boost. The last column is how far the wp.org position moved, from our first reading in the last 90 days to the latest.
| Keyword | wp.org | On merit | wp.org move, 90 days |
|---|---|---|---|
| activitypub your tag | #1 | #1 | 0 |
| fediverse your tag | #2 | #2 | 0 |
| activitystream your tag | #2 | #1 | 0 |
| pixelfed | #2 | #2 | 0 |
| indieweb your tag | #3 | #2 | 0 |
| mastodon | #7 | #9 | down 1 |
| interact | #8 | #13 | down 3 |
| followers | #7 | #11 | 0 |
| open social web | #11 | #18 | down 2 |
| follower | #8 | #13 | down 1 |
| social web your tag | #17 | #21 | down 5 |
| crossposting | #9 | #2 | down 1 |
| follow | #17 | #17 | down 6 |
| follow me | #20 | #19 | — |
| share draft | #24 | #19 | down 4 |
| social networking | #23 | #18 | down 5 |
| no follow | #18 | #20 | down 3 |
| follow back | #21 | #23 | down 1 |
103 searches this plugin appeared in over the last 90 days, 18 listed. 85 left out as unrelated or noise (years, numbers, stray words).
What to do about it
- Swap “social web” for “followers”. “social web” isn't earning its slot: it only gets you to #17. “followers” sits at #7 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
- Slipping on “social web”. Down 5 places since 2026-09-26, now #17. Check what shipped around then, and what moved above you.
Daily downloads
Since 5 Oct 2022 · 1,488 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 38.5K · peaks are release surges
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
Rating trend
Star average over time · dips mark rough releases
Health trend
Composite health score, snapshotted daily
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.
Release cadence
Actively maintainedHow often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.
30
releases in the last 12 months
2d ago
latest release · v9.4.0 · 29 Oct 2026
160
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin. Green is the current release; a big slice on older versions is a user base that has stopped updating.
Estimated active installs
The public count shows “6K+”. Our estimate pins where the real number sits.
Crossed into this band 2.4 years ago; a band this size takes about a year or more to cross, which places it about 90% of the way through.
Install history since 1 Mar 2019
Latest updates
via wp.org changelogRecent releases and news for this plugin
- 2026-10-29 Version 9.4.0 Security Accounts you blocked can no longer reply to, like, repost or quote your posts and comments. Improve the safety of imported Fediverse posts and comments. Improve verification of signing keys fetched from other se 9.4.0
- 2026-09-02 Version 9.3.1 Security Links to remote profiles in the Followers and Following blocks are now limited to regular web addresses when paging through the list. Replies cached on posts in the blog profile’s reader feed are no longer reada 9.3.1
- 2026-09-02 Version 9.3.0 Security Block markup in posts from remote accounts is now removed before the post is saved. Follow, reply and reaction links advertised by other Fediverse servers now have to be regular web addresses. Followers, cached 9.3.0
- 2026-08-11 Version 9.2.2 Fixed Fixed avatars and emoji occasionally failing to cache, and the file warnings that came with it. Fixed deletions from Mastodon and other servers not removing the corresponding comment on your site. Fixed some styles 9.2.2
- 2026-08-03 Version 9.2.1 Fixed Fixed duplicate entries and failed undo actions for activities received from other WordPress sites. Fixed posts and profiles not being found on Mastodon and other Fediverse software, which happened when a request a 9.2.1
- 2026-07-31 Version 9.2.0 Changed ActivityPub responses are now served only to clients that ask for ActivityPub data and nothing else, which keeps that data out of page caches meant for regular web pages. Only users enabled for ActivityPub can ob 9.2.0
Security history
via Wordfence IntelligenceAll 6 disclosed vulnerabilities are patched in the current version (9.4.0). Sites still on an older version should update.
- 2026-03-18 CVE-2026-4338 Exposure of Sensitive Information to an Unauthorized Actor Affects < 8.0.2 Patched in 8.0.2
- Patched Medium · 6.4 ActivityPub <= 0.17.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Content ↗2023-09-25 CVE-2023-3746 Improper Neutralization of Input During Web Page Generation Affects <= 0.17.0 Patched in 1.0.0
- Patched Medium · 6.4 ActivityPub <= 0.17.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via User Metadata ↗2023-09-25 CVE-2023-5057 Improper Neutralization of Input During Web Page Generation Affects <= 0.17.0 Patched in 1.0.0
- Patched Medium · 6.5 ActivityPub <= 0.17.0 - Authenticated (Subscriber+) Insecure Direct Object Reference to Sensitive Post Content Exposure ↗2023-09-25 CVE-2023-3707 Authorization Bypass Through User-Controlled Key Affects <= 0.17.0 Patched in 1.0.0
- Patched Medium · 4.3 ActivityPub <= 0.17.0 - Authenticated (Subscriber+) Insecure Direct Object Reference to Sensitive Post Title Exposure ↗2023-09-25 CVE-2023-3706 Authorization Bypass Through User-Controlled Key Affects <= 0.17.0 Patched in 1.0.0
Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.
CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.
Behavioral tests
via WP HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 7.0
Languages
via translate.wordpress.orgTranslated into 30 languages, 19 at 90% or more
Plus 6 more locales with partial translations.
AI assistants
How it's measured →Whether ChatGPT and Claude name this plugin when asked the category question, and whether the readme gives them something to quote.
Not measured yet for this plugin’s topics. Its tracked searches are not among the measured topics. See the topics measured so far.
Readme readiness
6 of 8 pass · checked 29 Oct 2026Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.
- ✓ Says what it does "Connect your site to the Open Social Web and let millions of users follow, share, and interact with your co..."
- ✓ Has a FAQ 7 questions in the FAQ.
- ✓ FAQ asks real questions 5 of 7 read like questions a user would type.
- ! Names who it is for Never says who the plugin is for or what they use it for.
- ✓ Names what it works with Mentions Yoast, Rank Math.
- ! Headings and lists 0 headings and 3 lists; assistants quote headed sections and bullet lists, not paragraphs.
- ✓ Enough to quote 3,983 characters of description.
- ✓ Tags match the text 3 of 5 tags appear in the text; "activitystream", "indieweb" do not.
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2024-06-21 5K+ → 6K+ up after 185 days in tier
- 2023-12-19 4K+ → 5K+ up after 67 days in tier
- 2023-10-13 3K+ → 4K+ up after 174 days in tier
- 2023-04-22 2K+ → 3K+ up after 129 days in tier
- 2022-12-14 1K+ → 2K+ up after 45 days in tier
- 2022-10-30 900+ → 1K+ up after 28 days in tier
- 2022-10-02 700+ → 900+ up after 182 days in tier
- 2022-04-03 600+ → 700+ up after 348 days in tier
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).
-
OpenWeb Icons — installs · 3.6★ · 3 shared tags -
NodeInfo(2) 900+ installs · 3.9★ · 2 shared tags B -
Enable Mastodon Apps 500+ installs · 3.9★ · 2 shared tags B -
Event Bridge for ActivityPub 70+ installs · 4.0★ · 2 shared tags B -
Pterotype 10+ installs · 3.6★ · 2 shared tags -
FediBoost 10+ installs · 4.0★ · 2 shared tags B
Embed this report card
Drop a live Pulse card for ActivityPub into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/activitypub" width="480" height="300" style="border:0" loading="lazy" title="ActivityPub — Plugin Pulse"></iframe> ActivityPub: 6K+ active installs, 4.9★ (40 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/activitypub
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