WordPress plugin comparison
ActivityPub vs WebSub (FKA. PubSubHubbub)
At a glance
- WebSub (FKA. PubSubHubbub) has more active installs: 100K+, against 6K+ for ActivityPub.
- On a typical day, WebSub (FKA. PubSubHubbub) is downloaded about 272 times, ActivityPub about 90.
- WebSub (FKA. PubSubHubbub) is rated higher: 5.0 out of 5 from 6 reviews, against 4.9 from 40 reviews.
- ActivityPub was updated more recently: Nov 5, 2026, against Aug 21, 2026 for WebSub (FKA. PubSubHubbub).
- Both are tested up to WordPress 7.1.4.
- WebSub (FKA. PubSubHubbub) has been around longer: since 2009, against 2018 for ActivityPub.
Line by line
WebSub (FKA. PubSubHubbub) leads on 5 of 6 comparable lines.
| Metric |  ActivityPub |  WebSub (FKA. PubSubHubbub) |
|---|---|---|
| Popular rank | #2,739 | #386 |
| Active installs | 6K+ | 100K+ |
| Downloads, last 30 days | 1.6K | 10.8K |
| Rating | 4.9(40) | 5.0(6) |
| Support threads resolved | 100% | – |
| Tested up to | 7.1.4 | 7.1.4 |
| Search multiplier | ×1.07 | ×1.15 |
| Last release | 4 days ago | 2 months ago |
| Requires PHP | 7.4 | 7.4 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
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