PluginSift

WebSub (FKA. PubSubHubbub) vs ActivityPub (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

WebSub (FKA. PubSubHubbub)

WebSub (FKA. PubSubHubbub)

5(6)

100K+ active installs

Free

Updated 2 months ago
View WebSub (FKA. PubSubHubbub)
VS
ActivityPub

ActivityPub

4.9(39)

6.0K+ active installs

Free

Updated 2 weeks ago
View ActivityPub

Quick Verdict

As of April 2026, WebSub (FKA. PubSubHubbub) has a higher user rating (5/5 from 6 reviews) and leads in active installations (100K+ vs 6.0K+). Both are free WordPress plugins. WebSub (FKA. PubSubHubbub) has accumulated 2.1M+ total downloads while ActivityPub has 502K+.

Detailed Comparison

Rating
5/5WebSub (FKA. PubSubHubbub)
◄
ActivityPub4.9/5
Total Reviews
6WebSub (FKA. PubSubHubbub)
►
ActivityPub39
Active Installs
100K+WebSub (FKA. PubSubHubbub)
◄
ActivityPub6.0K+
Total Downloads
2.1M+WebSub (FKA. PubSubHubbub)
◄
ActivityPub502K+
Support Resolution
N/AWebSub (FKA. PubSubHubbub)
ActivityPub75%
Last Updated
2 months agoWebSub (FKA. PubSubHubbub)
►
ActivityPub2 weeks ago
First Released
2009WebSub (FKA. PubSubHubbub)
ActivityPub2018
Age
17 yearsWebSub (FKA. PubSubHubbub)
ActivityPub8 years
WP Requires
4.5+WebSub (FKA. PubSubHubbub)
ActivityPub6.5+
PHP Requires
7.2+WebSub (FKA. PubSubHubbub)
ActivityPub7.4+
Business Model
FreeWebSub (FKA. PubSubHubbub)
ActivityPubFree
Latest Version
4.0.0WebSub (FKA. PubSubHubbub)
ActivityPub8.0.2

Rating Breakdown

WebSub (FKA. PubSubHubbub)

5/5(6 reviews)
5
100%
4
0%
3
0%
2
0%
1
0%

ActivityPub

4.9/5(39 reviews)
5
90%
4
8%
3
3%
2
0%
1
0%

Recent Reviews

WebSub (FKA. PubSubHubbub) Reviews

by totalgaz

Works No Problems

Just learnt more on the benefits of using WebSub a.k.a PubSubHubbub and love that this plugin did the necessary code to the feed instantly. I can see it worked as a newly published blog was discovered

by upgradeorid

Good Plugin

Good and simple plugin

by dmsr

Indispensable?

Je l’installe systématiquement depuis bien longtemps sur tous mes sites!

ActivityPub Reviews

by Chuck Grimmett

Makes my WP posts look great in the fediverse

Great plugin with regular updates. Does what it says on the label, and does it well. It makes my WP posts look great in the fediverse and boost, replies, and likes quickly make their way back to my si

by 김지운

Thank You for Making Fediverse Connections Possible

As someone working on the Korean translation of this plugin, I have seen first-hand how important it is for WordPress users to connect with the Fediverse. This plugin provides a bridge that makes such

by Writeworks

Worked out of the box. Brilliant.

I’ve installed and setup other ActivityPub servers usually some time & testing required along with tweaks. However with the WP ActivityPub plug-in it, surprisingly, functioned properly <gasp!> ri

Frequently Asked Questions

Is WebSub (FKA. PubSubHubbub) or ActivityPub more popular?
WebSub (FKA. PubSubHubbub) has 100K+ active installations while ActivityPub has 6.0K+. WebSub (FKA. PubSubHubbub) is the more widely-used plugin as of April 2026.
Which has better ratings — WebSub (FKA. PubSubHubbub) or ActivityPub?
WebSub (FKA. PubSubHubbub) has a 5/5 rating from 6 reviews, while ActivityPub has a 4.9/5 rating from 39 reviews.
Are WebSub (FKA. PubSubHubbub) and ActivityPub free?
WebSub (FKA. PubSubHubbub) is free and ActivityPub is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — WebSub (FKA. PubSubHubbub) or ActivityPub?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
WebSub (FKA. PubSubHubbub) was last updated 2 months ago and ActivityPub was last updated 2 weeks ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.