Head-to-head · October 2026
Speculative Loading vs WpOnError
Speculative Loading comes out ahead, winning 6 of 7 head-to-head checks against WpOnError.
Speculative Loading
This plugin adds support for the Speculation Rules API, which allows defining rules by which certain URLs are…
WpOnError
This package is compatible with WordPress Coding Standards, PSR-4, Prettier, StandardJS and LibreJS.
| Metric | Speculative Loading | WpOnError |
|---|---|---|
| Active installs | 70K+ | <10 |
| Downloads (30 days) | 18.4K | 48 |
| Download trend | -60.1% | +118.2% |
| Rating | 5/5 | — |
| Reviews | 18 | 0 |
| Health score | 86/100 | 21/100 |
| Last updated | 2 months ago | 4 years ago |
| Tested up to | WP 7.1.3 | WP 6.0.17 |
| Support resolved | 100% | — |
| Requires PHP | 7.4+ | 7.0+ |
| First released | Jan 2024 | Jul 2021 |
Daily downloads, last 90 days
Speculative LoadingWpOnError
Choose Speculative Loading if…
You care most about active installs, downloads (30 days) and reviews.
- Proven at scale on 70K+ active sites
- Tested with the latest WordPress (7.1)
Choose WpOnError if…
You care most about download trend.
- Small user base (<10 active installs)
- Very few reviews so far
- No update in 4 years
- Only tested up to WordPress 6.0 (latest is 7.1)
Both compete in: javascript
FAQ
Speculative Loading vs WpOnError: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 12, 2026
Which is better, Speculative Loading or WpOnError?
Speculative Loading comes out ahead, winning 6 of 7 head-to-head checks against WpOnError. Choose Speculative Loading if you care most about active installs, downloads (30 days) and reviews. Choose WpOnError if you care most about download trend.
Is Speculative Loading more popular than WpOnError?
Speculative Loading is the more popular of the two with 70K+ active installs, compared with <10 for WpOnError.
Can I use Speculative Loading and WpOnError together?
Both plugins cover javascript, so most sites only need one. Running two plugins that do the same job can cause conflicts and slow your site down — pick the one that fits best and remove the other.
Are Speculative Loading and WpOnError free?
Yes. Both are free to download from the official WordPress.org plugin directory. Either may also offer paid upgrades from its developer.
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