Head-to-head · September 2026
Protect schema.org markup… vs Syntax Highlight
Protect schema.org markup i… comes out ahead, winning 5 of 7 head-to-head checks against Syntax Highlight.
Protect schema.org markup in HTML editor
WordPress HTML editor (tinyMCE) treats schema.org attributes like itemscope/itemtype/itemprop as invalid HTML…
| Metric | Protect schema.org markup… | Syntax Highlight |
|---|---|---|
| Active installs | 800+ | 200+ |
| Downloads (30 days) | 448 | 87 |
| Download trend | +5.4% | +42.6% |
| Rating | 5/5 | 5/5 |
| Reviews | 5 | 6 |
| Health score | 73/100 | 38/100 |
| Last updated | 2 months ago | 12 years ago |
| Tested up to | WP 7.0.6 | WP 3.9.40 |
| Support resolved | — | — |
| Requires PHP | Any | Any |
| First released | Jun 2016 | Jun 2014 |
Daily downloads, last 90 days
Protect schema.org mark…Syntax Highlight
Choose Protect schema.org markup… if…
You care most about active installs, downloads (30 days) and health score.
- Small user base (800+ active installs)
Choose Syntax Highlight if…
You care most about download trend and reviews.
- Small user base (200+ active installs)
- No update in 12 years
- Only tested up to WordPress 3.9 (latest is 7.1)
Both compete in: html-editor
FAQ
Protect schema.org markup… vs Syntax Highlight: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 29, 2026
Which is better, Protect schema.org markup i… or Syntax Highlight?
Protect schema.org markup i… comes out ahead, winning 5 of 7 head-to-head checks against Syntax Highlight. Choose Protect schema.org markup i… if you care most about active installs, downloads (30 days) and health score. Choose Syntax Highlight if you care most about download trend and reviews.
Is Protect schema.org markup i… more popular than Syntax Highlight?
Protect schema.org markup i… is the more popular of the two with 800+ active installs, compared with 200+ for Syntax Highlight.
Can I use Protect schema.org markup i… and Syntax Highlight together?
Both plugins cover html-editor, 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 Protect schema.org markup i… and Syntax Highlight 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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