How Smart Custom 404 Error Page Affects Your WordPress Speed
C
Estimated Speed Score
Measured Performance
Tested Feb 2026 · How we test
+2 ms
TTFB Impact
+0 MB
Memory Impact
+2
DB Queries
Plugin Overview
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Performance Analysis
Performance Impact
Smart Custom 404 Error Page receives an estimated speed score of C. Our real benchmark tests measured the following impact when activating this plugin:
- TTFB impact: +2 ms
- Memory impact: +0.0 MB
- Additional DB queries: +2
Overall activation impact: low. This plugin adds minimal overhead to your WordPress site.
Maintenance Status
Last updated: 2025-07-16. Requires PHP 5.4+. Trusted by 100K+ active installations.
Benchmark data measured in an isolated Docker environment (WordPress 6.8, PHP 8.3, GeneratePress). See our full methodology.
Alternatives to Smart Custom 404 Error Page
| Plugin | Speed Score | Active Installs |
|---|---|---|
| Elementor Website Builder – More Than Just a Page Builder | B- | 10M+ |
| Classic Editor | B- | 9M+ |
| Yoast Duplicate Post | C | 4M+ |
Frequently Asked Questions
Does Smart Custom 404 Error Page slow down WordPress?
Smart Custom 404 Error Page has an estimated speed score of C. It may noticeably affect your site speed. Consider alternatives if performance is critical.
Is Smart Custom 404 Error Page still maintained?
Smart Custom 404 Error Page was last updated on 2025-07-16. It has 100K+ active installations, indicating it is actively maintained and widely trusted.
What are the best alternatives to Smart Custom 404 Error Page?
Check our plugin reviews in the Other category for alternatives. We compare plugins side-by-side on speed, features, and user ratings to help you find the best fit.
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