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2. NitroPack – Performance, Page Speed & Cache Plugin for Core Web Vitals, CDN & Image Optimization
3. 1.19.4 (latest)

NitroPack 1.19.4

Does NitroPack work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on 2026-04-21 08:18:51 UTC.

Summary

Pages 5

NitroPack Options ‹ Test site — WordPress

NitroPack

NitroPack → System Report

Test site – Just another WordPress site

Add Post ‹ Test site — WordPress

Benchmark

URL	Load time			Memory usage
	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.413 s	0.476 s	+0.063 s	3.78 MiB	4.03 MiB	+ 264.39 KiB
/wp-admin/edit.php	0.342 s	0.357 s	+0.015 s	3.78 MiB	4.11 MiB	+ 331.67 KiB
/wp-admin/post-new.php	0.825 s	0.860 s	+0.035 s	6.31 MiB	6.67 MiB	+ 374.04 KiB
/wp-admin/upload.php	0.628 s	0.408 s	-0.220 s	3.74 MiB	3.99 MiB	+ 256.13 KiB
/wp-admin/options-writing.php	0.308 s	0.324 s	+0.016 s	3.71 MiB	3.96 MiB	+ 256.13 KiB
/wp-admin/media-new.php	0.506 s	0.529 s	+0.023 s	3.7 MiB	3.95 MiB	+ 256.13 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.299 s	0.347 s	+0.048 s	3.72 MiB	4 MiB	+ 286.77 KiB
/wp-admin/post-new.php?post_type=page	0.747 s	0.687 s	-0.060 s	6.3 MiB	6.6 MiB	+ 314.98 KiB
/wp-admin/options-discussion.php	0.319 s	0.474 s	+0.155 s	3.71 MiB	3.96 MiB	+ 256.13 KiB
/wp-admin/edit-comments.php	0.306 s	0.343 s	+0.037 s	3.73 MiB	3.98 MiB	+ 256.13 KiB
/	0.268 s	0.204 s	-0.064 s	4.11 MiB	4.33 MiB	+ 223.7 KiB
Average	0.451 s	0.455 s	+0.004 s	4.24 MiB	4.51 MiB	+ 279.65 KiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

Language		%	Lines of code	Comment lines	Files
	PHP	77.1%	18,153	2,687	187
	JavaScript	10.0%	2,365	156	13
	Sass	8.8%	2,069	28	13
	PO File	3.3%	777	344	1
	SVG	0.8%	188	0	27
	JSON	0.0%	2	0	2
Total			23,554	3,215	243

PHP Code Analysis | More results »

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Options wp_options 1

• nitropack-distribution

Meta Boxes

{
    "post": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    },
    "home": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    },
    "archive": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    },
    "page": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    },
    "attachment": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    },
    "category": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    },
    "post_tag": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    },
    "post_format": {
        "nitropack_manage_cache_box": {
            "title": "NitroPack",
            "context": "side"
        }
    }
}

PHP Error Log

The log file is empty.

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