Report - FastCache by host.it 1.5.6

Does FastCache by host.it work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on 2025-12-17 11:50:22 UTC.

Summary

Errors

12	PHP warnings
1	PHP deprecation warnings
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 221.07 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

Environment

WordPress version	6.9
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-04-14T18:03:00+00:00
Active installs	300+
WordPress.org page	https://wordpress.org/plugins/fastcache-by-host-it/
Badges	Get badge code

Pages 5

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=fastcache-by-host-it%2Ffastcache.php&plugin_status=all&paged=1&s&_wpnonce=4237d6b93e
Aspect	after-activation
HTTP status	200
Load time	0.321 s
Memory usage	3.94 MiB
JS errors	None
Resource errors	None

Settings → FastCache Settings

URL	/wp-admin/options-general.php?page=fastcache
Aspect	menu-item
HTTP status	200
Load time	0.708 s
Memory usage	4.98 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.175 s
Memory usage	4.31 MiB
JS errors	None
Resource errors	None

Add Page ‹ Test site — WordPress

URL	/wp-admin/post-new.php?post_type=page
Aspect	new-meta-boxes
HTTP status	200
Load time	0.657 s
Memory usage	6.57 MiB
JS errors	None
Resource errors	None

Add Post ‹ Test site — WordPress

URL	/wp-admin/post-new.php
Aspect	new-meta-boxes
HTTP status	200
Load time	0.607 s
Memory usage	6.58 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.394 s	0.352 s	-0.042 s	3.77 MiB	3.98 MiB	+ 213.78 KiB
/wp-admin/edit.php	0.315 s	0.348 s	+0.033 s	3.78 MiB	4.03 MiB	+ 259.92 KiB
/wp-admin/post-new.php	0.702 s	0.791 s	+0.089 s	6.3 MiB	6.59 MiB	+ 290.66 KiB
/wp-admin/upload.php	0.405 s	0.383 s	-0.022 s	3.74 MiB	3.92 MiB	+ 188.72 KiB
/wp-admin/options-writing.php	0.394 s	0.268 s	-0.126 s	3.71 MiB	3.9 MiB	+ 193.02 KiB
/wp-admin/media-new.php	0.465 s	0.484 s	+0.019 s	3.7 MiB	3.9 MiB	+ 201.22 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.298 s	0.291 s	-0.007 s	3.71 MiB	3.92 MiB	+ 211.58 KiB
/wp-admin/post-new.php?post_type=page	0.611 s	0.646 s	+0.035 s	6.29 MiB	6.57 MiB	+ 284.16 KiB
/wp-admin/options-discussion.php	0.409 s	0.326 s	-0.083 s	3.71 MiB	3.9 MiB	+ 189.21 KiB
/wp-admin/edit-comments.php	0.282 s	0.289 s	+0.007 s	3.73 MiB	3.92 MiB	+ 189.02 KiB
/	0.353 s	0.194 s	-0.159 s	4.1 MiB	4.31 MiB	+ 210.5 KiB
Average	0.421 s	0.397 s	-0.023 s	4.23 MiB	4.45 MiB	+ 221.07 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.

PHP

CSS

PO File

JavaScript

Language		%	Lines of code	Comment lines	Files
	PHP	70.9%	16,852	5,647	128
	CSS	11.8%	2,797	372	7
	PO File	9.0%	2,143	1,587	1
	JavaScript	8.2%	1,959	339	17
	HTML	0.1%	20	0	3
	SVG	0.0%	1	0	1
Total			23,772	7,945	157

PHP Code Analysis | More results »

Lines of code	16,543
Total complexity	3,290
Median class complexity	17.0
Median method complexity	1.0
Most complex class	FastCache\Core\SimpleHtmlDomNode
Most complex function	FastCache\Core\LightImages::processImageNodes()

Classes	101
Methods	953
Functions	9

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

fastcache_version

Meta Boxes

{
    "page": {
        "fastcache": {
            "title": "Host Caching",
            "context": "side"
        }
    },
    "post": {
        "fastcache": {
            "title": "Host Caching",
            "context": "side"
        }
    }
}

PHP Error Log 13 lines

[17-Dec-2025 11:50:40 UTC] PHP Deprecated:  Automatic conversion of false to array is deprecated in /wp-content/plugins/fastcache-by-host-it/src/Admin/Settings/Renderer/Setting.php on line 674
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Html/Callbacks/CombineJsCss.php on line 81
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[17-Dec-2025 11:50:41 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163

FastCache by host.it 1.5.6