Report - FastCache by host.it 1.5.4

Does FastCache by host.it work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on 2025-12-15 20:56:22 UTC.

Summary

Errors

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

Performance

Memory usage: 212.73 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=68b8618fff
Aspect	after-activation
HTTP status	200
Load time	0.347 s
Memory usage	3.93 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	0.670 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	0.196 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	0.834 s
Memory usage	6.54 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	0.623 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	0.410 s	0.335 s	-0.075 s	3.77 MiB	3.98 MiB	+ 213.05 KiB
/wp-admin/edit.php	0.339 s	0.393 s	+0.054 s	3.78 MiB	3.98 MiB	+ 206.23 KiB
/wp-admin/post-new.php	0.816 s	0.813 s	-0.003 s	6.3 MiB	6.59 MiB	+ 289.94 KiB
/wp-admin/upload.php	0.618 s	0.391 s	-0.227 s	3.74 MiB	3.92 MiB	+ 187.98 KiB
/wp-admin/options-writing.php	0.306 s	0.279 s	-0.027 s	3.71 MiB	3.9 MiB	+ 192.28 KiB
/wp-admin/media-new.php	0.484 s	0.317 s	-0.167 s	3.7 MiB	3.9 MiB	+ 200.48 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.307 s	0.307 s	+0.000 s	3.71 MiB	3.92 MiB	+ 210.84 KiB
/wp-admin/post-new.php?post_type=page	0.801 s	0.670 s	-0.131 s	6.29 MiB	6.54 MiB	+ 250.73 KiB
/wp-admin/options-discussion.php	0.317 s	0.287 s	-0.030 s	3.71 MiB	3.9 MiB	+ 188.48 KiB
/wp-admin/edit-comments.php	0.310 s	0.303 s	-0.007 s	3.73 MiB	3.92 MiB	+ 188.29 KiB
/	0.264 s	0.203 s	-0.061 s	4.1 MiB	4.31 MiB	+ 211.75 KiB
Average	0.452 s	0.391 s	-0.061 s	4.23 MiB	4.44 MiB	+ 212.73 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%	16,828	5,646	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			23,748	7,944	157

PHP Code Analysis | More results »

Lines of code	16,518
Total complexity	3,284
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	951
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.

Meta Boxes

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

PHP Error Log 13 lines

[15-Dec-2025 20:56:41 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
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Html/Callbacks/CombineJsCss.php on line 81
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[15-Dec-2025 20:56:42 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163