FastCache by host.it 1.5.2

Does FastCache by host.it work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
37PHP warnings
1PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 212.58 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 version6.9
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 300+
WordPress.org page https://wordpress.org/plugins/fastcache-by-host-it/
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Pages 5

Plugins ‹ Test site — WordPress

Page screenshot: 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=0ad4469c15
Aspect after-activation
HTTP status 200
Load time 0.355 s
Memory usage 3.93 MiB
JS errors None
Resource errors None

Settings → FastCache Settings

Page screenshot: Settings → FastCache Settings
URL /wp-admin/options-general.php?page=fastcache
Aspect menu-item
HTTP status 200
Load time 0.692 s
Memory usage 4.98 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.234 s
Memory usage 4.31 MiB
JS errors None
Resource errors None

Add Page ‹ Test site — WordPress

Page screenshot: Add Page ‹ Test site — WordPress
URL /wp-admin/post-new.php?post_type=page
Aspect new-meta-boxes
HTTP status 200
Load time 0.852 s
Memory usage 6.54 MiB
JS errors None
Resource errors None

Add Post ‹ Test site — WordPress

Page screenshot: Add Post ‹ Test site — WordPress
URL /wp-admin/post-new.php
Aspect new-meta-boxes
HTTP status 200
Load time 0.620 s
Memory usage 6.58 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.396 s0.327 s-0.069 s3.77 MiB3.98 MiB+ 212.9 KiB
/wp-admin/edit.php0.338 s0.361 s+0.023 s3.78 MiB3.98 MiB+ 206.08 KiB
/wp-admin/post-new.php0.818 s0.850 s+0.032 s6.3 MiB6.59 MiB+ 289.79 KiB
/wp-admin/upload.php0.429 s0.382 s-0.047 s3.74 MiB3.92 MiB+ 187.84 KiB
/wp-admin/options-writing.php0.450 s0.299 s-0.151 s3.71 MiB3.9 MiB+ 192.14 KiB
/wp-admin/media-new.php0.479 s0.320 s-0.159 s3.7 MiB3.9 MiB+ 200.34 KiB
/wp-admin/edit-tags.php?taxonomy=category0.312 s0.467 s+0.155 s3.71 MiB3.92 MiB+ 210.7 KiB
/wp-admin/post-new.php?post_type=page0.663 s0.659 s-0.004 s6.29 MiB6.54 MiB+ 250.58 KiB
/wp-admin/options-discussion.php0.320 s0.374 s+0.054 s3.71 MiB3.9 MiB+ 188.32 KiB
/wp-admin/edit-comments.php0.349 s0.306 s-0.043 s3.73 MiB3.92 MiB+ 188.14 KiB
/0.346 s0.230 s-0.116 s4.1 MiB4.31 MiB+ 211.6 KiB
Average 0.445 s0.416 s-0.030 s4.23 MiB4.44 MiB+ 212.58 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
PHP70.9%16,8265,632128
CSS11.8%2,7973727
PO File9.0%2,1431,5871
JavaScript8.2%1,95933917
HTML0.1%2003
SVG0.0%101
Total 23,746 7,930 157

PHP Code Analysis | More results »

Lines of code 16,516
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 38 lines

[12-Dec-2025 13:12:01 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
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Html/Callbacks/CombineJsCss.php on line 81
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:02 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Html/Callbacks/CombineJsCss.php on line 81
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:03 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Combiner.php on line 163
[12-Dec-2025 13:12:12 UTC] PHP Warning:  Undefined variable $isBot in /wp-content/plugins/fastcache-by-host-it/src/Core/Html/Callbacks/CombineJsCss.php on line 81
See also: All tests for this plugin, How to Hide FastCache by host.it Admin Menus and More