Report - Header Footer Code Manager 1.1.27

Does Header Footer Code Manager work with WordPress 6.0.2 and PHP 7.4.8? A smoke test was performed on 2022-08-30 20:58:27 UTC.

Summary

Errors

	No PHP errors, warnings or notices
2	JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 28.04 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	6.0.2
PHP version	7.4.8
MySQL version	8.0.21
PHP memory limit	256M

Plugin Info

Last updated	2025-08-27T14:07:00+00:00
Active installs	600,000+
WordPress.org page	https://wordpress.org/plugins/header-footer-code-manager/
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=header-footer-code-manager%2F99robots-header-footer-code-manager.php&plugin_status=all&paged=1&s&_wpnonce=18bae2956e
Aspect	after-activation
HTTP status	200
Load time	0.300 s
Memory usage	3.72 MiB
JS errors	None
Resource errors	None

HFCM

URL	/wp-admin/admin.php?page=hfcm-list
Aspect	menu-item
HTTP status	200
Load time	0.313 s
Memory usage	3.69 MiB
JS errors	None
Resource errors	None

HFCM → Add New

URL	/wp-admin/admin.php?page=hfcm-create
Aspect	menu-item
HTTP status	200
Load time	1.156 s
Memory usage	3.91 MiB
JS errors	[ { "message": "TypeError: Cannot read properties of null (reading 'addEventListener')\n at HTMLDocument.<anonymous> (/wp-content/plugins/header-footer-code-manager/js/nnr-hfcm-showboxes.js?ver=6.0.2:168:55)\n at e (/wp-admin/load-scripts.php?c=0&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-codemirror,underscore&ver=6.0.2:2:30038)\n at t (/wp-admin/load-scripts.php?c=0&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-codemirror,underscore&ver=6.0.2:2:30340)", "trace": null, "code": null } ]
Resource errors	None

HFCM → Tools

URL	/wp-admin/admin.php?page=hfcm-tools
Aspect	menu-item
HTTP status	200
Load time	0.161 s
Memory usage	3.73 MiB
JS errors	`[ { "message": "TypeError: $(...).selectize is not a function\n at HTMLDocument.<anonymous> (/wp-content/plugins/header-footer-code-manager/js/nnr-hfcm-showboxes.js?ver=6.0.2:148:106)\n at e (/wp-admin/load-scripts.php?c=0&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils&ver=6.0.2:2:30038)\n at t (/wp-admin/load-scripts.php?c=0&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils&ver=6.0.2:2:30340)", "trace": null, "code": null } ]`
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.200 s
Memory usage	3.57 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.307 s	0.257 s	-0.050 s	3.72 MiB	3.75 MiB	+ 22.89 KiB
/wp-admin/edit.php	0.176 s	0.183 s	+0.007 s	3.76 MiB	3.78 MiB	+ 22.16 KiB
/wp-admin/post-new.php	0.740 s	0.894 s	+0.154 s	5.55 MiB	5.58 MiB	+ 31.23 KiB
/wp-admin/upload.php	0.563 s	0.362 s	-0.201 s	3.69 MiB	3.71 MiB	+ 22.34 KiB
/wp-admin/options-writing.php	0.153 s	0.142 s	-0.011 s	3.62 MiB	3.68 MiB	+ 66.27 KiB
/wp-admin/media-new.php	0.398 s	0.200 s	-0.198 s	3.66 MiB	3.69 MiB	+ 22.52 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.211 s	0.177 s	-0.034 s	3.69 MiB	3.71 MiB	+ 23.42 KiB
/wp-admin/post-new.php?post_type=page	0.573 s	0.689 s	+0.116 s	5.54 MiB	5.57 MiB	+ 22.82 KiB
/wp-admin/options-discussion.php	0.210 s	0.314 s	+0.104 s	3.6 MiB	3.68 MiB	+ 86.84 KiB
/wp-admin/edit-comments.php	0.201 s	0.226 s	+0.025 s	3.7 MiB	3.72 MiB	+ 21.78 KiB
/	0.277 s	0.226 s	-0.051 s	3.6 MiB	3.57 MiB	- 33.8 KiB
Average	0.346 s	0.334 s	-0.013 s	4.01 MiB	4.04 MiB	+ 28.04 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

Language		%	Lines of code	Comment lines	Files
	PHP	64.4%	1,999	267	5
	CSS	19.6%	609	17	3
	PO File	8.5%	265	264	1
	JavaScript	7.4%	230	21	3
	SVG	0.0%	1	0	1
Total			3,104	569	13

PHP Code Analysis | More results »

Lines of code	1,470
Total complexity	265
Median class complexity	132.5
Median method complexity	2.0
Most complex class	NNR_HFCM
Most complex function	NNR_HFCM::hfcm_add_snippets()

Classes	2
Methods	49
Functions	0

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.

Database Tables 1

wp_hfcm_scripts

Options `wp_options` 2

hfcm_activation_date
hfcm_db_version

PHP Error Log

The log file is empty.

Header Footer Code Manager 1.1.27