Reiji Sato

Control the output log file regardless of WP_DEBUG mode. 
Specify output directory and file name, download and delete files.
And specify the date format as the file name, you can split the log every day and every month.

WP Output Log File

License: GPLv2 or later License URI: http://www.gnu.org/licenses/gpl-2.0.html This plugin can manage the output log file, specify output directory an …

Alex King

Crowd Favorite

If you’ve decided to move things around on your site, you might overlook a few redirects and end up with some broken URLs. This will help you catch those so you can take care of them.

404 Notifier

Log 404 (file not found) errors on your site and get them delivered to you via e-mail or RSS.

WP Output Log File vs 404 Notifier