Technoscore Kissmetrics Tracking is best plugin for WordPress to add Kissmetrics Tracking code to header part of Selected/All webpages.
More details are as follows:-
It adds Kissmetrics Tracking code to particular pages or all pages.
安装:
Use WordPress' built-in installer
Download the ZIP file from WordPress website
Extract the technoscore-kissmetrics-tracking directory to your computer
Upload the technoscore-kissmetrics-tracking directory to the /wp-content/plugins/ directory