I have developed a cron script for the backup of website. Of course this script needs crons to run. it is possible to do it from the linux cron or gif image in pages, but some customers who do not have crons on their website are interested to use external Cronjob services. and i can add your services in the administration of my cron script. Do you have an affiliation system?
Our affiliate program is at https://www.easycron.com/affiliates/program.