https://www.plesk.com/kb/docs/service_plan_addon-hosting-plan-add-ons/
service_plan_addon: Hosting Plan Add-ons - Documentation from Plesk Knowledge Base
hosting add onsservice planaddon
https://ch.origin.docs.plesk.com/en-US/obsidian/cli-win/using-command-line-utilities/service_plan_addonexe-hosting-plan-addons.66540/
service_plan_addon.exe: Hosting Plan Add-ons | Plesk Obsidian documentation
The service_plan_addon utility is used for managing hosting plan add-ons through the command line. Location %plesk_...
hosting add onsservice planplesk obsidianaddonexe
https://store.elfhosted.com/
ElfHosted - Private Stremio Add-ons & Managed Media Server Hosting
add onsmanaged mediaprivatestremioserver
https://services.addons.thunderbird.net/en-Us/firefox/addon/ip-whois-flags-chrome-norto/reviews/798426/
Whois Lookup & Hosting & DNS & Site Flags Firefox :: Reviews :: Add-ons for Firefox
whois lookupadd onshostingdnssite