SSL certificates require a domein name, which the routers technically have (DDNS name), but they would also require that the router can proof it have access to said name. This would either require HTTP to the router (would not work on CGNAT/normal NAT etc etc) or the router to be any to set TXT records on gl-inet’s DDNS service with possible security issues being possible.
Having any other name, would require the router to be configured for that. Self-signed it pretty simple and if you want to really setup something else you can probably do that! Luci has “luci-app-acme” for that.
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