Some users of the site (geoapp.magnumpiering.com) are seeing ERR_CERT_COMMON_NAME_INVALID. There is a support article (https://developers.cloudflare.com/ssl/origin-configuration/ssl-modes/full-strict/) that suggests that switching ssl modes to full might help but there’s not a setting that I can find in Cloudflare Pages to do that. Additionally, https://www.geocerts.com/ssl-checker says that there might be an issue with the certificate chain.
Additionally, the support page (https://dash.cloudflare.com/7c89c3d9f98fe5dbf02ff1150a61f18a/support) has a domain check option but won’t let me enter a domain to check.