Package check result: NOTE Check: CRAN incoming feasibility, Result: NOTE Maintainer: ‘James Foadi ’ Found the following (possibly) invalid URLs: URL: https://xds.mr.mpg.de/ From: man/readXDS_ASCII.Rd Status: Error Message: SSL peer certificate or SSH remote key was not OK [xds.mr.mpg.de]: server verification failed: certificate signer not trusted. (CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none) No changes to worse in reverse depends.