We are working on server issues affecting the Ensembl mirror sites. A workaround is to use the Ensembl main site via the following link – https://ensembl.org?redirect=no or a recent archive such as https://may2025.archive.ensembl.org/. You can also try the new Ensembl site at https://beta.ensembl.org and let us know about the features you would like to see there.