The Ensembl archive sites are currently under heavy traffic loads causing access failures or very slow performance. We apologise for the disruption to our service and our teams are exploring solutions.
As a workaround for the Ensembl 116 Archive from June 2026 – please use the Ensembl 115 (Sep 2025) archive at https://sep2025.archive.ensembl.org/index.html
Category: Service status
Announcements about website downtime and other service issues
Ensembl BioMart Sep 2026 status report
Ensembl 116 and Ensembl Genomes 63, which were released in June 2026, are the final versions of the legacy Ensembl site and services.
We are currently in a transition phase to our new site, now available at ensembl.org, while our previous sites remain available via archives. Ensembl BioMart is one of the features that is not moving over to the new Ensembl as there is a new data mining tool in development for new site data.
Continue readingEnsembl is moving to our new platform this week
Ensembl is moving to our new platform for genome data and annotation this week. We will begin with the Ensembl Genomes sites and end with the Ensembl 116 site at www.ensembl.org.
The default URL for our new site will be www.ensembl.org. This site offers new scientific opportunities, as genomes and genesets are now available for a diverse array of species from across the tree of life.
Please explore the site and the range of data available, and contact us with your needs, especially regarding new data and working with pangenome data.
There are many new features coming to the new Ensembl, along with the features you have come to love in our legacy sites. If there is a feature you need which is not yet available on the new site, the legacy sites remain available via our archives.
We have a new integrated release on our new site – 2026-07 – which integrates the latest genesets from the Ensembl 116 and Ensembl Genomes 63 releases. Read more.
We also delivered webinars on transition topics, including Educating with Ensembl, the new site, and programmatic access to genome data. Recordings are available.
Thank you for your patience over this transition period, and for joining us as we aim to share more genome data than ever before. We look forward to the insights and discoveries to come.
Apps renamed on the new Ensembl site
We have renamed the Species selector and Entity viewer apps on the new Ensembl site!
The Entity viewer has been renamed to Feature Explorer:
https://beta.ensembl.org/feature-explorer
The Species selector has been renamed to Genome selector:
https://beta.ensembl.org/genome-selector
To preserve existing links you have saved, the previous URLs for these apps will resolve to the new name based addresses above.
For any questions or issue, please contact the Ensembl Helpdesk.
Downtime of new Ensembl – beta.ensembl.org (RESOLVED)
This issue is now resolved and the beta.ensembl.org site is back online.
Due to a server issue our beta.ensembl.org site is currently unable to display genome data and search queries will fail. GraphQL data cannot be served right now too. We’re working to fix this as quickly as possible. Thank you for your patience.
Ensembl MySQL services will be upgraded to MySQL 8 soon
Users of the publicly accessible Ensembl MySQL servers should note that we will soon be upgrading these services from MySQL 5.6 to MySQL 8.
Continue readingService notice – server issues affecting the Ensembl mirror sites
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.
Downtime of Ensembl Tools
Please note that due to planned maintenance, Ensembl Tools will be unavailable from Tuesday, September 9 2025, at 08:30 AM BST until Wednesday, September 10 2025, at 08:30 AM BST.
Jobs submitted during the maintenance window will be queued and processed once maintenance is complete.
We apologise for the inconvenience. Services will be resumed as soon as the work has been completed. If you have any questions about the planned maintenance work, please contact us via the Ensembl Helpdesk.
Downtime of Ensembl Genomes BLAST
Due to scheduled maintenance work, Ensembl Genomes BLAST will be temporarily unavailable on Tuesday 7th May 2024.
Continue readingDowntime of Ensembl search
We are experiencing issues with the Ensembl search system due to unforeseen errors. The search function is currently unavailable and this may affect other functions such as the loading of variants on genomic sequences. To search for entries in Ensembl, you can do one of the following:
- Use the EMBL-EBI website: go to https://www.ebi.ac.uk/ebisearch and enter your search terms into the text box. E.g. if you want to search for human BRCA2 in Ensembl, enter
Ensembl human BRCA2into the search text box. - Use Google: to search for entries in Ensembl via Google, go to www.google.com and enter
site:https://www.ensembl.org [search terms]. E.g. if you want to search for human BRCA2, entersite:https://www.ensembl.org human BRCA2into Google.
We are working to fix this issue as quickly as possible, although a timeline is still unclear for the work to be completed. Services will be resumed as soon as the issue has been resolved. If you have any questions, please contact us on the Ensembl Helpdesk.