Update - Unfortunately, we do not expect work to begin on a solution for this problem until the week of 2023-October-9.
Sep 27, 2023 - 15:35 UTC
Investigating - We are currently investigating this issue.
Sep 26, 2023 - 02:59 UTC
APIs
Degraded Performance
Public REST API
The REST API enables flexible programmatic access to search and filter our metadata and/or match references. The Public REST API is a public, open, and free API for all anonymous users. Note that we recommend you be "polite" and self-identify as described in the "Etiquette" section of the API documentation: https://api.crossref.org
Operational
Polite REST API
The REST API enables programmatic access to search and filter our metadata and/or match references. The Polie REST API is a public, open, and free API for all self-identified users, as described in the “Etiquette” section of the API documentation: https://api.crossref.org
Operational
OAI-PMH
The OAI-PMH (version 2) service enables the distribution of metadata in XML as as documented at http://www.openarchives.org/OAI/openarchivesprotocol.html
Degraded Performance
XML API
The XML API provides legacy support for bulk DOI matching. For more information: https://0-support-crossref-org.library.alliant.edu/hc/en-us/articles/213420726-XML-API
Operational
Event Data Query API
A collaborative initiative by Crossref and DataCite, Event Data (https://0-www-eventdata-crossref-org.library.alliant.edu/) meets a growing community need by offering transparency around the way interactions with scholarly research occur online, outside of publisher platforms.
Operational
OpenURL
The OpenURL service provides an API for use by library link resolvers. For more information: https://0-support-crossref-org.library.alliant.edu/hc/en-us/articles/214880143-OpenURL
Operational
Crossmark dialog server
The service that supports the Crossmark pop-up box on members' websites. For more information on Crossmark: https://0-www-crossref-org.library.alliant.edu/get-started/crossmark/
Operational
Public content negotiation
Provides DOI content negotiation (public pool) as described at https://crosscite.org/docs.html
Operational
Polite content negotiation
Provides DOI content negotiation (polite pool) as described at https://crosscite.org/docs.html
Operational
Metadata Plus
Operational
Plus REST API
The REST API enables flexible programmatic access to search and filter our metadata and/or match references. The Plus REST API provides enhanced support and features to Metadata Plus subscribers who are using the API for production services. For more information: https://api.crossref.org
Operational
Plus OAI-PMH
The OAI-PMH (version 2) service enables the distribution of metadata in XML as documented at http://www.openarchives.org/OAI/openarchivesprotocol.html. This is the Plus version of the OAI-PMH that provides enhanced support and features for Metadata Plus subscribers.
Operational
XML Snapshots
Metadata Plus snapshots provide access to all our 100 million plus metadata records in a single file, providing an easy way to retrieve an up-to-date copy of our records. Snapshots are available for Metadata Plus service users.
The files are made available via a /snapshots route in the REST API which offers a compressed .tar file (tar.gz) containing the full extract of the metadata corpus in XML format.
Operational
JSON Snapshots
Metadata Plus snapshots provide access to all our 100 million plus metadata records in a single file, providing an easy way to retrieve an up-to-date copy of our records. Snapshots are available for Metadata Plus service users.
The files are made available via a /snapshots route in the REST API which offers a compressed .tar file (tar.gz) containing the full extract of the metadata corpus in JSON format.
Operational
Plus content negotiation
Provides DOI content negotiation (plus pool) as described at https://crosscite.org/docs.html
Operational
Sites
Operational
Crossref website
Crossref’s website - crossref.org
Operational
Crossref support
Our zendesk instance for opening and reviewing support tickets - support.crossref.org
Operational
Metadata search
Metadata search - search.crossref.org - is Crossref’s primary user interface for searching and filtering our millions of records for journal articles, books, standards, datasets and more
Operational
Participation reports
Participation Reports (https://0-www-crossref-org.library.alliant.edu/members/prep/) allow publishers a centralized dashboard to view overall metadata in the Crossref system.
Operational
Content Registration
Operational
Admin tool
The Crossref admin tool (https://0-doi-crossref-org.library.alliant.edu/), also known as the deposit queue or the submission system, where members deposit metadata, manage their accounts and more.
Operational
Test admin tool
Crossref’s system for testing deposits and integrations (http://0-test-crossref-org.library.alliant.edu/).
Operational
External dependencies
Operational
Handle servers
The system that points a DOI at the online location of the content
Operational
Similarity Check via iThenticate from Turnitin - status found at https://turnitin.statuspage.io/
System status for the Similarity Check application, iThenticate, can be found on Turnitin's status page - https://turnitin.statuspage.io/.
Operational
AWS cloudfront
Operational
Meta
Operational
deliberately-unreliable server
A Crossref test server that is *deliberately* unreliable and used for testing the uptime monitoring system.
Operational
Demo Auth
Demo component
Operational
Beta
Operational
Metadata Manager
Metadata Manager (https://0-www-crossref-org.library.alliant.edu/metadatamanager/) allows you to register your content and your references in one go - and it highlights any issues as you go along, rather than having to wait for a report.
There will be a short period of back-end maintenance on all Turnitin products on Saturday, 28 October from 0800 to 0830 UTC. There should be limited impact to users of Similarity Check via iThenticate from Turnitin. For additional details see Turnitin's status page: https://turnitin.statuspage.io/. Posted on
Sep 28, 2023 - 15:19 UTC
Completed -
The scheduled maintenance has been completed.
Sep 22, 12:01 UTC
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 22, 11:00 UTC
Scheduled -
We will be releasing an update to Crossref Metadata Search (https://0-search-crossref-org.library.alliant.edu/) during this time. We hope that users will not have any interruption to their service, but there may be disruption to service during this hour.
Sep 22, 10:45 UTC
Resolved -
This incident has been resolved.
Sep 21, 13:44 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Sep 21, 13:34 UTC
Investigating -
Crossref Metadata Search - search.crossref.org - is currently returning a 503 service unavailable status code error. We're performing maintenance at the moment and are working on a fix to that underlying issue.
Sep 21, 13:12 UTC