Maintenance information

J-STAGE occasionally undergoes system maintenance. During maintenance periods, J-STAGE enters maintenance mode. Many features of the website are still available in maintenance mode, such as searching and browsing articles and reading static J-STAGE webpages. However, some functions are not available (see below for more details).
You can keep up to date on current and scheduled maintenance by visiting this page and by following J-STAGE on X (external website)

March , 2025

March 24, 2025
Due to a scheduled maintenance, J-STAGE will enter the maintenance mode from 01:00 to 05:00 on March 27 (UTC)*. During maintenance mode, some functions are not available.
*Normal service operations will be resumed as soon as the maintenance work is completed.

System maintenance schedule

Last Update : March 24, 2025

J-STAGE will undergo scheduled maintenance at the following times. We apologize for any inconvenience.

2024

Date	Time		Maintenance mode	Status
April 27, 2024	10:00 - 15:00(JST)	01:00 - 06:00(UTC)	Yes	finished
May 23, 2024	13:00 - 18:00(JST)	04:00 - 09:00(UTC)	No	finished
June 29, 2024	10:00 - 16:00(JST)	01:00 - 07:00(UTC)	Yes	finished
July 25, 2024	13:00 - 18:00(JST)	04:00 - 09:00(UTC)	No	finished
August 31, 2024	10:00 - 19:00(JST)	01:00 - 10:00(UTC)	Yes	finished
September 26, 2024	09:00 - 19:30(JST)	00:00 - 10:30(UTC)	No	finished
October 26, 2024	09:00 - 19:00(JST)	00:00 - 10:00(UTC)	Yes	finished
November 28, 2024	13:00 - 17:00(JST)	04:00 - 08:00(UTC)	No	finished
December 21, 2024	09:00 - 17:00(JST)	00:00 - 08:00(UTC)	Yes	finished

2025

January 24, 2025	08:00 - 16:00(JST)	23:00 - 07:00(UTC)	Yes	finished
January 30, 2025	13:00 - 19:00(JST)	04:00 - 10:00(UTC)	Yes	finished
February 21, 2025	08:00 - 16:00(JST)	23:00 - 07:00(UTC)	Service outage	finished
February 27, 2025	10:00 - 18:00(JST)	01:00 - 09:00(UTC)	No	finished
March 21, 2025	March 22 08:00 - March 23 18:00(JST)	March 21 23:00 - March 23 09:00(UTC)	Service outage	finished
March 27, 2025	10:00 - 14:00(JST)	01:00 - 05:00(UTC)	Yes

Please note the schedule is subject to change.

Functions that cannot be used during maintenance mode

When J-STAGE enters maintenance mode, a message is displayed in the header of each page and "Maintenance mode" is displayed below the J-STAGE logo. The following functions are not available:

1.My J-STAGE
2.Purchasing articles
3.Viewing articles with authentication
4.Accessing COUNTER reports

1. My J-STAGE

All functions of My J-STAGE are unavailable in maintenance mode.

a) Signing in to My J-STAGE

You will not be able to sign in to My J-STAGE during maintenance periods. If you are using J-STAGE while signed in to My J-STAGE, you will be automatically signed out when maintenance starts.

b) Managing favorites and alerts

You will not be able to add or edit new favorites and alerts during maintenance periods.

c) Applying your favorite search

In maintenance mode, "Apply your favorite search" will not be displayed on the advanced search page.

2. Purchasing articles

Pay-per-view (PPV) articles cannot be purchased during maintenance periods. However, you can browse PPV articles that you have already purchased.

3. Viewing articles with authentication

When J-STAGE is in maintenance mode, you cannot view articles that require authentication by subscription number.

During maintenance periods, the following screen will be displayed if you try to access an authenticated article directly by specifying the URL.

4. Accessing COUNTER reports

COUNTER reports are not available in maintenance mode. The following screen will be displayed.