Is nii.ac.jp down right now?
No one has reported a problem in the last hour.
About nii.ac.jp
It ranks #7,350 among the most visited sites in the world on the Tranco list.
We have recorded no outage for nii.ac.jp in the last 90 days; it answered 84.96% of our checks.
Reports, last 24 hours
0 reports · normally about 3 per hour| Problem reported | No reports in the last 24 hours. |
Get notified
One email when nii.ac.jp goes down and one when it recovers. No account needed; unsubscribe from any email.
What we checked
23:24:42 UTC| Layer | Result | Outcome |
|---|---|---|
| DNS name lookup | nii.ac.jp resolves to 153.120.132.42 | pass |
| TLS certificate | Certificate from SECOM Trust Systems Co., Ltd., expires 2026-12-03 | pass |
| Content | Page title: “国立情報学研究所 / National Institute of Informatics” · changed in the last 48 h | – |
| Reputation | Run the trust check | – |
Outage history, 90 days
No incidents recorded in the last 90 days.
Common questions
Is nii.ac.jp down for everyone or just me?
Compare the test from your browser above with our server checks. If our servers reach nii.ac.jp and your browser cannot, the problem is on your connection, DNS or network. If both fail, the site is down.
How do you know if nii.ac.jp is down?
We request the homepage from 7 locations, check DNS, the TLS certificate and the HTTP response, and compare the page content with what we saw before. We also read the service's official status feed where one exists and count visitor reports against the usual rate for the hour.
What can I do while it is down?
Subscribe to the alert on this page and we will email you when it recovers. Clearing your DNS cache or switching networks only helps when our servers can reach the site and your browser cannot.