Sumo is down? Current uptime and performance status in September 2026
https://www.sumo.or.jpChecked an hour ago
Sumo has uptime of 100 % with 0 incidents in the available monitoring period. The performance score is 40 along with speed index of 4.77 seconds. Sumo has SEO score of 82 and PWA score of 77. Sumo certificate expires soon and will expire in 6 days. Realtime Performance and uptime status contains uptime monitoring metrics, performance monitoring, chrome ux metrics, global uptime and SSL certificate details.
Health Metrics
Availability
100%
Response time
0.64s
Downtime
-
Performance Metrics
Speed index
4.77
s
Performance
40
/100
SEO
82
/100
PWA
77
/100
Accessibility
82
/100
UX Metrics
AvailableFirst Contentful Paint (FCP)
0.68 s94.78%
3.32%
1.9%
Good (<1s)AveragePoor (>=3s)
Largest Contentful Paint (LCP)
0.80 s95.81%
2.68%
1.51%
Good (<2.5s)AveragePoor (>=4s)
Cumulative Layout Shift (CLS)
091.82%
3.14%
5.04%
Good (<0.10)AveragePoor (>=0.25)
Locations
SSL Certificate Details
Expires soon- Expiry
- 6 days
- Valid till
- Sat Sep 19 2026
- Domains
- DNS:*.sumo.or.jp, DNS:sumo.or.jp
- Issued by
- GlobalSign nv-sa, BE
Performance monitoring simplified
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