Si is down? Current uptime and performance status in may 2026

Health Metrics in last 24 hours

100 %

Availability

0.36 s

Response Time

0 s

Down time

Performance Metrics in last 24 hours

2.71 s

Speed Index

49 / 100

Perf. Score

92 / 100

SEO Score

96 / 100

PWA Score

100 / 100

Accessibility

UX Metrics

Information not available

SSL Certificate Details checked 21 hours ago

Validity

Valid

Expiry

35 days

Valid till

Thu Jun 18 2026

Domains

DNS:www.si.edu

Issued for

Smithsonian Institution, Washington, District of Columbia, US

Issued by

Let's Encrypt, US

Si has uptime of 100 % with 0 incidents in the last 24 hours. The performance score is 49 along with speed index of 2.71 seconds. Si has SEO score of 92 and PWA score of 96. Si certificate is good and will expire in 35 days. Realtime Performance and uptime status contains uptime monitoring metrics, performance monitoring, chrome ux metrics, global uptime and SSL certificate details.