Si is down? Current uptime and performance status in sep 2025

Health Metrics in last 24 hours

100 %

Availability

0.36 s

Response Time

0 s

Down time

Performance Metrics in last 24 hours

1.53 s

Speed Index

84 / 100

Perf. Score

100 / 100

SEO Score

96 / 100

PWA Score

96 / 100

Accessibility

UX Metrics

Information not available

SSL Certificate Details checked 4 hours ago

Validity

Valid

Expiry

55 days

Valid till

Sat Oct 25 2025

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 84 along with speed index of 1.53 seconds. Si has SEO score of 100 and PWA score of 96. Si certificate is good and will expire in 55 days. Realtime Performance and uptime status contains uptime monitoring metrics, performance monitoring, chrome ux metrics, global uptime and SSL certificate details.