Stackoverflow is down? Current uptime and performance status in jan 2026

Health Metrics in last 24 hours

100 %

Availability

0.15 s

Response Time

0 s

Down time

Performance Metrics in last 24 hours

2.75 s

Speed Index

34 / 100

Perf. Score

75 / 100

SEO Score

96 / 100

PWA Score

92 / 100

Accessibility

UX Metrics

Information not available

SSL Certificate Details checked 20 hours ago

Validity

Valid

Expiry

35 days

Valid till

Sat Feb 21 2026

Domains

DNS:www.stackoverflow.com

Issued for

, , ,

Issued by

Let's Encrypt, US

Stackoverflow has uptime of 100 % with 0 incidents in the last 24 hours. The performance score is 34 along with speed index of 2.75 seconds. Stackoverflow has SEO score of 75 and PWA score of 96. Stackoverflow 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.