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Health Metrics in last 24 hours
- %
Availability
- s
Response Time
0 s
Down time
Performance Metrics in last 24 hours
5.26 s
Speed Index
53 / 100
Perf. Score
85 / 100
SEO Score
74 / 100
PWA Score
46 / 100
Accessibility
UX Metrics
Locations
SSL Certificate Details checked 9 hours ago
Validity
ValidExpiry
187 daysValid till
Thu Nov 27 2025Domains
DNS:*.csdn.net, DNS:csdn.netIssued for
北京创新乐知网络技术有限公司, 北京市, 北京市, CNIssued by
DigiCert Inc, USCsdn is down? Current uptime and performance status in may 2025
Last updated: May 24, 2025
Csdn has uptime of 100 % with 0 incidents in the last 24 hours. The performance score is 53 along with speed index of 5.26 seconds. Csdn has SEO score of 85 and PWA score of 74. Csdn certificate is good and will expire in 187 days. Realtime Performance and uptime status contains uptime monitoring metrics, performance monitoring, chrome ux metrics, global uptime and SSL certificate details.
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