120 tools
Network diagnostics
Test latency, speed and site access, look up DNS records and CDN nodes, and split subnets.
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9 tools
- Global latency testTest latency to data centres and major CDNs around the world
- Website connectivity checkCheck whether Google, YouTube, ChatGPT, Netflix and more can be reached
- Speed testMeasure download and upload speed, latency and jitter
- DNS record lookupLook up A, AAAA, MX, TXT, NS, CNAME and other records
- DNS speed comparisonCompare how fast public DNS services resolve names
- DNSSEC checkCheck whether a domain uses DNSSEC and its signature chain is intact
- CDN node lookupSee which nodes and CDN visitors from different regions are sent to
- Cloudflare preferred domainsMeasure latency and entry data centres of popular Cloudflare domains
- Subnet calculatorWork out the network and host range from an IP and mask