DNS & Network Check
Detect your IP, DNS resolvers, and network configuration
Your IP Address
detecting...
IPv4
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Location
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ISP / ASN
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Timezone
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Cloudflare PoP
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HTTP Protocol
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TLS Version
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DNS Resolver
detecting...Checking your DNS configuration...
DNS Security
pending...Evaluating DNS security features...
DNS Lookup
Recommendations
Speed Test
Measure your connection speed via Cloudflare's global edge network
Test Server
Automatic — nearest edge
Download
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Mbps
Upload
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Mbps
Latency
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ms
Jitter
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ms
Bufferbloat
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ms
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Waiting to start
Click the button below to begin
Speed Over Time
Download
Upload
History
No previous tests recorded
Recommendations
Ad Block Tester
Test the effectiveness of your ad blocker across multiple categories
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/ 100
Detected Filter Lists
Identifying which filter lists your ad blocker uses...
Recommendations
Security Headers
Analyze HTTP security headers of any website
Check URL
Security Grade
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About Security Headers
Security headers protect against common web attacks like XSS, clickjacking, and MIME sniffing. A higher score means better protection for visitors.
Header Analysis
Browser Fingerprint
See what your browser reveals about you. No data leaves your device.