Cloudflare 1.1.1.1
DNS lookup
Check a DNS record or look up the hostname for an IP address with PTR.
Serhard Network Tools
What is my IP?
See your public address and how you reach the network. Diagnose DNS, routing, and subnets from one place.
Your public IP
Connection snapshotChecking your connection…
The address Cloudflare sees for this request.
- Approximate location
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- Network organization
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- Edge location
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- Protocol and TLS
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- IP time zone
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- Edge-reported round trip
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DNS and routing
Resolve a domain or see which network announces an address.
Resolver
RIPEstat
IP and ASN lookup
Find the announced prefix and origin ASNs for an address, or look up an ASN holder.
IP address and subnet tools
Inspect an address and calculate ranges in your browser.
IPv4 and IPv6
Address inspector
Normalize an address, check common special ranges, and get its reverse DNS name.
IPv4 and IPv6
CIDR calculator
Find network boundaries, address count, and whether an IP falls inside the subnet.
Connection checks
Collect the details that help troubleshoot a connection.
Browser to Serhard
Internet speed test
Measure download, upload, latency, and jitter to Serhard. Each run transfers up to 9 MiB of test data.
- Download
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- Upload
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- Latency
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- Jitter
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How results are measured
Download and upload show the median of three short transfers. Latency is the median of five HTTP requests. Jitter is the average change between consecutive requests. Your device, browser, and the path to this edge can all affect the results.
Local device
Browser details
See the time zone, language, viewport and other settings your browser reports.
Show browser details
What the results mean
Why might the IP or location differ from what I expect?
A VPN, proxy, corporate gateway or mobile carrier can change the public address that Cloudflare sees. IP location is approximate and can describe the exit network. This page reports the IP version used for this connection.
Where do lookups run?
Address inspection, subnet math and browser details run locally. DNS queries go to Cloudflare’s public resolver and routing lookups go to RIPEstat when you request them. The app does not save a lookup history.
What does a DNSSEC result mean?
The resolver’s authenticated-data flag indicates whether the returned DNS data was authenticated. An unset flag alone does not diagnose a domain misconfiguration.