Your External IP Address
Detecting…
ISP / Carrier
—
ASN
—
City
—
Region
—
Country
—
Timezone
—
Coordinates
—
IP Version
—
Postal Code
—
Latency to Server
—
WAN Port Scanner
Tests run from our server — results reflect exactly what the internet sees at your IP
Filter:
Select ports above and click Scan
0 open
0 closed
LAN Connectivity Tests
Runs entirely in your browser — no data leaves your device
Reachability Stats
—
Min ms
—
Avg ms
—
Max ms
—
Jitter ms
—
% Loss
# Enter a LAN IP and click Run LAN Tests
LAN Port Probe
⚠️ Browser-based probes use HTTP fetch — not raw ICMP. For real ping:
ping [IP]SSL/TLS Certificate Inspector
Expiry, issuer, SANs, and Certificate Transparency logs via crt.sh
Enter a domain and click Check Certificate
DNS Lookup
Query any record type via Cloudflare (1.1.1.1) or Google (8.8.8.8) DoH
Enter a domain and choose record type
Traceroute
Network path visualization — uses traceroute.php server-side; realistic simulation as fallback
Enter a host to begin
WHOIS / RDAP Lookup
Domain registration via RDAP protocol
Enter a domain name
Speed Test
Built-in Cloudflare test · or launch Ookla / Fast.com in a new tab
ⓘ Speed test sites block iframe embedding — use the links above to open them. The built-in test below runs directly in this page.
Built-in Test
—
↓ Mbps
—
↑ Mbps
—
Ping ms
—
Jitter ms
HTTP Header Inspector
View response headers + security score for any URL
Enter a URL to inspect headers
IP Blacklist Check
Check against 20 spam/abuse DNS blocklists
Detecting your IP…
Subnet Calculator
CIDR subnet math — network, broadcast, host range
Enter CIDR notation
Browser & Device Info
What every website you visit can see about your browser
Loading…