DNS Propagation
Check DNS propagation with a resolver locality matrix, TTLs and distinct answers.
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Network diagnostics
Check IP, DNS and domain signals in seconds.
Start with a public domain, hostname or IP and move straight into practical checks for DNS, propagation, RDAP, SSL, ports and reachability.
Network checks
Run a network check
Open the exact tool you need before reading the guide.
What is my IP
Read the public address seen by the service and explain what it can and cannot prove.
Open toolDNS Lookup
Inspect common public DNS records with clear TTL and resolver context.
Open toolRDAP Domain Lookup
Summarize public domain registration facts without exposing private contact data.
Open toolSSL Certificate Checker
Check certificate identity, expiry and chain context for public HTTPS endpoints.
Open toolPort Checker
Test a small allowlisted set of public ports with anti-abuse boundaries.
Open toolPing and Traceroute
Run limited reachability diagnostics from controlled infrastructure.
Open toolTool finder
Browse diagnostics
Filter the network toolkit by category or keyword.
DNS records
DNS Propagation
Check DNS propagation with a resolver locality matrix, TTLs and distinct answers.
- Checks
- A, AAAA, CNAME, MX, NS, PTR, SOA, SRV, TXT and CAA regional checks
- Example
- example.com
Connection identity
What is my IP
Read the public address seen by the service and explain what it can and cannot prove.
- Checks
- Public IPv4 or IPv6, network hints and privacy notes
- Example
- Current browser connection
DNS records
DNS Lookup
Inspect common public DNS records with clear TTL and resolver context.
- Checks
- A, AAAA, CNAME, MX, TXT, NS, SOA and CAA records
- Example
- example.com
Domain registration
RDAP Domain Lookup
Summarize public domain registration facts without exposing private contact data.
- Checks
- Registrar, status, important dates and nameservers
- Example
- example.com
TLS and certificates
SSL Certificate Checker
Check certificate identity, expiry and chain context for public HTTPS endpoints.
- Checks
- Issuer, subject, SANs, validity dates and chain notes
- Example
- example.com
Reachability probes
Port Checker
Test a small allowlisted set of public ports with anti-abuse boundaries.
- Checks
- Limited public TCP reachability checks
- Example
- example.com:443
Reachability probes
Ping and Traceroute
Run limited reachability diagnostics from controlled infrastructure.
- Checks
- Bounded TCP 443 reachability with ICMP and traceroute limits disclosed
- Example
- example.com
Diagnostic principles
The free answer is complete
The basic lookup should answer the troubleshooting need before signup, account features or saved history.
Public targets only
Hostnames are validated and private, loopback, link-local and metadata ranges are blocked before probes run.
Limits are explicit
Each result names resolver context, cache, timeouts, registry limits and runtime boundaries.
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