# Network debugging tools

{% embed url="<https://resolve.rs/tools.html>" %}
This site maintains a long list of tools to debug IP, DNS. Certificates and so on
{% endembed %}

### Domains <a href="#domains" id="domains"></a>

* [Top-level domains from ICANN](https://resolve.rs/domains/tlds.html)
* [Top-level domains from PublicSuffixList](https://resolve.rs/domains/psl-tlds.html)
* [ICANN vs PublicSuffixList Top-level domains](https://resolve.rs/domains/icann-vs-psl.html)
* [Usable top-level domains](https://resolve.rs/domains/usable-tlds.html)
* [Nice top-level domains](https://resolve.rs/domains/nice-tlds.html)
* [Calculate the public suffix for a hostname](https://resolve.rs/domains/publicsuffix.html)
* [Convert to/from punycode](https://resolve.rs/domains/punycode.html)
* [Domain Name Finder](https://resolve.rs/domains/finder.html)

### DNS <a href="#dns" id="dns"></a>

* [DNS Lookup](https://resolve.rs/dns/lookup.html)
* [MX Check](https://resolve.rs/dns/mxcheck.html)
* [Open Resolvers](https://resolve.rs/resolvers/index.html)
* [Reverse DNS Lookup](https://resolve.rs/dns/reverse-lookup.html)
* [Which DNS server am I using?](https://resolve.rs/#whichdns)

### HTTP <a href="#http" id="http"></a>

* [HTTPS Certificate Check](https://resolve.rs/http/cert-check.html)
* Headers: [Mine (request)](https://resolve.rs/http/myheaders.html), [Server (response)](https://resolve.rs/http/headers.html)
* [Content-Type header values](https://resolve.rs/http/content-type.html)
* [Redirection check](https://resolve.rs/http/redirect-check.html)
* [URL encode/decode](https://resolve.rs/http/urlencode.html)
* [URL parser](https://resolve.rs/http/urlparse.html)
* [User Agent](https://resolve.rs/http/useragent.html)

### TCP/IP <a href="#ip" id="ip"></a>

* [ASN Lookup](https://resolve.rs/ip/asn-lookup.html)
* [IP Geolocation](https://resolve.rs/ip/geolocation.html)
* [TCP Ports](https://resolve.rs/ip/tcp-ports.html)
* [TLS Certificate Check](https://resolve.rs/ip/tls-cert-check.html) (aka SSL)
* [What's my IP?](https://resolve.rs/ip/whatsmyip.html)