My IP & adapters
External IPv4/IPv6 with provider, reverse DNS and country, plus all network adapters with gateway, DNS, DHCP and MAC vendor.
Basic · free
Tools
All 30 tools
Grouped like in the program's sidebar. Basic marks tools that stay free after the trial.
Network
Ping
Reachability and response time for IPv4 and IPv6, single or continuous, with statistics and history graph.
Basic · free
Traceroute
The path packets take to the target: every router with times, reverse name and provider (AS).
Full version
Port check
Open TCP ports of your own hosts: single, ranges or common services, in parallel and with banner.
Full version
LAN scan
All devices on your own network with name, MAC address and vendor from the IEEE list.
Full version
Wake-on-LAN
Wake devices, save devices, verify success by ping.
Full version
Subnet calculator
Network, broadcast, hosts and mask for IPv4 and IPv6, split networks into subnets.
Basic · free
Active connections
Which program is talking to whom: TCP and UDP with process name and state.
Full version
DNS & Domain
IP/host lookup
All addresses of a name, reverse DNS, provider and address range at a glance.
Basic · free
DNS records
All record types (A, AAAA, MX, NS, TXT, CNAME, SOA, SRV, CAA, …) with TTL, selectable resolver, DoH.
Basic · free
DNS propagation
Has the change arrived everywhere? Comparison of 16 public resolvers worldwide.
Full version
WHOIS
Registrar, expiry date, name servers and status – RDAP structured, WHOIS as text.
Basic · free
Reverse DNS
Which name belongs to an IP – single or for a whole network, with cross-check.
Basic · free
Web
HTTP headers
Response headers and the complete redirect chain of a URL with status and duration.
Basic · free
Security headers
HSTS, CSP, X-Frame-Options and friends with grade A+ to F and concrete advice.
Full version
SSL/TLS check
Certificate chain, expiry date, host name, protocol versions and cipher; PEM decoder.
Basic · free
Watchlist
Keep an eye on your domains: SSL expiry, domain expiry and availability, warning on the home page.
Full version
HTTP request
Send your own request: method, headers, body – and read the response (JSON formatted).
Full version
E-mail check
MX, SPF, DKIM and DMARC of a domain – checked, graded and explained in plain words.
Full version
Blacklist check
Is the IP on a spam blocklist? Check against 24 DNSBLs with delisting link.
Full version
SMTP test
Connection to the mail server: greeting, capabilities, STARTTLS, ports 25/465/587.
Full version
Developer
Encoder
Base64, URL, HTML, hex and Punycode – encode and decode, all local.
Full version
Hashes
MD5, SHA-1, SHA-256, SHA-512 and CRC32 for text and files, with comparison for downloads.
Full version
JWT decoder
Read a JSON Web Token: header, payload, expiry – and verify HS256 with a secret.
Full version
JSON formatter
Format, minify or validate JSON.
Full version
Timestamp
Convert Unix time to a date and back, UTC and local, ISO 8601.
Full version
Password generator
Secure passwords, passphrases and PINs with the operating system's randomness.
Full version
MAC vendor
Which vendor is behind a MAC address? With IEEE list, offline.
Full version
System
Hosts file
View and edit the hosts file – to test migrations without DNS, with admin rights prompt.
Full version
DNS cache & DHCP
Show and flush the DNS cache, renew or release the DHCP address.
Full version
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