Free Hosting & Network Tools

Free online checkers and calculators: test a server, a domain or a network connection, then find a VPS that fits the job. No sign-up required. When you are ready to compare plans, see our VPS hosting rankings or the full hosting directory.

Network & uptime

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Data Center Ping Test
Latency from you to hosting providers
Popular
Port Checker
Is a TCP port open on a server or site
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Website Down Checker
Down for everyone or just you
Server Ping & Response Time
Response time of a host by IP or domain

Domains & DNS

Popular
Whois Lookup
Registrar, registration and expiry dates
DNS Lookup
A, AAAA, MX, TXT, NS and CNAME records
Domain to IP Lookup
The current IP address of a domain
Domain Age Checker
When a domain was registered and how old it is

Security & SSL

SSL Certificate Checker
Certificate validity and expiry date
HTTP Headers Checker
Status code, redirects and headers
IP Blacklist Checker
IP reputation on spam blocklists
Who Is Hosting This Site?
Find the hosting provider and IP of a domain

Calculators

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VPS Calculator
How much CPU/RAM you need → matching plans
New
Subnet Calculator
CIDR, netmask, host range and host count
Data Unit Converter
GB ⇄ GiB, Mbps ⇄ MB/s
Password Generator
Strong passwords for root and control panels