Discover who is hosting your or anyone's website. Get information about the website IP address, name servers and more.

Learn Alexa traffic rank of a website, which is based on 3 months of aggregated traffic data from millions of Alexa Toolbars in use.

Discover age of a domain name, which is one of the criteria search engines use to rank a web site.

The reverse DNS lookup tool will query the DNS system to find a hostname of an IP address.

The HTTP Server header tool displays the response header accompanied with body of the HTTP document.

Check if a website is down for everyone or just you. Sometimes, it isn't clear if a website is down or you're just having trouble with your computer. Use this tool to verify if the site is available for everyone.

Find your browser's user agent, or enter the "User Agent" string and determine the platform, operating system, and browser version.

Trace source of an email where it was originated, and the IP address and location of the mail server.

Use this tool to verify if an email address is valid, and also check to ensure mailbox exists and can receive email.

The proxy check tool will analyze your HTTP connection, and determines if proxy server is behand your computer.

Divide your IP network into sub-networks by calculating network address known as a subnet mask.

Find your public IP address of a computer connecting to the Internet, and discover your browser data.

Find geolocation including city, region and country of an IP address provided by a handful of IP Location providers.

IPv4 and IPv6 addresses are represented as a 32-bit or 128-bit numbers respectively. This conversion tool will convert the IP address into a decimal number.

Generate a htpasswd file from a .htaccess file to restrict access to protected areas.

Improve the performance of your website by minifying the size of the CSS and Javascript files.

Generate a strong password with letters, numbers and symbols.

Generate crontab syntax based on the hours, minutes, days, months and weekdays as the criteria.

Generate QR codes for plain texts, web URLs, SMS messages, business cards, or phone numbers.

Unix timestamp is stored in seconds beginning from 1/1/1970. The value of 0 will be 1970-01-01 00:00, and the negative numbers will go backwards. The epoch number cease to work on 2038-01-19 due to a 32-bit overflow unless the number is converted to a 64-bit.

Convert a decimal number to Binary or Hexadecimal, or vice versa.

Copy and past your text into the textarea, and we'll count the words and characters for you.