Category Archives: Tools

Server Headers Tool

Use this free online tool to check the HTTP headers returned by a web server. You can specify either domain name, URL or IP address of the web server.

Request Headers Tool

Use this free online tool to check HTTP headers sent by your browser when making requests to a web server.

Verify Email Tool

Use this free online tool to verify if an email address or account is valid. It checks the format of the email and then queries the appropriate mail server to check if it is accepting email for this address.

Spam Blacklist Check Tool

Use this free online tool to check if your mail server (domain or IP) is listed on spam lists or in other words – spam blacklisted.

IDN Convert Tool

Use this free online tool to convert domain names between ASCII and IDN (International Domain Name) format.

Whois Tool

Use this free online tool to get whois information for a domain.