Some Common tools for webmasters to trouble shoot websites , servers and networks. Some tools allow for creation of reports which can be shared .
Extract email from text and format as per requiremetns.
A small free SMTP Server for testing your Email functionality.
Test your SMTP Server if its working.
Email List Cleaner.
Get SPF & DKIM key records for a domain.
Network ping tests connectivity to a remote host.
Network test a TCP port to check if it is open or not.
Curl based HTTP header checker to check response headers.
Create a SSH Key pair for use with SSH tools.
Check if installed SSL Certificate is valid or not.