some useful info and a very useful site. thanks 
the more the merrier and i'd like to add Jotti's malware scan,
https://virusscan.jotti.org/en
in Firefox and Pale Moon, use VTzilla:
VTzilla
https://addons.mozilla.org/en-US/firefox/addon/vtzilla/?src=search
For Chrome, Opera* and Vivaldi, use VTchromizer:
VTchromizer
https://chrome.google.com/webstore/detail/vtchromizer/efbjojhplkelaegfbieplglfidafgoka
For Opera, you need to have the following extension installed to be able to get extensions from the Chrome Web Store:
Download Chrome Extension
https://addons.opera.com/en-gb/extensions/details/download-chrome-extension-9/?display=en
The option to scan is added to the context (right-click) menu with these extensions.
the more the merrier and i'd like to add Jotti's malware scan,
https://virusscan.jotti.org/en
in Firefox and Pale Moon, use VTzilla:
VTzilla
https://addons.mozilla.org/en-US/firefox/addon/vtzilla/?src=search
For Chrome, Opera* and Vivaldi, use VTchromizer:
VTchromizer
https://chrome.google.com/webstore/detail/vtchromizer/efbjojhplkelaegfbieplglfidafgoka
For Opera, you need to have the following extension installed to be able to get extensions from the Chrome Web Store:
Download Chrome Extension
https://addons.opera.com/en-gb/extensions/details/download-chrome-extension-9/?display=en
The option to scan is added to the context (right-click) menu with these extensions.