Custom script for Google Sheets. Filter domain-related cells based on colour, tld extension, etc.
Functions transform cell tables to filtered single-column lists.
In Google Sheets, navigate to Tools > Script Editor. Copy the FilteringTools.js script to a new file and save. Re-load your Sheet. Grant the script permission from your Google account, and a custom "Filtering Tools" menu will appear.
getDotComs
getCoUks
getColouredCells
getBlueCells
tableToHTML
tableToList
extractHrefsAndTitles
Execute functions via their buttons on the "Filtering Tools" menu. Script binds to the Google Sheet it is installed on.