Which one did it?

[mrzephyrus]

Just Whitelist the domain. You can do this either through the web interface or command line. In this case, the command you would issue would be pihole -w thepiratebay.org

@jacob.salmela

Whitelist or Blacklist A Domain

-w Usage

Usage: pihole -w [options] <domain> <domain2 ...>
Example: 'pihole -w site.com', or 'pihole -w site1.com site2.com'
Whitelist one or more domains

Additionally, you can query the source list of a domain by

@jacob.salmela

Ad List Query

Usage: pihole -q [option] <domain>
Example: 'pihole -q -exact domain.com'
Query the adlists for a specified domain

Options:
  -adlist             Print the name of the block list URL
  -exact              Search the block lists for exact domain matches
  -all                Return all query matches within a block list
  -h, --help          Show this help dialog

This command is useful to find out what list a domain appears on. Since we don’t control what the third-parties put on the block lists, you may find that a domain you normally visit stops working. If this is the case, you could run

pihole -q somedomain.com

and it will return the list the domain was originally found on.

Again this can also be done from both the web user interface or command line. You can learn more about these commands and more here.