confidence improvement accuracy (*)   (**)  (***)
 dns/lookup.js n=5000000 all='false' name=''                 ***     14.85 %       ±2.49% ±3.31% ±4.31%
 dns/lookup.js n=5000000 all='false' name='::1'              ***      4.88 %       ±1.70% ±2.28% ±2.99%
 dns/lookup.js n=5000000 all='false' name='127.0.0.1'        ***      3.36 %       ±1.23% ±1.64% ±2.13%
 dns/lookup.js n=5000000 all='true' name=''                  ***     12.27 %       ±2.27% ±3.04% ±3.98%
 dns/lookup.js n=5000000 all='true' name='::1'               ***      5.55 %       ±1.36% ±1.81% ±2.36%
 dns/lookup.js n=5000000 all='true' name='127.0.0.1'         ***      2.99 %       ±1.19% ±1.59% ±2.07%

Be aware that when doing many comparisons the risk of a false-positive
result increases. In this case there are 6 comparisons, you can thus
expect the following amount of false-positive results:
  0.30 false positives, when considering a   5% risk acceptance (*, **, ***),
  0.06 false positives, when considering a   1% risk acceptance (**, ***),
  0.01 false positives, when considering a 0.1% risk acceptance (***)