Table 1.

Summary of costs required for each promotion method.

Promotion method	Total cost, JP ¥a,b	Total visitors to website	Actual cost per visitor, JP ¥b
Press release reports (1st and 2nd week+)	7,620,000	—c	—
Newspaper advertisement	6,300,000	—	—
Web listing advertisement	4,102,124	35,207	116.6
Web banner advertisement	1,468,000	1,138	1289
Email invitation to IROOPd	0e	—	—

^aJP ¥: Japanese yen.

^bA currency exchange rate of US $1 = JP ¥108 was applicable on October 31, 2019.

^c—: not available.

^dIROOP: Integrated Registry of Orange Plan.

^eSending the emails did not require any cost by itself.