A BRIEF INQUIRY INTO ONLINE RELATIONSHIPS by THE 1975 has sold 100,815 copies in Korea and United Kingdom.
A BRIEF INQUIRY INTO ONLINE RELATIONSHIPS certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Korea |
815 | RIAK / Gaon charts |
Korea Sales: 815
Certification / note: RIAK / Gaon charts
Certification Date / sales as of:
|
|
 United Kingdom |
100,000 | 1x Gold | 22 February,2019 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 22 February,2019
|
| Total sales | 100,815 | (in 2 countries) |
Total
Sales: 100,815
(in 2 countries)
|
Year-end chart performance for A BRIEF INQUIRY INTO ONLINE RELATIONSHIPS
| Chart 2018 | Rank | Sales |
| South Korean International Albums (Gaon) |
68 | 815 |
| UK Albums (Official Charts) |
85 | |
| Chart 2019 | Rank | Sales |
| South Korean International Albums (Gaon) |
88 | 474 |
| UK Albums (Official Charts) |
54 |