Chosen for Japanese retail and for platforms that serve visibly different content to a local address.
Content differs sharply for local visitors
More than in most markets, the same page serves a different assortment inside the country. Collecting from outside gives you a different catalogue entirely.
Encoding and text handling
Check that your parser handles the character set correctly end to end. Problems here appear as silently truncated fields, with no error to catch.
Latency
Short across East Asia, long to Europe. Host the collector in the region for anything sizeable.
Pool size
Fifteen to thirty addresses for a typical retail job.
