Returning a 404 error may occur due to having not enough information for the search engines to fetch or the site is unindexed because of discontinued.
Ighaghachi njehie 404 nwere ike ịbịaru n'ihi ịnweghi ozi zuru ezu maka ọchụchọ ahụengines iji weghachite ma ọ bụ na saịtị ahụ enweghị akwụkwọ maka ịkwụsị.