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ドメインを購入する前に行う徹底的な調査です。商標侵害の有無、バックリンクプロファイル、歴史的な使用履歴などを確認します。
使用例
Before bidding $3,000 on an expired domain at auction, an investor checks archive.org and discovers it was used for a spam pharma site in 2019 — the name is blacklisted by major email providers, making it worthless for most end-user buyers.