404 をカスタマイズする javascript
Google ウェブマスターツール で 404 ページに javascript を埋め込むと、Google ならではのちょっと気の利いた内容を出力してくれる javascript がありました。それが『拡張された 404 ページ』。（直訳すぎて痛いなぁw） ヘルプをみると『カスタム 404 ウィジェット』と呼ぶみたいですね。
404 ページっていうのは「このページは存在しません」というエラーページですね。
TypePad ではユーザが独自の 404 ページを設置することができないので、この Tips は自分でサーバを管理されている方やレンタルサーバをご利用の方には有効ですね。
私が利用しているレンタルサーバ （XREA）で試してみました。http://www.s14u.info/mt/archive というページもディレクトリも存在しませんが、こちらにアクセスしてみてください。検索窓が出たり、archives.html を候補ページを表示していたりしてちょっと気が利いた感じになりますね。
ニッチですがいい感じ
かも。
seealso:
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