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class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/email-marketing-services/aweber/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'aweber', this, false)">AWeber</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/email-marketing-services/omnisend/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'omnisend', this, false)">Omnisend</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/email-marketing-services/mailchimp/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'mailchimp', this, false)">MailChimp</a> </li> <li class="header-nav-cat-all"> <a href="https://www.websiteplanet.com/ja/email-marketing-services/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'View all メールマーケティングサービス', this, false)">最高のサービスを見る</a> </li> </ul> </li> </ul> </li><li class="header-nav-menu-item menu-item-has-children menu-item-vendors" tabindex="0"><span class="header-nav-menu-item-text">クーポン<span class="header-nav-menu-item-coupon" dir="ltr">99+</span></span> <ul class="header-nav-sub-menu coupons"> <li class="menu-item-second-level"> <a href="https://www.websiteplanet.com/ja/coupons/website-builders/" class="header-nav-cat-title newmenu_websitebuilder" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'ウェブサイトビルダー', this, false)"> ウェブサイトビルダー </a> <ul class="sub-menu" data-catid="264"> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/wix/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'Wix', this, false)"> Wix<span class="countForV"> (5)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/squarespace/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'SquareSpace', this, false)"> SquareSpace<span class="countForV"> (4)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/shopify/" 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'Top_menu_Events', 'ja', 'レンタルサーバー', this, false)"> レンタルサーバー </a> <ul class="sub-menu" data-catid="263"> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/hostinger/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'Hostinger', this, false)"> Hostinger<span class="countForV"> (6)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/siteground/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'SiteGround', this, false)"> SiteGround<span class="countForV"> (2)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/1and1-ionos-hosting/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'IONOS', this, false)"> IONOS<span class="countForV"> (2)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/a2-hosting/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'A2 Hosting', this, false)"> A2 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this, false)"> Fiverr Logo Design<span class="countForV"> (3)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/wix-logo-maker/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'Wix Logo Maker', this, false)"> Wix Logo Maker<span class="countForV"> (2)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/looka/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'Looka', this, false)"> Looka<span class="countForV"> (3)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/designcrowd/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'DesignCrowd', this, false)"> DesignCrowd<span class="countForV"> (3)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/99designs/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', '99designs', this, false)"> 99designs<span 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this, false)"> AWeber<span class="countForV"> (2)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/coupon/omnisend/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'Omnisend', this, false)"> Omnisend<span class="countForV"> (3)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/mailchimp/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'MailChimp', this, false)"> MailChimp<span class="countForV"> (1)</span> </a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/coupon/getresponse/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'GetResponse', this, false)"> GetResponse<span class="countForV"> (5)</span> </a> </li> <li class="header-nav-cat-all"> <a href="https://www.websiteplanet.com/ja/coupons/email-marketing-services/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'View all メールマーケティングサービス', this, false)">最高のサービスを見る</a> </li> </ul> </li> </ul> </li><li class="header-nav-menu-item menu-item-has-children menu-item-tools" tabindex="0"><span class="header-nav-menu-item-text">ツール</span> <ul class="header-nav-sub-menu popular"> <li class="menu-item-second-level menu-item-second-level-tools newmenu_populartools"> <a href="https://www.websiteplanet.com/ja/webtools/"> <span class="header-nav-cat-title newmenu_populartools">人気ツール</span> </a> <ul class="sub-menu "> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/webtools/imagecompressor/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'PNG・JPGファイル圧縮ツール', this, false)">PNG・JPGファイル圧縮ツール</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/webtools/free-qr-code-generator/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', '無料QRコードジェネレーター', this, false)">無料QRコードジェネレーター</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/webtools/sharelink/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', '共有リンク作成ツール', this, false)">共有リンク作成ツール</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/webtools/check-domain/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'ドメイン名の登録期限チェッカー', this, false)">ドメイン名の登録期限チェッカー</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/webtools/down-or-not/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', 'サイトはダウンしている?', this, false)">サイトはダウンしている?</a> </li> <li class="header-nav-cat-item"> <a href="https://www.websiteplanet.com/ja/webtools/multiple-url/" onclick="trackClickout('event', 'Top_menu_Events', 'ja', '複数URLオープナー', this, false)">複数URLオープナー</a> </li> </ul> </li> <li class="menu-see-all-tools"><a href="https://www.websiteplanet.com/ja/webtools/" class="See-All-Tools"> すべてのツールを見る </a></li> </ul> <ul class="header-nav-sub-menu" id="see-all-tools" style="display:none;"> <li class="menu-item-second-level 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method="get"> <div class="header-search-container"> <label for="header-search-submit" style="display:none;" ><span style="display:none;" >1</span></label> <input type="submit" id="header-search-submit" class="search-submit" value="Search" /> <label for="header-search-input" > <span style="display:none" >1</span></label> <input type="search" class="search-field" id="header-search-input" placeholder="検索する…" value="" name="header-search-input" autocomplete="off" data-lang="ja"> <span id="header-nav-menu-item-search-close"></span> </div> </form> <span id="header-search-autocomplete" data-empty="何も見つかりませんでした。" data-vendor-string="レビュー" data-post-string="ブログ記事" data-score-string="当社のスコア"></span> </li> <li class="header-nav-menu-item menu-item-has-children menu-item-currency" id="header-nav-menu-item-cur" tabindex="0"> <span class="header-nav-menu-item-text" id="header-nav-menu-item-text-cur" data-cur="JPY">¥</span> <ul class="header-nav-sub-menu"> <li class="menu-currency-title">主な通貨</li> 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<h1 class="down-tool-title"> 鯖落ち確認ツール│サイトが落ちてるか無料で確認 │2024年│ </h1> <p class="down-tool-subtitle">誰もサイトにアクセスできないのか、あなただけがアクセスできないのか確認しましょう。</p> </div> </div> <div class="form-wrapper"> <form class="down-tool-form" id="form" action=""> <input type="text" name="sitemap" id="down-tool-form-input" placeholder=" あなたのサイトのURL"> <label for="down-tool-form-input" ><span style="display:none" >1</span></label> <span id="down-tool-form-clear"></span> <span class="down-tool-form-desc"> 例:websiteplanet.com</span> <span class="error-message" id="error-message-empty">この入力フィールドは必須です。</span> <span class="error-message" id="error-message-uglyurl">無効のURL. URLが正しいことを確認してください!</span> <!--<input type="submit" id="down-tool-form-submit" value="確認">--> <input type="submit" id="down-tool-form-submit" value="確認"> <div id="captcha" data-size="invisible"></div> </form> <div id="progress-block"> <div id="bar"><div id="progress"></div></div> </div> </div> <div id="down-tool-result"></div> <div id="vendors"></div> <div id="footer-disclosure" class="FTCfooter-b resultd"> <div class="ftc-wrapper-footer "><div class="ftc-container"><div id="ftc-blockc" class="ftc-block">当サイトでは徹底した検証と調査をもとにおすすめランキングを作成していますが、読者の皆さまからのご意見やプロバイダとの商業契約も考慮しています。このページにはアフィリエイトリンクが含まれます。<a href="https://www.websiteplanet.com/disclosure/" target="_blank">「広告に関する情報開示」</a></div></div></div> </div> <div id="down-tool-faq" class="webtools-faq"> <div class="down-tool-faq-container"> <h2 class="down-tool-faq-title">よくある質問</h2> <div class="down-tool-faq-items"> <div><h3 class="shortcode-faq-question-inline">このツールは何ですか?</h3> <span class="shortcode-faq-answer-inline">サイトにアクセスしたいときにエラーメッセージが表示されるのは嫌ですよね。また、自分のサイトを確認しているときにエラーがあるのも嫌なことです。パニックする前に、あなただけアクセスできないのか、それとも誰もサイトにアクセスできないのか確認する必要があります。あなただけアクセスできないなら設定に問題がある可能性があります。皆がアクセスできない場合はホスティングプロバイダやデータベース、ソフトウェア、DNSなどに問題があったり、DDoS攻撃など、ハッカーによる攻撃のため、アクセスできないなどの理由が考えられます。</span> <h3 class="shortcode-faq-question-inline">このツールはどういう時に利用したらいいのですか?</h3> <span class="shortcode-faq-answer-inline">このツールが役に立つシナリオは二つ考えられます。 ユーザーがあなたのサイトにアクセスできなかった場合:サイトの利用者があなたのサイトにアクセスできていないことをカスタマーサポートセンターかソーシャルメディアに問い合わせたという時です。その場合、このツールを使ってウェブサーバーが外部から利用可能で応答しているのかを確認してからIT部に連絡しましょう。すべての利用者がサイトを利用できないという場合、再びアップするように適切な対応を始められます。ユーザー側に問題がある場合は、相手がサイトにアクセスできるようにするためのアドバイスをすることができます(キャッシュを削除するなど)。 あなたがアクセスしようとしているサイトがアクセス不可能な場合:アクセスしようとしているサイトのURLを入力してみましょう。エラーメッセージが表示されるか確認してウェブサイトがダウンしているかどうか分かります。このツールを使えばあなた側に接続などの問題があるのか、サイト側で問題が発生しているのか確認することができます。サイト側の問題だと、あなたはどうしようもありません。</span> <h3 class="shortcode-faq-question-inline">このツールはどういう仕組みですか?</h3> <span 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class="new-post-row new-post-section-claps"> <div id="post-single-trid">204514</div> <div id="post-single-id">204514</div> <div class="new-post-container new-post-section-stars"> <div class="new-post-section-stars-desc">このツールが気に入りましたか? 評価してください!</div> <div class="rating rating-article not-active" id="new-post-stars-rating" data-tip1 = "悪い" data-tip2 = "あまり良くない" data-tip3 = "Ok" data-tip4 = "良い" data-tip5 = "素晴らしい" data-vote="" data-val="1" data-message="ありがとうございます!" data-sorry="申し訳ございません。"> <div id = "new-post-stars-rating-tooltip"></div> </div> <div class="new-post-section-stars-count"> <span class="new-post-section-stars-count-rating" id="new-post-section-stars-count-rating">4.7</span> (<span class="new-post-section-stars-count-with-text"><span class="new-post-section-stars-count-items" id="new-post-section-stars-count-items">3807</span> ユーザーが投票しました</span>) <div class = "undo-message">投票済みです! <span id="undo-rating-span">取り消し</span></span></div> <div id = "not-used-webtools-message">評価するにはツールを利用する必要があります。</div> </div> <div class="new-post-section-stars-form"> <form action="" id="new-post-section-stars-form"> <label for="new-post-section-stars-form-message"> <textarea class="new-post-section-stars-form-text" id="new-post-section-stars-form-message" name="new-post-section-stars-form-text" placeholder="ツールの改善点をお教えください。"></textarea> <span style="display:none;">1</span></label> <span class="new-post-form-error-message text-error" id="new-post-section-stars-form-required">この入力フィールドは必須です。</span> <span class="new-post-form-error-message text-error" id="new-post-section-stars-form-big">Maximal length of comment is equal 80000 chars</span> <span class="new-post-form-error-message text-error" id="new-post-section-stars-form-small">コメントは最低10文字です</span> <label for="stars-form-review-email"> <input type="text" name="stars-form-review-email" id="stars-form-review-email" class="new-post-section-stars-form-text" placeholder="あなたのeメール"/> <span style="display:none;">1</span></label> <span class="new-post-form-error-message email-error" id="stars-form-review-email-error-required">メールアドレスを入力してください</span> <span class="new-post-form-error-message email-error" id="stars-form-review-email-error-incorrect">メールアドレスが無効です</span> <div class="new-post-section-starss-form-submit"> <button id="new-post-section-stars-form-button" class="new-post-section-stars-form-button">送信</button> </div> </form> </div> </div> </section> <div id="clap-popup-bg"> <div class="clap-popup-bg-inner"> <div class="clap-popup-container"> <span class="clap-popup-close" id="clap-popup-close"></span> <p class="clap-popup-title"><span>気に入ってもらえて</span>良かったです!</p> <p class="clap-popup-share-title">お友達と共有しましょう!</p> <div class="new-comment-final-window-share-items new-post-row"> <a href="https://www.linkedin.com/shareArticle?mini=true&title=Down or not&summary=&source=websiteplanet&url=https://www.websiteplanet.com/ja/webtools/down-or-not/" target="_blank" rel="nofollow 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