透明性レポート
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ウェブ上での HTTPS 暗号化
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透明性レポート

ウェブ上での HTTPS 暗号化

HTTPS は、ブラウザまたはアプリからアクセス先のウェブサイトに安全に接続して安全なブラウジングを実現するのに役立ちます。安全な接続を確保するため、HTTPS は SSL や TLS などの暗号化技術を利用します。このレポートでは、ウェブ全体における HTTPS の導入状況と使用状況に関するデータを提供します。

暗号化で安全を確保

HTTPS のウェブ接続により、傍受や中間者攻撃、信頼できるウェブサイトへのなりすましを防ぐことができます。つまり、暗号化によって、情報が途中で盗み取られるのを阻止し、やり取りする情報の完全性を確保することが可能です。古いハードウェアやソフトウェアは最新の暗号化技術に対応していないことが多いため、こうしたデバイスを使っているとセキュリティ脅威の脆弱性が高くなる恐れがあります。

暗号化の障害

すべてのトラフィックの暗号化を達成するにあたっては、いくつかの技術的な問題や政治的な問題が妨げとなっています。たとえば、一部の国 / 地域や組織では、HTTPS トラフィックが遮断されていたり、その他の形で阻害されています。また、すべての企業や組織に HTTPS の導入に必要な技術的リソースがあったり、それを最優先としているわけではありません。Google では、Blogger のようなサービスの場合、ユーザーの Google 以外のドメインが使用可能で HTTPS に対応していないこともあるため、証明書の管理が難しくなる可能性があります。

Google への暗号化されていないユーザー トラフィック（デバイスのタイプ別）

一部の古いデバイスとオペレーティング システムは、最新の暗号化、規格、またはプロトコルに対応していません。そうしたデバイスまたはオペレーティング システムがすでにソフトウェア アップデートのサポートを終了している場合は、将来的に暗号化に対応する可能性もないと考えられます。

パソコンモバイル50.0%50.0%
環境暗号化されていないトラフィックの割合
パソコン0.5
モバイル0.5

暗号化で安全を確保

HTTPS のウェブ接続により、傍受や中間者攻撃、信頼できるウェブサイトへのなりすましを防ぐことができます。つまり、暗号化によって、情報が途中で盗み取られるのを阻止し、やり取りする情報の完全性を確保することが可能です。古いハードウェアやソフトウェアは最新の暗号化技術に対応していないことが多いため、こうしたデバイスを使っているとセキュリティ脅威の脆弱性が高くなる恐れがあります。

暗号化の障害

すべてのトラフィックの暗号化を達成するにあたっては、いくつかの技術的な問題や政治的な問題が妨げとなっています。たとえば、一部の国 / 地域や組織では、HTTPS トラフィックが遮断されていたり、その他の形で阻害されています。また、すべての企業や組織に HTTPS の導入に必要な技術的リソースがあったり、それを最優先としているわけではありません。Google では、Blogger のようなサービスの場合、ユーザーの Google 以外のドメインが使用可能で HTTPS に対応していないこともあるため、証明書の管理が難しくなる可能性があります。

HTTPS 暗号化（Chrome プラットフォーム別）

Google では、2015 年の初めから、Chrome ユーザーから送信された使用統計情報を活用し、HTTPS 接続の普及状況を追跡してきました。このグラフは、さまざまなプラットフォームや国 / 地域における HTTPS の普及を示しています。パソコン ユーザーは表示するページの半分以上を HTTPS 経由で読み込んでおり、HTTPS ページの閲覧時間はウェブの利用時間の 3 分の 2 に及びます。モバイル デバイスの場合、HTTPS の普及率はパソコンと比較すると劣りますが、徐々に暗号化の利用が進みつつあることがわかります。

Chrome で HTTPS 経由で読み込まれたページの割合（プラットフォーム別）

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期間WindowsAndroidChromeOSLinuxMac
2015/03/1439%29%44%44%43%
2015/03/2139%29%45%44%43%
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2020/11/0789%93%98%77%94%
2020/11/1489%93%98%77%95%
2020/11/2189%93%98%77%95%
2020/11/2889%93%97%77%94%
2020/12/0589%93%98%77%95%
2020/12/1289%93%98%77%95%
2020/12/1989%93%98%77%94%
2020/12/2688%93%97%75%93%
2021/01/0288%93%97%75%94%
2021/01/0989%93%98%77%95%
2021/01/1689%93%98%77%95%
2021/01/2389%93%98%76%95%
2021/01/3089%93%98%76%95%
2021/02/0689%93%98%76%95%
2021/02/1390%93%98%77%95%
2021/02/2090%93%98%77%95%
2021/02/2789%93%98%77%95%
2021/03/0689%93%98%77%95%
2021/03/1390%93%98%77%95%
2021/03/2089%93%98%77%95%
2021/03/2790%93%98%77%95%
2021/04/0390%93%98%77%95%
2021/04/1090%93%98%78%95%
2021/04/1790%93%98%78%95%
2021/04/2490%93%98%78%95%
2021/05/0190%93%98%79%95%
2021/05/0890%93%98%79%95%
2021/05/1590%93%98%79%95%
2021/05/2290%93%98%79%95%
2021/05/2990%93%98%79%95%
2021/06/0590%93%98%79%95%
2021/06/1290%93%98%78%95%
2021/06/1990%93%97%78%95%
2021/06/2690%93%97%78%94%
2021/07/0390%94%97%78%94%
2021/07/1090%94%97%77%94%
2021/07/1790%94%97%77%94%
2021/07/2490%94%97%77%95%
2021/07/3190%94%97%77%95%
2021/08/0790%94%97%78%95%
2021/08/1491%94%98%79%95%
2021/08/2191%94%98%79%95%
2021/08/2891%94%98%79%95%
2021/09/0491%94%98%79%95%
2021/09/1191%94%98%79%95%
2021/09/1891%94%98%80%95%
2021/09/2591%94%98%80%96%
2021/10/0291%94%98%80%96%
2021/10/0992%94%98%80%96%
2021/10/1691%94%98%80%96%
2021/10/2391%95%98%80%95%
2021/10/3091%95%98%80%96%
2021/11/0691%95%98%81%96%
2021/11/1391%95%98%80%96%
2021/11/2091%95%98%80%96%
2021/11/2791%95%98%80%95%
2021/12/0491%95%98%80%96%
2021/12/1191%95%98%80%96%
2021/12/1891%95%98%80%96%
2021/12/2590%95%98%79%95%
2022/01/0191%95%98%79%95%
2022/01/0891%95%98%80%96%
2022/01/1591%95%99%81%96%
2022/01/2291%95%98%80%96%
2022/01/2992%95%99%80%96%
2022/02/0592%95%99%80%97%
2022/02/1292%95%99%80%96%
2022/02/1991%95%98%80%96%
2022/02/2691%95%98%80%96%
2022/03/0591%95%99%80%96%
2022/03/1291%95%99%80%96%
2022/03/1991%95%98%80%96%
2022/03/2691%95%99%80%96%
2022/04/0291%95%98%80%96%
2022/04/0992%95%98%80%96%
2022/04/1691%95%98%80%96%
2022/04/2391%95%98%80%96%
2022/04/3091%95%99%80%96%
2022/05/0792%95%99%81%96%
2022/05/1491%95%99%80%96%
2022/05/2191%95%99%80%96%
2022/05/2891%95%98%80%96%
2022/06/0491%95%98%80%96%
2022/06/1191%95%98%80%96%
2022/06/1891%95%98%80%96%
2022/06/2591%95%98%80%96%
2022/07/0291%95%98%80%96%
2022/07/0991%95%98%80%95%
2022/07/1691%95%98%80%96%
2022/07/2391%95%98%79%96%
2022/07/3091%95%98%79%96%
2022/08/0691%96%98%79%96%
2022/08/1391%96%98%79%96%
2022/08/2091%96%98%80%96%
2022/08/2791%96%99%79%96%
2022/09/0392%96%99%79%96%
2022/09/1092%96%99%80%96%
2022/09/1792%96%99%80%96%
2022/09/2492%96%99%80%96%
2022/10/0192%96%99%80%96%
2022/10/0892%96%99%80%97%
2022/10/1592%96%99%80%96%
2022/10/2292%96%99%80%96%
2022/10/2992%96%99%81%96%
2022/11/0592%97%99%80%96%
2022/11/1292%97%99%80%96%
2022/11/1992%97%99%80%96%
2022/11/2692%97%98%80%96%
2022/12/0392%97%99%80%97%
2022/12/1092%97%99%80%96%
2022/12/1792%97%99%80%96%
2022/12/2492%97%98%79%96%
2022/12/3192%97%98%79%96%
2023/01/0792%97%99%79%97%
2023/01/1492%97%99%80%97%
2023/01/2193%97%99%80%97%
2023/01/2893%97%99%80%97%
2023/02/0492%97%99%80%97%
2023/02/1192%97%99%80%97%
2023/02/1892%97%99%80%97%
2023/02/2592%97%99%80%96%
2023/03/0492%97%99%80%97%
2023/03/1193%97%99%81%97%
2023/03/1892%97%99%81%96%
2023/03/2593%97%99%81%97%
2023/04/0193%97%99%81%97%
2023/04/0893%97%99%81%97%
2023/04/1593%97%99%81%96%
2023/04/2293%97%99%81%97%
2023/04/2993%97%99%81%97%
2023/05/0693%97%99%81%97%
2023/05/1392%97%99%81%97%
2023/05/2092%97%99%80%96%
2023/05/2792%97%99%80%96%
2023/06/0392%97%98%80%96%
2023/06/1092%97%98%81%96%
2023/06/1792%97%98%80%96%
2023/06/2492%97%98%80%96%
2023/07/0192%97%98%80%96%
2023/07/0892%97%98%79%96%
2023/07/1592%97%98%79%96%
2023/07/2292%97%98%79%96%
2023/07/2992%97%98%80%96%
2023/08/0592%97%98%80%96%
2023/08/1292%97%98%79%96%
2023/08/1992%97%98%80%96%
2023/08/2692%97%99%79%97%
2023/09/0293%98%99%80%97%
2023/09/0993%98%99%80%97%
2023/09/1693%98%99%80%97%
2023/09/2393%98%99%80%97%
2023/09/3093%98%99%81%97%
2023/10/0793%98%99%81%97%
2023/10/1493%98%99%80%97%
2023/10/2193%98%99%81%97%
2023/10/2893%98%99%81%97%
2023/11/0493%98%99%81%97%
2023/11/1193%98%99%81%97%
2023/11/1894%98%99%81%97%
2023/11/2593%98%99%81%97%
2023/12/0293%98%99%81%97%
2023/12/0993%98%99%81%97%
2023/12/1693%98%99%81%97%
2023/12/2393%98%99%80%97%
2023/12/3093%98%98%79%97%
2024/01/0694%98%99%80%97%
2024/01/1394%98%99%81%97%
2024/01/2094%98%99%81%97%
2024/01/2794%98%99%81%97%
2024/02/0394%98%99%81%97%
2024/02/1094%98%99%81%98%
2024/02/1794%98%99%81%98%
2024/02/2494%98%99%81%97%
2024/03/0294%98%99%81%97%
2024/03/0994%98%99%81%97%
2024/03/1694%98%99%81%97%
2024/03/2394%98%99%81%97%
2024/03/3094%98%99%82%97%
2024/04/0694%98%99%81%97%
2024/04/1394%98%99%81%97%
2024/04/2094%98%99%82%97%
2024/04/2794%98%99%81%97%
2024/05/0494%98%99%81%98%
2024/05/1194%98%99%81%97%
2024/05/1894%98%99%81%97%
2024/05/2594%98%99%81%97%
2024/06/0194%98%99%81%97%
2024/06/0894%98%99%82%97%
2024/06/1594%98%99%82%97%
2024/06/2294%98%99%81%97%
2024/06/2994%98%99%81%97%
2024/07/0694%98%98%80%97%
2024/07/1394%98%98%81%97%
2024/07/2094%98%98%81%97%
2024/07/2794%98%98%81%97%
2024/08/0394%98%98%81%97%
2024/08/1094%98%99%81%97%
2024/08/1794%98%99%81%97%
2024/08/2494%98%99%81%97%
2024/08/3194%98%99%81%97%
2024/09/0794%98%99%81%97%
2024/09/1494%98%99%81%97%
2024/09/2194%98%99%81%98%
2024/09/2894%98%99%81%97%
2024/10/0594%98%99%82%98%
2024/10/1294%99%99%82%98%
2024/10/1994%99%99%81%97%
2024/10/2694%99%99%81%97%
2024/11/0294%99%99%81%98%
2024/11/0994%99%99%82%98%
2024/11/1694%99%99%81%98%
2024/11/2394%99%99%81%98%
2024/11/3094%99%99%81%97%
2024/12/0794%99%99%81%98%
2024/12/1494%99%99%81%98%
2024/12/2194%99%99%81%97%
2024/12/2894%99%98%80%97%
2025/01/0494%99%99%80%97%
2025/01/1194%99%99%81%98%
2025/01/1894%99%99%81%98%
2025/01/2594%99%99%81%98%
2025/02/0195%99%99%81%98%
2025/02/0894%99%99%81%98%
2025/02/1594%99%99%81%98%
2025/02/2294%99%99%81%98%
2025/03/0194%99%99%81%98%
2025/03/0894%99%99%81%98%
2025/03/1594%99%99%81%97%
2025/03/2294%99%99%81%97%
2025/03/2994%99%99%81%97%

フラグメントや history push state を使用した移動、HTTP または HTTPS 以外のスキーム（新しいタブによるページ移動など）は含まれません。

HTTPS ページの閲覧時間の割合（Chrome プラットフォーム別）

WindowsAndroidChromeOSLinuxMac1月 01, 20171月 01, 20191月 01, 20211月 01, 20231月 01,20251月 01, 20181月 01, 20201月 01, 20221月 01, 20240%10%20%30%40%50%60%70%80%90%100%
期間WindowsAndroidChromeOSLinuxMac
2016/07/3068%36%70%80%69%
2016/08/0668%37%71%83%72%
2016/08/1368%37%71%84%71%
2016/08/2068%37%73%84%71%
2016/08/2769%38%73%85%71%
2016/09/0368%38%73%85%71%
2016/09/1068%38%73%85%71%
2016/09/1769%39%74%85%71%
2016/09/2469%39%74%84%71%
2016/10/0169%39%75%85%71%
2016/10/0869%40%75%85%71%
2016/10/1569%40%75%85%71%
2016/10/2269%40%75%83%71%
2016/10/2969%40%75%83%71%
2016/11/0569%41%74%83%71%
2016/11/1269%41%74%81%71%
2016/11/1969%41%75%80%71%
2016/11/2668%41%73%78%70%
2016/12/0369%42%74%81%71%
2016/12/1069%42%75%79%72%
2016/12/1769%43%75%80%72%
2016/12/2469%42%74%77%72%
2016/12/3169%43%73%76%70%
2017/01/0770%43%75%81%72%
2017/01/1470%43%76%79%73%
2017/01/2170%44%76%79%73%
2017/01/2871%45%77%79%74%
2017/02/0471%46%77%79%74%
2017/02/1171%46%77%79%75%
2017/02/1872%47%78%78%75%
2017/02/2572%48%78%78%75%
2017/03/0472%49%78%79%75%
2017/03/1172%49%78%78%75%
2017/03/1872%50%78%79%75%
2017/03/2573%51%79%78%76%
2017/04/0173%52%79%78%76%
2017/04/0873%53%80%79%76%
2017/04/1573%53%80%79%77%
2017/04/2274%54%80%79%77%
2017/04/2974%54%80%79%77%
2017/05/0675%54%80%80%78%
2017/05/1375%55%80%79%78%
2017/05/2075%55%80%78%78%
2017/05/2775%56%81%80%78%
2017/06/0375%56%81%80%79%
2017/06/1075%56%81%80%79%
2017/06/1775%56%81%81%79%
2017/06/2476%57%82%81%80%
2017/07/0176%57%82%81%80%
2017/07/0876%57%82%80%79%
2017/07/1576%58%82%81%80%
2017/07/2276%58%83%81%80%
2017/07/2976%58%83%81%80%
2017/08/0577%59%83%81%80%
2017/08/1277%59%83%81%80%
2017/08/1977%59%83%81%81%
2017/08/2677%60%84%81%81%
2017/09/0277%60%84%81%81%
2017/09/0977%61%84%81%81%
2017/09/1677%61%84%81%82%
2017/09/2378%62%85%81%82%
2017/09/3078%62%85%81%82%
2017/10/0779%65%85%82%83%
2017/10/1478%65%85%81%83%
2017/10/2179%66%85%81%83%
2017/10/2879%66%86%81%83%
2017/11/0479%67%86%81%83%
2017/11/1180%67%86%82%84%
2017/11/1880%68%86%82%84%
2017/11/2580%68%86%80%83%
2017/12/0280%69%86%82%84%
2017/12/0980%69%86%82%85%
2017/12/1681%69%86%82%85%
2017/12/2381%69%86%81%84%
2017/12/3080%69%86%79%83%
2018/01/0681%69%86%84%85%
2018/01/1381%69%87%83%85%
2018/01/2081%69%87%81%85%
2018/01/2781%69%87%81%85%
2018/02/0381%70%87%81%85%
2018/02/1082%70%87%82%85%
2018/02/1782%70%87%83%86%
2018/02/2482%70%88%82%86%
2018/03/0382%71%88%82%86%
2018/03/1082%71%88%82%86%
2018/03/1782%71%88%82%86%
2018/03/2482%72%88%82%86%
2018/03/3183%72%88%83%86%
2018/04/0783%72%88%82%87%
2018/04/1483%74%88%82%87%
2018/04/2183%74%88%83%87%
2018/04/2883%75%88%83%87%
2018/05/0583%75%88%84%87%
2018/05/1283%75%88%83%87%
2018/05/1983%75%88%83%87%
2018/05/2684%75%88%83%87%
2018/06/0284%76%88%83%87%
2018/06/0984%76%89%83%88%
2018/06/1684%77%89%83%88%
2018/06/2384%77%89%83%88%
2018/06/3085%78%90%84%88%
2018/07/0785%78%91%83%88%
2018/07/1485%79%91%84%88%
2018/07/2185%79%91%84%89%
2018/07/2886%80%91%84%89%
2018/08/0486%80%92%84%89%
2018/08/1186%80%92%84%89%
2018/08/1886%80%92%85%89%
2018/08/2586%81%92%84%90%
2018/09/0187%81%92%84%90%
2018/09/0887%82%92%85%90%
2018/09/1587%82%93%85%90%
2018/09/2287%82%93%85%90%
2018/09/2987%82%93%85%90%
2018/10/0688%83%93%85%91%
2018/10/1387%83%93%85%91%
2018/10/2088%83%93%85%91%
2018/10/2788%83%93%85%91%
2018/11/0388%83%93%86%91%
2018/11/1088%84%93%85%91%
2018/11/1788%84%94%85%91%
2018/11/2488%84%94%84%91%
2018/12/0189%84%94%87%92%
2018/12/0889%84%94%85%92%
2018/12/1589%85%94%85%92%
2018/12/2289%85%94%86%92%
2018/12/2989%85%94%83%90%
2019/01/0589%85%94%87%92%
2019/01/1289%85%94%86%92%
2019/01/1989%85%94%85%92%
2019/01/2689%86%94%85%92%
2019/02/0289%86%95%85%92%
2019/02/0990%86%95%86%93%
2019/02/1689%86%95%85%93%
2019/02/2389%86%95%85%92%
2019/03/0290%87%95%86%92%
2019/03/0990%87%95%86%92%
2019/03/1690%87%95%86%92%
2019/03/2390%87%95%86%92%
2019/03/3090%87%95%87%92%
2019/04/0690%87%95%86%93%
2019/04/1390%88%95%86%93%
2019/04/2090%88%95%86%93%
2019/04/2790%88%95%87%93%
2019/05/0490%88%95%87%93%
2019/05/1190%88%95%87%93%
2019/05/1890%88%96%86%93%
2019/05/2590%88%96%87%93%
2019/06/0190%88%96%86%93%
2019/06/0891%89%96%86%94%
2019/06/1590%89%96%87%93%
2019/06/2290%89%96%86%94%
2019/06/2990%89%96%87%94%
2019/07/0690%89%96%85%93%
2019/07/1391%90%96%86%94%
2019/07/2091%90%96%86%94%
2019/07/2791%90%96%87%94%
2019/08/0391%90%96%86%94%
2019/08/1091%90%96%87%94%
2019/08/1791%90%96%87%94%
2019/08/2491%90%96%86%94%
2019/08/3191%90%97%86%94%
2019/09/0791%90%97%86%94%
2019/09/1491%90%97%86%94%
2019/09/2191%90%97%87%94%
2019/09/2891%90%97%87%94%
2019/10/0592%91%97%86%95%
2019/10/1291%91%97%86%94%
2019/10/1991%91%97%87%94%
2019/10/2691%91%97%86%94%
2019/11/0292%91%97%87%94%
2019/11/0992%91%97%87%94%
2019/11/1692%91%97%87%95%
2019/11/2391%91%97%86%95%
2019/11/3092%91%97%86%94%
2019/12/0792%91%97%87%95%
2019/12/1492%91%97%87%95%
2019/12/2192%91%97%87%94%
2019/12/2892%91%97%85%94%
2020/01/0492%91%97%86%94%
2020/01/1192%91%97%87%95%
2020/01/1892%91%97%87%95%
2020/01/2592%91%97%88%95%
2020/02/0193%91%97%87%96%
2020/02/0892%92%97%87%95%
2020/02/1592%92%97%87%95%
2020/02/2292%92%97%87%95%
2020/02/2992%92%97%87%95%
2020/03/0792%92%97%87%95%
2020/03/1492%92%98%87%95%
2020/03/2193%92%98%85%96%
2020/03/2894%93%98%90%96%
2020/04/0494%93%98%87%96%
2020/04/1194%93%98%91%96%
2020/04/1894%93%99%88%96%
2020/04/2594%93%99%90%96%
2020/05/0294%93%99%89%96%
2020/05/0994%93%99%89%96%
2020/05/1694%93%99%88%96%
2020/05/2394%93%99%86%96%
2020/05/3094%93%98%88%96%
2020/06/0694%93%98%86%96%
2020/06/1394%93%98%87%96%
2020/06/2094%93%98%86%96%
2020/06/2794%93%98%86%96%
2020/07/0494%93%98%85%96%
2020/07/1194%93%98%86%96%
2020/07/1894%93%98%86%96%
2020/07/2594%93%98%86%96%
2020/08/0194%93%98%85%96%
2020/08/0894%93%98%86%96%
2020/08/1594%93%98%85%96%
2020/08/2294%93%99%86%96%
2020/08/2994%93%99%86%96%
2020/09/0594%93%99%86%96%
2020/09/1294%93%98%85%96%
2020/09/1994%94%99%86%96%
2020/09/2694%93%99%86%96%
2020/10/0394%94%99%87%97%
2020/10/1094%94%99%86%97%
2020/10/1794%94%99%87%97%
2020/10/2494%94%99%86%97%
2020/10/3194%94%99%87%97%
2020/11/0794%94%99%87%97%
2020/11/1494%94%99%87%97%
2020/11/2194%94%99%87%97%
2020/11/2894%94%99%86%97%
2020/12/0594%94%99%87%97%
2020/12/1294%94%99%87%97%
2020/12/1994%94%99%86%97%
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2024/10/0597%99%99%89%99%
2024/10/1296%99%99%89%98%
2024/10/1996%99%99%88%98%
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2025/03/1596%99%99%89%98%
2025/03/2296%99%99%89%98%
2025/03/2996%99%99%89%98%

Chrome で複数のタブを開いている場合は、表示中のタブのデータのみが送信されます。HTTP や HTTPS 以外のスキーム（chrome:// など）は送信されません。

世界各国における Chrome での HTTPS の使用状況

Chrome での HTTPS の普及速度は国 / 地域によって差があります。たとえば、HTTPS の使用が比較的緩やかに拡大している日本と比べ、ロシアでの HTTPS の普及は急速に進んでいます。

このグラフで取り上げている国 / 地域の選定方法の詳細

Chrome で HTTPS 経由で読み込まれたページの割合（国 / 地域別）

ブラジルドイツフランスインドネシアインド日本メキシコロシアトルコアメリカ合衆国1月 01, 20161月 01, 20181月 01, 20201月 01, 20221月 01, 20240%10%20%30%40%50%60%70%80%90%100%

フラグメントや history push state を使用した移動、HTTP または HTTPS 以外のスキーム（新しいタブによるページ移動など）は含まれません。

Chrome での HTTPS ページの閲覧時間の割合（国 / 地域別）

ブラジルドイツフランスインドネシアインド日本メキシコロシアトルコアメリカ合衆国1月 01, 20171月 01, 20191月 01, 20211月 01, 20231月 01,20251月 01, 20181月 01, 20201月 01, 20221月 01, 20240%10%20%30%40%50%60%70%80%90%100%

Chrome で複数のタブを開いている場合は、表示中のタブのデータのみが送信されます。HTTP や HTTPS 以外のスキーム（chrome:// など）は送信されません。

2024 年 8 月現在、Google サービス全体の暗号化されたトラフィックとリクエストに関するグラフはアーカイブされています。

暗号化によりウェブの安全性が高まります

HTTPS は、オンラインで閲覧するコンテンツがインターネット サービス プロバイダなどのネットワーク上の第三者によって傍受または改変されていないことを保証します。

サイト所有者の方へ: HTTPS を有効にして訪問者を保護する方法をご確認ください