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YYZ (Toronto) on 2026-08-14

著者: Cloudflare
2026年8月14日 19:01

🤖 AI Summary

Cloudflareは2026年8月14日にトロント(YYZ)データセンターで計画的なメンテナンスを実施しました。以下の要点を含みます:

- イベント日時:2026年8月14日 8:00UTCから10:01UTCまで
- メンテナンス内容:ネットワークインターフェースの一時停止と再起動
- 影響範囲:トロント(YYZ)
- メンテナンス中、遅延が発生する可能性あり。地域内のユーザーには配慮が必要
- PNI / CNI顧客は代替ルートの設定を確認してください

Cloudflareのダッシュボード経由で通知を受け取れるようになりました(メール・PagerDuty・ウェブ_hooks)。詳細はhttps://developers.cloudflare.com/notifications/notification-available/#cloudflare-status参照。

Aug 14, 10:01 UTC
Completed - The scheduled maintenance has been completed.

Aug 14, 08:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 14, 07:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 13, 09:50 UTC
Scheduled - We will be performing scheduled maintenance in YYZ (Toronto) datacenter on 2026-08-14 between 08:00 and 10:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

TXL (Berlin) on 2026-08-17

著者: Cloudflare
2026年8月17日 13:00

🤖 AI Summary

CloudflareがベルリンのTXLデータセンターで2026年8月17日に実施した計画的メンテナンスについての通知を要約します。

- **日時**: 2026年8月17日 00:00 - 04:00 UTC
- **内容**: ネットワークインターフェースが一時的に unavailable になる可能性があるため、トラフィックは他の場所にリダイレクトされる可能性があります。これにより、影響を受ける地域のエンドユーザーにはわずかな遅延が生じる可能性があります。
- **通知方法**: Cloudflareダッシュボードから通知を受け取ることができます。メール、PagerDuty、ウェブハックなども利用可能(プランによって異なる)。

メンテナンスは計画通りに完了し、TXL (ベルリン)データセンターのトラフィックは予定通りにリダイレクトされました。

詳しくは以下をご覧ください: [Cloudflare Status](https://www.cloudflarestatus.com/incidents/hb9r6lzzkg8t)

Aug 17, 04:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 17, 00:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 16, 23:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 13, 09:20 UTC
Scheduled - We will be performing scheduled maintenance in TXL (Berlin) datacenter on 2026-08-17 between 00:00 and 04:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

CMH (Columbus) on 2026-08-13

著者: Cloudflare
2026年8月13日 20:01

Aug 13, 11:01 UTC
Completed - The scheduled maintenance has been completed.

Aug 13, 07:30 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 13, 07:10 UTC
Scheduled - We will be performing scheduled maintenance in CMH (Columbus) datacenter on 2026-08-13 between 07:30 and 11:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

ATL (Atlanta) on 2026-08-14

著者: Cloudflare
2026年8月14日 19:00

🤖 AI Summary

### アトラedBy: Cloudflare

**概要**
Cloudflareが2026年8月14日にアトランタデータセンタで実施した計画的なメンテナンスについての情報です。

**タイムライン**
- **05:00 UTC**: 60分後にメンテナンスを開始する予定。
- **06:00 UTC**: メンテナンスが進行中。必要に応じて更新を提供します。
- **10:00 UTC**: 指定期間内にメンテナンスが完了。

**影響**
地域内のトラフィックは再ルーティングされる可能性があり、終了ユーザーの遅延が増加する可能性があります。PNI/CNIクライアントは、データセンターのネットワークインターフェースが一時的に利用不能になることを考慮に入れる必要があります。

**通知**
Cloudflareダッシュボード経由でこれらの通知にサブスクリプションを登録し、メールや PagerDuty、ウェブフックを通じて直接通知を受け取ることができます。詳細は [ここ](https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status) を参照してください。

**影響している場所**
アトランタ, グアジュータス, アメリカ合衆国 (ATL)

---

この要約では、メンテナンスの実施日時や影響範囲など主な情報をまとめています。

Aug 14, 10:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 14, 06:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 14, 05:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 13, 06:20 UTC
Scheduled - We will be performing scheduled maintenance in ATL (Atlanta) datacenter on 2026-08-14 between 06:00 and 10:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

YUL (Montréal) on 2026-08-17

著者: Cloudflare
2026年8月17日 21:00

🤖 AI Summary

タイトル: 2026年8月17日 YUL(モントリオール)の計画的メンテナンス

概要:
Cloudflareは、2026年8月17日にモントリオール(YUL)データセンターで計画的メンテナンスを実施しました。メンテナンス期間は午前8時から午後12時までで、約4時間間隔でした。

主な内容:
- 2026年8月17日午前7時にメンテナンスが開始される予定。
- 2026年8月17日午前8時に実施を開始する予定。
- メンテナンス期間中、この場所からトラフィックがルーティングされ変わる可能性があり、影響を受けている地域のユーザーには軽微な遅延が発生する可能性がある。
- PNI / CNI顧客は、メンテナンスウィンドウ中のネットワークインターフェースの一時的な無効化に対応策を練ること。

更新通知:
Cloudflareのダッシュボードから通知を受け取ることができます。メール、PagerDuty、Webhook(プランに応じて)で直接更新を受け取ることができます。詳細は https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status を参照してください。

結果:
- 2026年8月17日午後12時にメンテナンスが完了しました。

影響した場所:
モントリオール、ケンブリッジ省、カナダ - (YUL)

Aug 17, 12:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 17, 08:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 17, 07:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 12, 23:50 UTC
Scheduled - We will be performing scheduled maintenance in YUL (Montréal) datacenter on 2026-08-17 between 08:00 and 12:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

DAC (Dhaka) on 2026-08-17

著者: Cloudflare
2026年8月18日 07:00

🤖 AI Summary

2026年8月17日、ダッカ(DAC)データセンタで計画的なメンテナンスが実施されました。以下はその概要です:

- 計画時間:UTC午後5:00 から 10:00
- メンテナンス中:午後5:01
- 完了:午後10:00

メンテナンス実施前に、Cloudflareは地域のトラフィックが他の場所にルーティングされる可能性と、ネットワークインターフェースが一時的に利用不可になることを警告していました。PNI / CNIクライアントは、維持管理期間中にこの影響を考慮に入れるべきです。

なお、Cloudflareはダッシュボードから通知を受け取る機能を提供しており、メールやPagerDuty、ウェブフックを通じてリアルタイムの更新が受け取れます。詳細は公式ドキュメントをご確認ください。

Aug 17, 22:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 17, 17:01 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 17, 16:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 12, 23:10 UTC
Scheduled - We will be performing scheduled maintenance in DAC (Dhaka) datacenter on 2026-08-17 between 17:00 and 22:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

Email Security delivery impacted by Spamhaus listing

著者: Cloudflare
2026年8月13日 02:23

🤖 AI Summary

Cloudflareの記事「Email Security delivery impacted by Spamhaus listing」を日本語で要約します。

8月12日、Spamhausによってリスト化されたIPアドレスによるメールセキュリティ配信障害が発生しました。以下に主な内容をまとめます:

- 8月12日16時48分:Spamhausでリスト化されていた全てのIPがクリーンになったことを確認。ダウンストリームシステムへの変更の拡散状況をモニタリング中。
- 8月12日17時23分:障害は解決しました。

主要な影響:
- O365を使用する顧客は、必要事項が完了していない場合にのみ影響を受ける可能性がある。設定を確認し、全送出IPを含めることを推奨。
- 134.195.26.0/23ブロックのIPからのメールが拒否されるという問題を発見。このIPブロックはすべてのダウンストリームシステムで許可すべきであり、Cloudflare Email Securityがメールの元発信者とみなされないようにするため、Spamhausフィルタリングはダウンストリームシステムで無効化することを推奨。

障害期間:8月12日15時04分〜17時23分

Cloudflare: https://www.cloudflarestatus.com/incidents/fdyjr0t87mrb

Aug 12, 17:23 UTC
Resolved - This incident is now resolved.

Aug 12, 16:48 UTC
Monitoring - All IPs previously listed by Spamhaus are now clean. Monitoring the propagation of that change to downstream systems.

Aug 12, 16:30 UTC
Investigating - We are continuing to investigate this issue. Customers using O365 will be impacted only if they have not completed the required setup. Please check your setup and ensure the connector includes all egress IPs: https://developers.cloudflare.com/cloudflare-one/email-security/setup/pre-delivery-deployment/prerequisites/m365-email-security-mx/#2-configure-enhanced-filtering

Aug 12, 15:07 UTC
Investigating - We are continuing to investigate this issue.

Aug 12, 15:04 UTC
Investigating - We are currently investigating an issue where customers that use Spamhaus for additional filtering of email downstream from the Cloudflare Email Security service are rejecting emails from IPs in the 134.195.26.0/23 block. This IP block should be allowed for all customer downstream systems to avoid treating the Email Security service as an originator of mail. We recommend all Cloudflare Email Security customers disable Spamhaus filtering in downstream systems.

IST (İstanbul) on 2026-08-13

著者: Cloudflare
2026年8月14日 06:00

Aug 13, 21:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 13, 03:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 13, 02:01 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 12, 10:40 UTC
Scheduled - We will be performing scheduled maintenance in IST (İstanbul) datacenter on 2026-08-13 between 03:00 and 21:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

ORD (Chicago) on 2026-08-13

著者: Cloudflare
2026年8月13日 20:00

Aug 13, 11:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 13, 06:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 13, 05:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 12, 07:00 UTC
Scheduled - We will be performing scheduled maintenance in ORD (Chicago) datacenter on 2026-08-13 between 06:00 and 11:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

ORD (Chicago) on 2026-08-12

著者: Cloudflare
2026年8月12日 20:00

🤖 AI Summary

Chicagoデータセンター(ORD)での計画的メンテナンスに関するCloudflareの通知を要約します。

- タイムライン:
- 2026年8月12日03:40UTC:メンテナンスが8月12日に開始されることが通知されました。
- 2026年8月12日06:00UTC:メンテナンス開始まで60分です。
- 2026年8月12日07:00UTC:メンテナンスは進行中で、必要に応じて更新が提供されます。
- 2026年8月12日11:00UTC:メンテナンスが完了しました。

- 主な内容:
1. チicagoデータセンターでの計画的メンテナンスは07:00〜11:00UTCで行われます。
2. この期間中、トラフィックは他の場所に再ルーティングされる可能性があり、ユーザーの遅延が増えるかもしれません。
3. PNI / CNIクライアントは、ネットワークインターフェースが一時的に利用できない場合に対応する必要があります。
4. メンテナンス終了後、Cloudflareデスクトップから通知を受け取ることや、メール、PagerDuty、ウェブフックを介して直接更新を受け取ることができます。

以上の情報を元に、Cloudflareからのこの通知の要点を把握できます。

Aug 12, 11:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 12, 07:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 12, 06:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 12, 03:40 UTC
Scheduled - We will be performing scheduled maintenance in ORD (Chicago) datacenter on 2026-08-12 between 07:00 and 11:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

HEL (Helsinki) on 2026-08-12

著者: Cloudflare
2026年8月13日 13:00

Aug 13, 04:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 12, 23:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 12, 22:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 12, 03:20 UTC
Scheduled - We will be performing scheduled maintenance in HEL (Helsinki) datacenter between 2026-08-12 23:00 and 2026-08-13 04:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

PTY (Panama City) on 2026-08-12

著者: Cloudflare
2026年8月13日 07:15

Aug 12, 22:15 UTC
Completed - The scheduled maintenance has been completed.

Aug 12, 21:15 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 12, 20:15 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 12, 00:10 UTC
Scheduled - We will be performing scheduled maintenance in PTY (Panama City) datacenter on 2026-08-12 between 21:15 and 22:15 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

KUL (Kuala Lumpur) on 2026-08-14

著者: Cloudflare
2026年8月15日 07:00

🤖 AI Summary

タイトル: KUL(クアラルンプール)2026年8月14日のメンテナンス

Cloudflareは、2026年8月14日にクアラルンプールのデータセンターで計画的なメンテナンスを行うと通知しました。開始時間はUTC 18:00で終了予定はUTC 22:00です。

主要な点:
- 機構:Cloudflare
- 地点:KUL(クアラルンプール)
- 開始時間:2026年8月14日 UTC 18:00
- 終了予定時:2026年8月14日 UTC 22:00

メンテナンス中、当該地域のユーザーは軽微な遅延が生じる可能性があります。Cloudflareデバイスを使用するPNI/CNI顧客は、ネットワークインターフェースが一時的に利用不能となることを考慮に入れる必要があります。

通知設定はCloudflareダッシュボードから行えます。メール、PagerDuty、ウェブフック(プランにより異なる)など、これらの更新を受け取ることができます。
https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status

影響範囲:クアラルンプール、マレーシア

この情報はCloudflare公式ステータスページより引用しています。

Aug 14, 22:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 14, 18:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 14, 17:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 11, 17:20 UTC
Scheduled - We will be performing scheduled maintenance in KUL (Kuala Lumpur) datacenter on 2026-08-14 between 18:00 and 22:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

MAD (Madrid) on 2026-08-18

著者: Cloudflare
2026年8月18日 13:00

🤖 AI Summary

Cloudflareは2026年8月18日にマドリッドデータセンターで計画的なメンテナンスを行い、その内容を以下の通り要約します。

- 期間:UTC時間帯01:00から04:00まで
- 影響区域:スペインのマドリッド
- 主な影響:ネットワークインターフェースの一時不利用により、軽微な遅延が予想される

Cloudflareは事前に以下の情報を提供しました:
- タイムライン:UTC時間12:00からメンテナンス開始まで残り60分
- メンテナンス終了:UTC時間4:00
- 問い合わせ:Cloudflareの通知サービスを使用して直接通知を受け取れます。

詳細な情報は、[Cloudflareステータス](https://www.cloudflarestatus.com/incidents/smgq6n0g2w5k)を参照してください。

Aug 18, 04:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 18, 01:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 18, 00:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 11, 14:30 UTC
Scheduled - We will be performing scheduled maintenance in MAD (Madrid) datacenter on 2026-08-18 between 01:00 and 04:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

Cloudflare Analytics Delays

著者: Cloudflare
2026年8月12日 01:26

Aug 11, 16:26 UTC
Resolved - This incident has been resolved.

Aug 11, 15:12 UTC
Monitoring - A fix has been implemented and we are monitoring the results.

Aug 11, 14:22 UTC
Investigating - Reporting and analytics for the HttpRequestsAdaptiveGroups node is delayed. This will result in failures on dashboard for analytics. We are working to mitigate this problem. More updates to follow shortly.

EWR (Newark) on 2026-09-02

2026年9月2日 18:00

Sep 2, 09:00 UTC
Completed - The scheduled maintenance has been completed.

Sep 2, 05:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Sep 2, 04:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Jul 21, 15:30 UTC
Scheduled - We will be performing scheduled maintenance in EWR (Newark) datacenter on 2026-09-02 between 05:00 and 09:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

EWR (Newark) on 2026-09-01

著者: Cloudflare
2026年9月1日 18:00

Sep 1, 09:00 UTC
Completed - The scheduled maintenance has been completed.

Sep 1, 05:02 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Sep 1, 04:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Jul 21, 14:00 UTC
Scheduled - We will be performing scheduled maintenance in EWR (Newark) datacenter on 2026-09-01 between 05:00 and 09:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

Zone, Account and Identity Management Maintenance

著者: Cloudflare
2026年8月29日 19:48

Aug 29, 10:48 UTC
Completed - The scheduled maintenance has been completed.

Aug 29, 08:55 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 29, 07:55 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 22, 09:41 UTC
Scheduled - We will be undergoing scheduled maintenance during this time.

Aug 22, 09:39 UTC
Scheduled - We will be undergoing scheduled maintenance during this time.

Aug 5, 08:57 UTC
Scheduled - On Saturday, August 29, 2026 from 09:00 to 11:00 UTC, Cloudflare will perform a planned upgrade to systems supporting zone management, account configuration, and identity services. During two back-to-back windows, configuration write operations to the following services may be delayed or temporarily fail: 09:00–10:00 UTC — Zone & account configuration: Zone management, Zone settings, SSL/TLS certificate management, Page Rules and Firewall Rules, Load Balancing configuration 10:00–11:00 UTC — Identity & access management (IAM): User, membership, and role management, API token and credential management, OAuth, SSO, and SCIM provisioning Existing configurations and access will remain active and unaffected. The Cloudflare network will continue to proxy requests and Cloudflare nameservers will continue to respond to DNS queries. Service impact is expected to last up to 3 minutes within each window. We will post updates on this page before, during, and after each window.

SSL/TLS Certificate Management Maintenance

著者: Cloudflare
2026年8月24日 22:00

🤖 AI Summary

Cloudflareが実施するSSL/TLS証明書管理のメンテナンスについて、以下の要点を含む概要を日本語でまとめます。

タイトル:SSL/TLS証明書管理メンテナンス

発行元:Cloudflare

メンテナンス期間:
- 2026年8月4日07:31UTCから計画的メンテナンスが開始予定
- 2026年8月24日11:00UTCに開始予定(60分後に)
- 2026年8月24日13:00UTCまで

影響範囲:
- 新しい証明書の注文と更新が遅れるか失敗する可能性
- ダッシュボードやAPI経由でのSSL/TLS設定変更に反応時間が長くなるか一時的に失敗する可能性
- Universal SSL、Advanced Certificate Manager (ACM)、Total TLS、カスタム証明書、SaaS用のSSL(カスタムホスト名)、Origin CA証明書等の操作が影響を受ける

注意点:
- Cloudflareのエッジは正常にトラフィックをプロキシ化し、TLS終結を行う
- 現存する証明書は活動的で影響を受けない

メンテナンス終了:2026年8月24日13:00UTC

Aug 24, 13:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 24, 12:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 24, 11:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 4, 07:31 UTC
Scheduled - Cloudflare will be performing scheduled maintenance on the databases that store SSL/TLS certificates, certificate orders, and related configuration. During this window, new certificate orders and renewals may be delayed or fail, and changes to SSL/TLS settings via the dashboard or API may experience elevated response times or temporary failures. This includes operations for Universal SSL, Advanced Certificate Manager (ACM), Total TLS, Custom Certificates, SSL for SaaS (custom hostnames), and Origin CA certificates. Cloudflare's edge will continue to proxy traffic and terminate TLS as normal, existing certificates will remain active and unaffected. Only new certificate operations and configuration changes are affected.

HKG (Hong Kong) on 2026-08-19

著者: Cloudflare
2026年8月20日 21:00

🤖 AI Summary

香港(HKG)のCloudflareメンテナンスについて、以下の要点をまとめます:

- 機構:Cloudflare
- 日時:2026年8月19日17:00〜2026年8月20日12:00 UTC(予定)
- 主な内容:
- メンテナンスは予定通り完了しました。
- 期間中、ネットワークインターフェースが一時的に unavailable になる可能性があるため、PNI / CNI クライアントは他の場所への接続を考慮するべきです。
- 影響を受けた地域:香港
- 設定により通知を受け取ることができます(ダッシュボード、メール、PagerDuty、ウェブHooks)。

詳細な情報や最新の更新については、Cloudflareのステータスページをご覧ください。

Aug 20, 12:00 UTC
Completed - The scheduled maintenance has been completed.

Aug 19, 17:00 UTC
In Progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Aug 19, 16:00 UTC
Scheduled - Maintenance will begin as scheduled in 60 minutes.

Aug 4, 03:30 UTC
Scheduled - We will be performing scheduled maintenance in HKG (Hong Kong) datacenter between 2026-08-19 17:00 and 2026-08-20 12:00 UTC. Traffic might be re-routed from this location, hence there is a possibility of a slight increase in latency during this maintenance window for end-users in the affected region. For PNI / CNI customers connecting with us in this location, please make sure you are expecting this traffic to fail over elsewhere during this maintenance window as network interfaces in this datacentre may become temporarily unavailable. You can now subscribe to these notifications via Cloudflare dashboard and receive these updates directly via email, PagerDuty and webhooks (based on your plan): https://developers.cloudflare.com/notifications/notification-available/#cloudflare-status.

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