THIS IS A SCHEDULED EVENT Oct <var data-var='date'>17</var>, <var data-var='time'>09:00</var> - <var data-var='time'>13:00</var> EDT Sep <var data-var='date'> 1</var>, <var data-var='time'>12:22</var> EDT Scheduled - We will be performing a planned database maintenance. What to expect: • DNS resolution and threat protection will NOT be affected during this maintenance.

Scheduled Maintenance: Database maintenance

Sep <var data-var='date'>28</var>, <var data-var='time'>11:45</var> EDT Resolved - This incident has been resolved. Sep <var data-var='date'>28</var>, <var data-var='time'>11:29</var> EDT Monitoring - A fix has been implemented and we are monitoring the results. Sep <var data-var='date'>28</var>, <var data-var='time'>10:35</var> EDT Update - We are continuing to work on a fix for this issue. Sep <var data-var='date'>28</var>, <var data-var='time'>08:51</var> EDT Identified - Our engineering team has identified an issue that is causing the dashboard to not reflect changes correctly within the UI and is currently working to implement a fix to remediate the problem. Changes are active and working as expected. There's currently a delay of up to 30 minutes before they show in the dashboard, so what you're seeing may not reflect the latest updates yet. We will provide updated status as soon as possible once a fix has been implemented.

DNSFilter Dashboard Performance Issue - Identified

Sep <var data-var='date'>26</var>, <var data-var='time'>13:00</var> EDT Completed - The scheduled maintenance has been completed. Sep <var data-var='date'>26</var>, <var data-var='time'>09:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Sep <var data-var='date'> 1</var>, <var data-var='time'>12:11</var> EDT Scheduled - We will be performing a planned database maintenance. What to expect: • DNS resolution and threat protection will NOT be affected during this maintenance. • The dashboard and block pages may be briefly unavailable or slower to load during their respective migration windows. Thank you for your patience.

Sep <var data-var='date'>22</var>, <var data-var='time'>10:26</var> EDT Resolved - Our connectivity is provided through an Internet Exchange (IX), essentially a shared hub that connects us with many other networks. If our own connection to the IX had gone down, it would have affected all customers equally, but that wasn't the case here. Based on what we're seeing, it's possible that a subset of networks sharing the same infrastructure at the IX experienced a localized issue, which would explain why only some customers noticed a problem while others didn't. We want to be transparent that this is our best working theory rather than a confirmed root cause, as we don't have full visibility into that specific piece of infrastructure. We also checked with our upstream provider, and they've confirmed that all systems on their end showed as healthy throughout this period. We're continuing to monitor closely, and we'll update you if we learn anything further. Please let us know if you're still experiencing any issues. Sep <var data-var='date'>22</var>, <var data-var='time'>08:26</var> EDT Monitoring - Resolution is back in and working; engineering is monitoring. Sep <var data-var='date'>22</var>, <var data-var='time'>08:14</var> EDT Investigating - Our engineering team is currently investigating an issue that is causing DNS resolution to be Intermittent across the UK region and is currently working with our partners to resolve the situation.

DNS Resolution is Intermittent - Investigating

Sep <var data-var='date'>19</var>, <var data-var='time'>10:30</var> EDT Completed - The scheduled maintenance has been completed. Sep <var data-var='date'>19</var>, <var data-var='time'>06:30</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Sep <var data-var='date'> 1</var>, <var data-var='time'>09:27</var> EDT Scheduled - We will be performing a planned database maintenance. What to expect: • DNS resolution and threat protection will NOT be affected during this maintenance. • The dashboard and block pages may be briefly unavailable or slower to load during their respective migration windows. Thank you for your patience.

Scheduled Maintenance: Database migration

Sep <var data-var='date'>17</var>, <var data-var='time'>17:00</var> EDT Resolved - We’ve identified the root cause of the latency issues affecting certain customers in the West Coast region and have implemented a fix. Traffic has returned to stable levels, and the service is operating normally. We will continue to closely monitor the region to ensure continued stability. If you continue to experience issues, please reach out to our Support team for assistance Sep <var data-var='date'>17</var>, <var data-var='time'>16:47</var> EDT Monitoring - A fix has been implemented and we are monitoring the results. Sep <var data-var='date'>17</var>, <var data-var='time'>16:35</var> EDT Identified - Our team has identified the issue that has caused DNS resolution latency and timeouts. Engineering is actively working to implement a fix to remediate and restore services. Updated status will be provided as soon as possible. You can also keep up with updates by reviewing our status page here: https://status.dnsfilter.com/

DNS Resolution is (Down / Intermittent) - Resolved

Sep <var data-var='date'>14</var>, <var data-var='time'>13:09</var> EDT Resolved - This incident has been resolved. Sep <var data-var='date'>14</var>, <var data-var='time'>12:48</var> EDT Monitoring - A fix has been implemented and we are monitoring the results Sep <var data-var='date'>14</var>, <var data-var='time'>12:22</var> EDT Identified - We have identified the cause of an issue affecting Reporting. Customers may be unable to load the DNS Query Log or see delays when viewing report data in the dashboard. Our team is working towards a full resolution. If you have any questions in the meantime, please contact our Support Team. We will be providing additional updates shortly.

DNSFilter Reporting - Resolved

Jun <var data-var='date'> 3</var>, <var data-var='time'>02:30</var> EDT Resolved - On June 3, 2026 between 6:47:00 and 6:53:00 UTC, some historical query data (older than ~2 weeks) was temporarily unavailable. Scheduled and queried reports that ran during this window may have returned zero or partial results. DNS filtering and traffic ingestion were not affected at any point. The issue has been resolved. If you have any questions please reach out to our Support team.

Zorus - Data Availability Issue

May <var data-var='date'>28</var>, <var data-var='time'>12:47</var> EDT Resolved - The issue causing certain domains to be incorrectly classified as malicious has been fully resolved. Our team implemented a rollback and completed monitoring to confirm classification behavior has returned to normal operation. This issue did not impact DNS resolution or overall DNSFilter service availability. We sincerely apologize for the disruption and appreciate your patience while we worked to quickly identify and resolve the issue. If you continue to experience any related problems, please reach out to our Support team for further assistance. May <var data-var='date'>28</var>, <var data-var='time'>09:58</var> EDT Monitoring - We have implemented a rollback and are currently monitoring the environment to ensure domain classifications continue operating normally. This issue did not impact DNS resolution or overall DNSFilter service availability. We will continue to monitor closely and provide any additional updates if necessary. If you continue to experience any issues, please submit a support ticket. May <var data-var='date'>28</var>, <var data-var='time'>09:46</var> EDT Identified - We are aware of an issue causing certain valid domains to be incorrectly classified as malicious. Our team has identified the cause and is actively implementing a rollback to restore normal classification behavior as quickly as possible. This issue does not impact DNSFilter DNS resolution or overall service availability. We will continue to provide updates as progress is made and expect to share another update shortly.

DNSFilter - Investigating Incorrect Domain Classification

May <var data-var='date'>17</var>, <var data-var='time'>03:30</var> EDT Completed - The scheduled maintenance has been completed. May <var data-var='date'>17</var>, <var data-var='time'>03:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Apr <var data-var='date'>27</var>, <var data-var='time'>09:26</var> EDT Scheduled - Dear Valued Customers, As part of our ongoing commitment to improving our services, we will be performing an important infrastructure upgrade. This upgrade involves transitioning our database technology to enhance the performance and reliability of our systems. What You Need to Know: Date and Time of Upgrade: Start: May 17, 2026, at 08:00 UTC End: May 17, 2026, at 08:30 UTC Estimated Downtime: The DNSFilter Dashboard and APIs will be unavailable for about 30 minutes. ALL operations performed through the Dashboard and APIs will not be accessible, including reporting and management. Existing filtering policies will remain active during maintenance. Why is This Upgrade Necessary? This is the initial phase of a multi-step enhancement aimed at achieving robust high availability and eliminating scenarios necessitating downtime. Although there will be temporary access limitations, our filtering capabilities will continue uninterrupted based on existing policies. Next Steps: Please refer to our DNSFilter status page for current status and information: https://status.dnsfilter.com/ Need Help? If you have any questions or concerns, please do not hesitate to reach out to our support team. Thank you for your understanding and support as we work to enhance our infrastructure for a better experience. We appreciate your business and are committed to serving you. Best regards, DNSFilter Support

DNSFilter API Scheduled Maintenance

May <var data-var='date'>11</var>, <var data-var='time'>11:10</var> EDT Resolved - The issue impacting the Home Dashboard and Insights pages, as well as the “Failed to Load QPS” error message on the Site Deployment page, has been resolved. Functionality has returned to normal operation. If you continue to experience any issues, please reach out to our Support team for further assistance. May <var data-var='date'>11</var>, <var data-var='time'>10:37</var> EDT Identified - Customers may experience issues with the Home Dashboard and Insights pages not displaying data. Additionally, the Site Deployment page may show a “Failed to Load QPS” error message. We have identified the root cause of the issue and are actively working on implementing a fix. DNS Resolution and Filtering are NOT affected.

Investigating Dashboard & Insights Data Display Issues

May <var data-var='date'> 9</var>, <var data-var='time'>07:36</var> EDT Resolved - This incident has been resolved. Our cloud partner has resolved the issue impacting reporting performance. Functionality has now returned to normal operation. May <var data-var='date'> 8</var>, <var data-var='time'>12:11</var> EDT Monitoring - We are continuing to monitor this issue. May <var data-var='date'> 8</var>, <var data-var='time'>08:54</var> EDT Identified - Our engineering team has identified an issue with our cloud partner that may cause the Reporting to have performance issues. Our Anycast network is unaffected as of this time. We will provide an updated status as soon as possible once the partner has resolved this issue.

May <var data-var='date'> 2</var>, <var data-var='time'>08:00</var> EDT Completed - The scheduled maintenance has been completed. May <var data-var='date'> 2</var>, <var data-var='time'>07:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Apr <var data-var='date'>15</var>, <var data-var='time'>14:05</var> EDT Scheduled - We will be performing a scheduled maintenance of our Webshrinker API on May 2, 2026. Please expect a potential service interruption of up to five minutes. While we anticipate the actual downtime to be significantly shorter, API requests may intermittently fail during this window. This update does not affect Webshrinker Offline DB (OCDB) services.

Webshrinker API Update

Apr <var data-var='date'>29</var>, <var data-var='time'>22:00</var> EDT Completed - The scheduled maintenance has been completed. Apr <var data-var='date'>29</var>, <var data-var='time'>21:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Apr <var data-var='date'>29</var>, <var data-var='time'>12:24</var> EDT Scheduled - We will be performing scheduled maintenance today to update our infrastructure. This maintenance will occur in stages across different regions. Impact & Expectations: Portal & Policy Lookup: During the maintenance window for your region, portal functionality and the ability for policy-servers to perform live lookups will be temporarily affected. Endpoint Protection: Agent caching will remain fully functional. Your protected endpoints will continue to enforce existing policies as expected. Monitoring: Our team will be closely monitoring agent connections to policy-servers throughout the duration of the maintenance. Regional Schedule Melbourne, Australia (ap-southeast-4) 1:00 PM EST | 18:00 UTC | 3:00 AM Local (Next Day) Cape Town, South Africa (af-south-1) 1:00 PM EST | 18:00 UTC | 7:00 PM Local Frankfurt, Germany (eu-central-1) 3:00 PM EST | 20:00 UTC | 9:00 PM Local São Paulo, Brazil (sa-east-1) 9:00 PM EST | 02:00 UTC | 10:00 PM Local

Zorus: Security Maintenance April 29, 2026

Apr <var data-var='date'>27</var>, <var data-var='time'>10:28</var> EDT Resolved - We’ve resolved the issue that was causing DNS Query Log data to not appear in the dashboard. Our engineering team identified the root cause and implemented a fix, and data visibility has now been restored. Apr <var data-var='date'>27</var>, <var data-var='time'>08:47</var> EDT Monitoring - A fix has been implemented and we are monitoring the results. Apr <var data-var='date'>27</var>, <var data-var='time'>07:09</var> EDT Identified - Our engineering team has identified an issue where the dashboard may not show data in the DNS Query Log and is currently working to implement a fix to remediate the problem. We will provide updated status as soon as possible once a fix has been implemented.

Mar <var data-var='date'>30</var>, <var data-var='time'>16:13</var> EDT Resolved - This incident is now resolved. We have now shifted traffic back to the NYC region. This issue was identified to be caused by a routing problem at an upstream Internet Exchange provider, which impacted connectivity and cascaded to our services. To minimize customer impact, we temporarily rerouted traffic to our Washington, DC region. Once the issue was confirmed to be resolved by our upstream partner, traffic was safely restored to the NYC region. Mar <var data-var='date'>30</var>, <var data-var='time'>13:26</var> EDT Monitoring - Traffic redirection has been completed, and we’ve shifted traffic to the closest available region. Performance should now be returning to normal, if it hasn’t stabilized already. We will continue to monitor closely to ensure stability. Mar <var data-var='date'>30</var>, <var data-var='time'>13:02</var> EDT Identified - Our Engineering team has identified an issue that has caused DNS resolution failure observed in our NYC region and is actively working to implement a fix to remediate and restore services. Updated status will be provided as soon as possible.

Mar <var data-var='date'>16</var>, <var data-var='time'>18:30</var> EDT Completed - The scheduled maintenance has been completed. Mar <var data-var='date'>16</var>, <var data-var='time'>18:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Mar <var data-var='date'> 4</var>, <var data-var='time'>10:44</var> EST Update - We will be undergoing scheduled maintenance during this time. Mar <var data-var='date'> 3</var>, <var data-var='time'>16:34</var> EST Scheduled - We will be performing scheduled maintenance on March 16th from 6:00 PM to 6:30 PM EST. During this maintenance window, the following features may be temporarily unavailable: Previewing Custom Blocked Pages Display of Logo Thumbnails DNS resolution and filtering services will not be impacted. All core DNS functionality will continue to operate normally. We appreciate your patience as we complete this maintenance. If you have any questions, please contact our support team.

Scheduled Maintenance – March 16th, 6:00–6:30 PM EST

Mar <var data-var='date'>11</var>, <var data-var='time'>18:30</var> EDT Completed - The scheduled maintenance has been completed. Mar <var data-var='date'>11</var>, <var data-var='time'>18:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Feb <var data-var='date'>24</var>, <var data-var='time'>12:35</var> EST Scheduled - Impact: New Roaming Client Downloads & Updates Temporarily Unavailable. During a scheduled maintenance window, Roaming Client downloads and updates will be temporarily unavailable. Customer Impact: The only impact during this time will be for: Downloads of new Roaming Clients. Updates to existing Roaming Client. No Service Disruption: All currently deployed Roaming Clients will continue functioning normally. This maintenance will not impact active DNS filtering or existing Roaming Client operations. We appreciate your understanding as we complete this maintenance

Scheduled Maintenance Notice for RC Downloads & Updates

Feb <var data-var='date'>28</var>, <var data-var='time'>05:30</var> EST Completed - The scheduled maintenance has been completed. Feb <var data-var='date'>28</var>, <var data-var='time'>04:00</var> EST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Feb <var data-var='date'> 3</var>, <var data-var='time'>10:12</var> EST Scheduled - As part of our ongoing commitment to improving our services, we will be performing an important infrastructure upgrade. This upgrade involves transitioning our database technology to enhance the performance and reliability of our systems. What You Need to Know: Date and Time of Upgrade: Start: February 28th, 2026, at 0900 UTC End: February 28th, 2026, at 10:30 UTC Estimated Downtime: The DNSFilter Dashboard and APIs will be unavailable for about 30 minutes. ALL operations performed through the Dashboard and APIs will not be accessible, including reporting and management. Existing filtering policies will remain active during maintenance. Why is This Upgrade Necessary? This is an upgrade to our backend systems designed to improve performance, reliability, and long-term scalability of the platform. Next Steps: Please refer to our DNSFilter status page for current status and information: https://status.dnsfilter.com/ Need Help? If you have any questions or concerns, please do not hesitate to reach out to our support team. Thank you for your understanding and support as we work to enhance our infrastructure for a better experience. We appreciate your business and are committed to serving you.

DNSFilter Planned Infrastructure Maintenance

Jan <var data-var='date'>17</var>, <var data-var='time'>06:00</var> EST Completed - The scheduled maintenance has been completed. Jan <var data-var='date'>17</var>, <var data-var='time'>04:00</var> EST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Dec <var data-var='date'>11</var>, <var data-var='time'>13:29</var> EST Scheduled - A scheduled database maintenance is planned for January 17 from 9:00–11:00 AM UTC to help ensure continued platform stability, performance, and security. During this window, you may experience intermittent delays or timeouts in both our Dashboard and API services. DNS resolution will not be impacted. Thank you for your understanding. Please reach out to DNSFilter Support with any questions.

Scheduled Database Maintenance: January 17, 2026

Dec <var data-var='date'> 5</var>, <var data-var='time'>04:37</var> EST Resolved - The cloud partner has resolved the issue on their end. Our engineers have confirmed that both Anycast and DNSFilter APIs remained fully operational throughout the event. Dec <var data-var='date'> 5</var>, <var data-var='time'>04:15</var> EST Identified - Our engineering team has identified an issue with our cloud partner that may cause domains to have performance issues. Our Anycast network is unaffected as of this time. We will provide an updated status as soon as possible once the partner has resolved this issue.

Nov <var data-var='date'>25</var>, <var data-var='time'>15:00</var> EST Resolved - An issue was identified affecting our DoH service that may have impacted customers in the London region. This did NOT affect DNS1/DNS2 UDP/TCP/TLS/DoT services. We identified the fault on Tuesday the 25th and resolved the it by 20:00 UTC by updating all affected servers. In addition, we have improved our monitoring and automation by adding a new failsafe to avoid this from happening again in the future.

Chromebook Roaming Client DoH Service

Nov <var data-var='date'>18</var>, <var data-var='time'>10:49</var> EST Resolved - This incident has been resolved. Nov <var data-var='date'>18</var>, <var data-var='time'>07:26</var> EST Monitoring - We are currently investigating an issue affecting some users access to the DNSFilter dashboard. This does not impact DNS resolution. We are closely monitoring the situation and will provide updates as more information becomes available. Nov <var data-var='date'>18</var>, <var data-var='time'>07:26</var> EST Update - We are continuing to investigate this issue. Nov <var data-var='date'>18</var>, <var data-var='time'>07:20</var> EST Investigating - Our engineering team is currently investigating an issue that is causing DNS resolution to be Intermittent and is currently working with our partners to implement a fix to resolve this problem. Updated status will be provided as soon as possible.

Dashboard Login Access Issues — Monitoring

Oct <var data-var='date'>20</var>, <var data-var='time'>08:22</var> EDT Resolved - The cloud partner has resolved the issue on their end. Our engineers have confirmed that both Anycast and DNSFilter APIs remained fully operational throughout the event. No customer-facing impact or service degradation was observed. Oct <var data-var='date'>20</var>, <var data-var='time'>05:57</var> EDT Identified - Our engineering team has identified an issue with our cloud partner that may cause the dashboard and API to have performance issues. Our Anycast network is unaffected as of this time. We will provide an updated status as soon as possible once the partner has resolved this issue.

Oct <var data-var='date'>14</var>, <var data-var='time'>18:30</var> EDT Completed - The scheduled maintenance has been completed. Oct <var data-var='date'>14</var>, <var data-var='time'>18:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct <var data-var='date'>14</var>, <var data-var='time'>11:29</var> EDT Scheduled - Scheduled routine maintenance is underway for the Zorus Portal and Reporting systems. No customer impact is anticipated during this period.

Is DNSFilter down?

DNSFilter status is UP

Lastest published events

DNSFilter Dashboard Performance Issue - Identified

Scheduled Maintenance: Database maintenance

DNS Resolution is Intermittent - Investigating

DNSFilter Services, Components and Regions

Recent DNSFilter events

Scheduled Maintenance: Database maintenance

DNSFilter Dashboard Performance Issue - Identified

Scheduled Maintenance: Database maintenance

DNS Resolution is Intermittent - Investigating

Scheduled Maintenance: Database migration

DNS Resolution is (Down / Intermittent) - Resolved