W3C status updated a few minutes ago

W3C Status. Is W3C Down?

Check if W3C is down, official outages, user-reported issues, and outages map.

Is W3C down right now?

W3C is working normally

IsDown checked W3C status on at , and appears to be operational. We've received 0 user reports in the past 24 hours. IsDown collects in real-time W3C status data from official sources and user reports.

W3C not working for you?

W3C service health. Issues reported in the last 24 hours

Check the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe.

Working Normally
Possible Incident
Confirmed Outage
W3C Outage Map

View W3C Reports Map

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User reports for W3C

See what users are saying about W3C issues that impacted them and how they are affected by the outage.

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W3C outages and downtime history

IsDown has tracked 24 incidents since started monitoring W3C status in January 2025. We collect data from 5350+ services, and normalize the data to give you a clear picture of the impact of the outage. It will show official W3C outages and also issues that we're started by a spike in crowdsource reports.

Major 36 minutes
503 on www.w3.org
Dec 05, 2025 at 09:07 AM
Minor about 2 hours
Several services unavailable
Sep 06, 2025 at 01:35 PM
Minor Ongoing
Mailing list server temporarily unavailable
Dec 20, 2024 at 06:04 PM
Minor Ongoing
spec-generator is timing out
Dec 05, 2024 at 02:19 PM
Minor Ongoing
IRC server crash
Oct 14, 2024 at 04:30 PM
Minor Ongoing
Dropping TheMatrix -> W3C IRC bridge.
Apr 09, 2024 at 02:26 PM
Minor Ongoing
Timeouts for some resources on www.w3.org
Oct 11, 2023 at 03:37 PM
Minor Ongoing
Slowness of W3C website
Oct 08, 2023 at 08:59 PM
Major Ongoing
Mailing list archives outage
Aug 17, 2023 at 12:49 PM
Major Ongoing
Network issues impacting W3C website
Mar 21, 2023 at 03:12 PM
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W3C components or services current status

Component Status
API OK
Backend storage service OK
Chapters OK
Email & Mailing Lists OK
Frontend services (Proxy, Firewall, Cache, CDN) OK
GitHub OK
IRC OK
TR Publication OK
User & Group Management OK
Validation Services OK
Website OK

How to monitor the status of W3C and all your dependencies?

IsDown is a status page aggregator that monitors if W3C and all your dependencies are experiencing issues. We combine the status of all the services you dependent and provide a clear view of all your vendors health in one place. We not only monitor official information but also crowdsourced reports. That means that even when W3C, per example, doesn't report an outage, you will still be notified if other users are experiencing issues.

How IsDown monitors W3C?

IsDown monitors W3C health in almost real-time

Every few minutes we go to the status page of W3C (and 5,350+ other services) and check if they are experiencing issues. We collect the status and outage information of W3C's 16 components. Also, we not only monitor official sources but also user reports. Sometimes or a lot of times vendors take some time to report an incident, so by monitoring user reports we're able to alert you early.

The moment an issue is detected in W3C, IsDown sends an alert and updates your status page

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from W3C and other services.

One status page to monitor all your external dependencies

What you get when monitoring W3C with IsDown

Track W3C incidents and downtimes by severity

IsDown checks W3C official status page for major/minor outages or downtimes. A major outage is when W3C experiences a critical issue that severely affects one or more services/regions. A minor incident is when W3C experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. The moment we detect a W3C outage, we send you an alert and update your dashboard and status page.

Get alerted as soon as users reports problems with W3C

W3C and other vendors don't always report outages on time. IsDown collects user reports to provide early detection of outages. This way, even without an official status update, you can stay ahead of possible problems.

All the details of W3C outages and downtimes

IsDown collects all information from the outages published in W3C status page to provide the context of the outage. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.

Prepare for upcoming W3C maintenance events

W3C publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.

Only get alerted on the W3C outages that impact your business

IsDown monitors W3C and all their 16 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.

One platform to monitor all your external dependencies

Our tool was build to be the best way to monitor all your external dependencies in one place. IsDown not only will help you monitor W3C but also 5,350 other services. Your team and customers will have a clear view of all your dependencies and their status, making it easier to identify and resolve issues.

Monitor W3C and all your external dependencies in real-time

Add all your dependencies to your dashboard. IsDown will monitor them in real-time and send you alerts when there is an issue. You can also create a status page for a bird-eye view and share it with your team.

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Monitor W3C and all your external dependencies in real-time

Get notified imediatelly when there's an issue with W3C or other services

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from W3C and other services.

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Get notified imediatelly when there's an issue with W3C or other services

Send outage information from W3C and other services to your tools

IsDown integrates with 20+ tools. Connect the status of W3C and 5,350 other vendors to your tools to receive vendor outage alerts exactly where your team needs them.

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Send outage information from W3C and other services to your tools

Share W3C status in your status page

Create a status page that can easily be access by your team and customers. You can make it public or private, and customize it to your needs. This will be your first line of communication when there's the question 'Is W3C down?'

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Share W3C status in your status page

W3C Downdetector vs IsDown

Need similar to Downdetector W3C alerts? IsDown might be the solution for you. While Downdetector relies on user-submitted reports to detect W3C outages, IsDown monitors W3C's status page for verified, detailed incident information. Here's why official monitoring provides better reliability for your business:

Features
Downdetector
Official W3C status page monitoring with real-time incident details.
Monitor 5,350+ services including W3C in a single dashboard.
Instant W3C outage alerts sent to Slack, Teams, PagerDuty, and more.
Combined monitoring of W3C official status and user-reported issues.
Maintenance feed for W3C
Granular alerts filtering by W3C components and regions.
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Frequently Asked Questions

Is W3C down today?

W3C isn't down. You can check W3C status and incident details on the top of the page. IsDown continuously monitors W3C official status page every few minutes. In the last 24 hours, there were 0 outages reported.

What is the current W3C status?

W3C is currently operational. You can check W3C status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.

Is there a W3C outage now?

No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.

Is W3C down today or just slow?

Currently there's no report of W3C being slow. Check on the top of the page if there are any reported problems by other users.

How are W3C outages detected?

IsDown monitors the W3C official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.

Is W3C having an outage right now?

W3C last outage was on December 05, 2025 with the title "503 on www.w3.org"

How to check if W3C is down?

Why use IsDown to monitor W3C instead of the official status page?

Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor W3C and all the services that impact your business. Get a dashboard with the health of all services and status updates. Set up notifications via Slack, Datadog, PagerDuty, and more, when a service you monitor has issues or when maintenances are scheduled.

How IsDown compares to DownDetector when monitoring W3C?

IsDown and DownDetector help users determine if W3C is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information instead of just relying on reports from users. The integration allows us to provide more details about W3C's Outages, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.

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