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Outage of Cloudflare Content Delivery Network Disrupts Major Internet Sites UPDATE4

Tuesday, Nov 18th, 2025 (12:52 pm) - Score 1,040
Cloudflare-outage-18th-november-2025

The American content delivery network (CDN) and IT service management company, Cloudflare, appears to be suffering from a major global outage. This is currently disrupting connectivity to some of the internet’s most popular websites (e.g. X, ChatGPT, Digital Scotland, Tinyurl.com’s anti-abuse system etc.) and many smaller online services too.

The situation, which appears to have started at around 11:20am today, has been steadily propagating sporadically across the internet and causing websites that use Cloudflare’s services to spit out Error 500 (Internet Server Errors) messages on a holding page (pictured), albeit not due to the website itself but rather a failure within Cloudflare’s platform.

According to Cloudflare’s service status page: “Cloudflare is experiencing an internal service degradation. Some services may be intermittently impacted. We are focused on restoring service. We will update as we are able to remediate. More updates to follow shortly.” But at 12:21pm, the provider added that they were starting to “see services recover, but customers may continue to observe higher-than-normal error rates as we continue remediation efforts“.

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The situation bears some similarities to last month’s major global outage of the Amazon Web Services (AWS) cloud-platform (here), although at first glance the disruption doesn’t appear to have lasted as long or been as disruptive as that. But that may depend upon how things progress over the next few minutes or hours.

UPDATE 1:07pm

A number of websites and services did briefly come back to life for a few minutes, before promptly falling over again just a moment ago. The impacts appear to be quite sporadic and variable.

UPDATE 1:17pm

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The latest update from Cloudflare suggests some progress is being made.

Update – Nov 18, 2025 – 13:13 UTC

We have made changes that have allowed Cloudflare Access and WARP to recover. Error levels for Access and WARP users have returned to pre-incident rates.
We have re-enabled WARP access in London.

We are continuing to work towards restoring other services.

UPDATE 2:25pm

Cloudflare has just said they’re “continuing to work on a fix for this issue“, which over the past hour seems to have returned yet again for many sites and online services. For those who can’t access DownDetector‘s website due to the same problem, here is the current graph of reports:

Cloudflare-outage-downdetector-screenshot

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UPDATE 2:42pm

Quite a few websites just returned to life and Cloudflare has posted the following update: “A fix has been implemented and we believe the incident is now resolved. We are continuing to monitor for errors to ensure all services are back to normal.”

The catch is that some customers may be still experiencing issues logging into or using the Cloudflare dashboard.

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Mark-Jackson
By Mark Jackson
Mark is a professional technology writer, IT consultant and computer engineer from Dorset (England), he also founded ISPreview in 1999 and enjoys analysing the latest telecoms and broadband developments. Find me on X (Twitter), Mastodon, Facebook, BlueSky, Threads.net and .
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Comments
9 Responses

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  1. Avatar photo Billy Shears says:

    Ah, thanks for that. Now I know why some websites are throwing up that strange error message.

  2. Avatar photo Chris Jones says:

    I found this problem first of all with Feedly, then also with Twitter (X) at which point I did some research to discover that the issue was Cloudflare’s Manchester centre (for me).

    One Facebook group manager also indicated that Ancestry, MyHeritage and some other sites were also impacted.

  3. Avatar photo Josh Welby says:

    Traveling.info Website is also affected
    as of now

  4. Avatar photo anon says:

    This is the exact problem with allowing a company to MITM (yeah it’s a MITM proxy) your websites/apps/services. Finally our CTO has decided we need a contingency plan for when this happens

  5. Avatar photo Name says:

    We have a chance to beat the number of comments record if everyone post here at least one service affected.

  6. Avatar photo NE555 says:

    I won’t post any more URLs, but I do note that Cloudflare is still down in London as of 14:17 UTC.

    1. Avatar photo Gerarda says:

      so was a site I was trying to access, but its just gone back online

  7. Avatar photo Cebes says:

    Ironically a lunchtime timed attack including https://downdetector.com.

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