Cloudflare down LIVE: Internet chaos as websites and apps including Zoom, LinkedIn and TfL go blank

The internet has been hit with another major outage after Cloudflare suffered an error.

Websites including Transport for London, LinkedIn, Zoom and the outage monitor Downdetector were all unusable on Friday morning.

Cloudflare said in a statement: “Cloudflare is investigating issues with Cloudflare Dashboard and related APIs.

“Customers using the Dashboard / Cloudflare APIs are impacted as requests might fail and/or errors may be displayed.”

Follow below for all the latest updates...

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Cloudflare update

10:55 , Tom Place

A change made to how Cloudflare's Web Application Firewall parses requests impacted the availability of Cloudflare's network for several minutes today. This was not an attack; the change was deployed by our team to help mitigate the industry-wide vulnerability disclosed this week…

— Cloudflare Help (@CloudflareHelp) December 5, 2025

Outage a warning to web-based businesses, says policy boss

10:38 , Tom Place

Ryan Polk, Director of Policy at The Internet Society, says the outage should act as a warning to businesses to assess their infrastructure

Mr Polk said: "Organisations should assess the resilience of the services they rely on and examine their supply chains. Which systems and providers are critical to their operations? Where do single points of failure exist?

"Companies should explore ways to diversify - such as using multiple cloud, CDN, or authentication providers - to reduce risk and improve overall resilience."

Downdetector stats

10:23 , Tom Place

Industry tracker Downdetector recorded over 2,000 reports related to the Cloudflare outage this morning.

The actual number of outages was much higher - Downdetector itself was one of the sites that was showing a '500 internet server error' message.

The data indicates that most users were experiencing website outages, server-connection failures, and hosting problems.

Cloudflare CEO had vowed to stop outages

10:15 , Tom Place

After the outages on November 18th, CEO Matthew Prince said that Cloudflare would work to ensure it did not happen again.

Mr Prince wrote: "This post is an in-depth recount of exactly what happened and what systems and processes failed.

"It is also the beginning, though not the end, of what we plan to do in order to make sure an outage like this will not happen again.”

Which sites were affected?

10:10 , Tom Place

Huge swathes of the internet were down this morning.

Sites affected by the Cloudflare outages included Zoom, LinkedIn, Canva, Discord, Deliveroo, Substack, Shopify, Coinbase, TfL and Vinted.

Cloudflare statement

10:01 , Tom Place

The company has posted a statement on their website, saying they are working to “analyse and mitigate this problem”.

They said: "Cloudflare is investigating reports of a large number of empty pages when using the list API on a Workers KV namespace.

"Cloudflare is investigating an increased level of errors for customers running Workers scripts.

"We are working to analyse and mitigate this problem. More updates to follow shortly."

What is Cloudflare?

09:55 , Tom Place

Cloudflare is a massive global provider of internet security, carrying out services such as checking visitor connections to sites are coming from humans rather than bots.

Cloudflare claim 20% of all websites worldwide use its services in some form.

Ongoing Cloudflare issues?

09:52 , Tom Place

Today’s outages come just weeks after a number of sites including X, ChatGPT and Spotify went down in mid November.

That “significant” occurred after a configuration file designed to handle threat traffic did not work as intended and "triggered a crash" in its software handling traffic for its wider services.

Services appear to be restored

09:48 , Tom Place

The Cloudflare issues now appear to be resolved.

Reports suggest the outage lasted just over 20 minutes, from 8.52am until 9.13am UK time.

Outages 'not an attack' say Cloudflare

09:33 , Tom Place

Cloudflare outages have hit the internet with a series of error messages this morning.

The series of outages were not an attack, report Cloudflare bosses.

CTO Dane Knecht posted on X: “We are aware of the issue impacting the availability of Cloudflare’s network.

“It was not an attack; root cause was disabling some logging to help mitigate this week’s React CVE.

“Will share full details in a blog post today. Sites should be back online now, but I understand the frustration this causes”