New Delhi | December 5, 2025 | Friday morning brought chaos to the digital world when thousands of websites and mobile apps around the globe suddenly went offline. The disruption, caused by a major technical fault at Cloudflare, crippled key internet infrastructure, halting access to trading platforms, payment systems, and e-commerce websites for millions of users.
In India, the impact was most visible in the stock trading segment, where leading brokerage apps — Groww, Upstox, and Zerodha — went down for nearly 20 minutes, leaving traders unable to log in or execute market orders.
What caused the outage – Cloudflare’s global backbone collapses
Cloudflare Inc., a US-based internet infrastructure company, provides key services that keep most websites fast, secure, and reliable. Its technology powers a large share of global internet traffic through content delivery networks (CDNs), DDoS protection, web application firewalls (WAF), and DNS management systems.
When a user accesses a website, their request typically routes through one of Cloudflare’s 300+ global data centers before reaching the site’s original server. The system filters, caches, and encrypts web traffic — ensuring speed and safety.
However, a core network configuration error during an ongoing system upgrade disrupted this process, causing websites that depend on Cloudflare’s network to lose connectivity worldwide.
India hit hard – Trading apps freeze during market hours
In India, the outage struck at a critical time — during active market trading hours. Users of Groww, Upstox, and Zerodha began reporting login failures, frozen charts, and incomplete order executions across both mobile and web platforms.
Social media quickly flooded with complaints.
One trader wrote on X (formerly Twitter):
“Markets are moving fast, but our trading apps are down. This is a nightmare for intraday traders.”
Many retail investors expressed fear of potential losses as they couldn’t monitor open positions or exit volatile trades in time.
20-minute blackout: systems gradually restored
According to real-time outage trackers, the disruption lasted for about 20 minutes before Cloudflare’s emergency response teams restored services.
In a preliminary statement, Cloudflare acknowledged the issue, stating:
“A technical error occurred during a scheduled system upgrade, temporarily affecting our global services. Our teams identified the cause and restored normal operations on a fast-track basis.”
Within minutes, apps and websites began coming back online across Asia, Europe, and North America.
Not just India – Global impact across sectors
The outage had a worldwide ripple effect, disrupting social media networks, e-commerce platforms, payment gateways, gaming servers, and business tools.
According to reports, global websites like Reddit, Shopify, Binance, Twitch, and Discord also experienced temporary downtime.
The incident highlighted how deeply interconnected the global digital economy is — where a fault in one service provider can impact millions of businesses simultaneously.
Market reaction and trader concerns
The outage caused brief panic in financial markets, especially among day traders, who rely on real-time data and fast execution.
A Mumbai-based market analyst said:
“Such blackouts expose how fragile our dependence on third-party infrastructure is. Brokerages must invest in redundancy systems or offline trading protocols to ensure continuity.”
The DGCA-equivalent body for fintech regulation is expected to seek incident reports from affected firms to evaluate potential consumer impact.
Experts: ‘A reminder of digital dependency’
Cybersecurity experts say this episode underscores the vulnerability of the global digital backbone to single-point failures.
“A single server outage can paralyze the entire internet — that’s the reality of our interconnected systems,”
said a senior cyber policy researcher based in Singapore.
Cloudflare restores full operations
By late morning, Cloudflare confirmed all its systems were fully operational. The company said a forensic audit is underway to identify the root cause and implement safeguards to prevent a recurrence.
Trading platforms, meanwhile, resumed normal operations, though users and experts alike described the incident as a wake-up call for digital infrastructure resilience.
