30 million users, <300ms latency: Cốc Cốc optimizes Vietnam's most-used browser with GreenNode vCDN

<300ms

average latency for static content delivery via GreenNode vCDN

30M+

users served stably with fast, consistent browser performance

Technology

Cốc Cốc is Vietnam's second-largest browser and search engine, built specifically for Vietnamese users — with 30 million people relying on it daily. Delivering fast, consistent performance to that scale of users, across the entire country, demands infrastructure engineered for Vietnam. GreenNode's domestic vCDN gave Cốc Cốc the speed edge it needed.

N/A
Employees
2010
Year found
Ha Noi
Head Quarter

vCDN

Talk to our team

Cốc Cốc is a Vietnamese technology company that has developed a web browser and search engine designed specifically for Vietnamese users. Founded in 2010, Cốc Cốc continuously improves its products to deliver a smart, safe, and user-friendly browsing experience. With a mission to help Vietnamese people get the most from the internet, Cốc Cốc currently serves over 30 million users in Vietnam — making it the country's second-largest browser by market share.

Challenge

As Cốc Cốc's user base grew rapidly and expectations for seamless performance increased, the company faced three interconnected infrastructure challenges:

Static content delivery speed: Images, videos, and source files needed to load fast and consistently across all regions of Vietnam — with near-instant response times.
Minimizing latency at peak load: During high-traffic periods and major campaigns, system latency needed to remain stable and predictable.
Scalable, always-on availability: The platform had to handle sudden traffic spikes without degradation — while remaining easy to scale up quickly.
A domestic technology partner: Cốc Cốc needed a partner with deep understanding of Vietnamese user behavior, local infrastructure compatibility, and compliance with Vietnam's regulatory requirements.

Solution

GreenNode deployed a targeted set of solutions built around Cốc Cốc's specific performance and growth requirements:

vCDN (Content Delivery Network): Efficiently distributes static files to users across multiple regions of Vietnam with minimal latency — ensuring fast, consistent delivery regardless of location.
Domestic infrastructure optimized for Vietnam: Specifically designed to serve Vietnamese users, delivering short response times that international providers cannot match.
Flexible, on-demand scaling: Resources can be adjusted in real time to match campaign needs or sudden traffic surges — without service disruption.
Dedicated technical support: GreenNode's engineers remain closely engaged throughout, responding quickly to every request at every stage of product development.

Representative, Cốc Cốc
GreenNode is a dedicated, professional, and modern partner. The technical team's support is fast and effective — especially their ability to handle requests flexibly according to our needs at any given time."

Results

Average latency reduced to under 300ms: Static content now loads with an average response time below 300ms — a meaningful improvement in the browsing experience for millions of users.
High-volume, continuous traffic handled with ease: Systems perform reliably during major growth campaigns and peak usage periods without degradation.
Improved system reliability and operational confidence: Cốc Cốc's team can focus on building new features and optimizing performance, knowing their infrastructure is stable and supported.

Future Plans

Cốc Cốc will continue expanding its partnership with GreenNode, deploying additional technology services including vServer and security solutions — building toward a fully optimized infrastructure stack that delivers an ever-better web experience for tens of millions of Vietnamese users.