Cloudflare fastest in 74% of top 1,000 networks

Cloudflare now ranks as the fastest content delivery provider in nearly three-quarters of the world’s largest networks, a significant increase from earlier this year. The change reflects both performance improvements and a broader measurement approach that captures more real-world user conditions without requiring additional user interaction.

How Cloudflare measures performance

Cloudflare evaluates network speed by tracking the time required for a user’s device to complete a TCP handshake when requesting content. This metric, called connection time, closely aligns with how users perceive speed and accounts for factors like distance, routing efficiency, and network congestion. To rank providers, Cloudflare calculates a trimean—a weighted average of the 25th, 50th, and 75th percentiles of connection times—which reduces the impact of outliers while still reflecting typical user experiences.

Historically, Cloudflare gathered performance data from its branded error pages, which run background measurements when users encounter them. While effective, this method was limited to a narrower set of scenarios. In August 2026, Cloudflare introduced a new data source: Challenge Pages, which are full-page screens that verify visitors before granting access to a website. These pages, delivered via Cloudflare Turnstile, now include non-intrusive performance measurements that run in the background while the challenge is active.

The shift to Challenge Pages has expanded the volume and diversity of performance data. Unlike error pages, which only appear in specific cases, Challenge Pages are deployed across a wide range of websites and user conditions. This broader reach allows Cloudflare to collect measurements from more networks, including those outside the top 1,000, and to gather more samples within each network. The increased data volume improves the stability of rankings, particularly in networks where the fastest providers are separated by only a few milliseconds.

Impact of the new methodology

Since April 2026, Cloudflare has become the fastest provider in an additional 150 of the top 1,000 networks, bringing its total to 74%. The improvement is most noticeable in 38 additional countries where Cloudflare now leads. The new measurement approach has played a key role in this shift by providing a clearer signal in networks where performance differences among top providers are minimal.

For example, in some networks, Cloudflare previously ranked second despite having a trimean connection time only 1 or 2 milliseconds slower than the fastest provider. With more data points, the rankings are less sensitive to daily fluctuations and outliers, resulting in more consistent and accurate comparisons. The expanded dataset also allows Cloudflare to explore new analytical approaches, such as weighting performance by user population or grouping results by country rather than network.

What the data means for operators

The expanded measurement methodology does not alter the underlying performance improvements but provides a more precise view of how users experience speed across different networks. For operators, this means Cloudflare’s rankings are now based on a larger and more representative dataset, reducing the likelihood of short-term fluctuations affecting perceived performance. The data also highlights networks where performance gaps are narrow, offering opportunities for further optimization.

Cloudflare has stated that it will continue to refine its measurement approach, including increasing the volume of Challenge Page-based tests if it improves data quality without degrading user experience. The company plans to use this data to identify areas for further performance gains and to validate the impact of its ongoing infrastructure investments.