How to Evaluate CDN Rankings: Core Capabilities Compared and Selection Guide for the Top 10 Global CDN Providers

When people open a CDN ranking, many immediately pick the first-place provider.

That is exactly where things can go wrong.

A CDN ranking only shows how a provider performed during a specific test period, in specific regions, and under a uniform testing methodology. It does not prove that it is the best fit for your business. A CDN with very low latency in North America may be average in mainland China or Southeast Asia; fast static file delivery does not mean dynamic APIs, video, large file downloads, and performance during attacks will be equally reliable.

To use CDN rankings correctly, look at five things in order:

1. Whether the ranking is based on latency, availability, throughput, or an overall score;

2. Whether the test regions cover your main users;

3. Whether the sample size and test period are sufficient;

4. How P50 and P95 perform;

5. Whether the provider's security, dynamic acceleration, video, and edge computing capabilities fit your business.

In other words, CDN rankings are better for building a shortlist than for replacing a procurement decision.

Current Global Top 10 CDN Ranking Reference

The following data comes from the CDNChart global 24-hour overall ranking. The page shows a data update time of 15:58:11 on September 20, 2026.

The current ranking covers 7 global regions, 349 probes, and 61 providers, with 225,118 samples in total. All providers use the same standard test targets, and latency uses P50 and other percentile metrics. Because the ranking is continuously updated, the positions below represent only this statistical period and are not permanent conclusions.

This table helps users quickly understand global performance for the current period, but the No. 1 spot should not be read as 'the fastest in all regions and for all businesses.'

For example, in the same statistical period, the leading providers in the mainland China ranking were mainly Alibaba Cloud CDN, Huawei Cloud CDN, Volcano Engine CDN, CDN07, and Tencent Cloud CDN; in North America, the leaders were Akamai, Cloudflare, Amazon CloudFront, Fastly, Google Cloud CDN, and Bunny.net. Regional differences are enough to change the entire shortlist.

When Looking at CDN Rankings, First Distinguish the Ranking Basis

Latency Rankings Show How Fast a Typical Request Is

Latency usually reflects how quickly a probe receives a response from the test target. Lower values generally indicate advantages in node distance, network path, and edge response.

But note that latency in the tens of milliseconds does not mean a full web page opens in tens of milliseconds. A page also needs to load images, JavaScript, CSS, fonts, and third-party APIs.

CDN latency is closer to basic network and edge delivery capability. Full page speed is also affected by the origin server, cache hit rate, file size, and front-end code.

P50 Represents Typical Performance; P95 Is Closer to the Slow User Experience

P50 is the median. If a CDN's P50 latency is 40 ms, it means that among the current samples, about half of requests are no higher than this value and half are higher.

P95 looks at slower requests further out in the tail. Two CDNs may have similar P50 values, but if one has a noticeably higher P95, it is more likely to produce slow requests in certain regions, with certain carriers, or during network fluctuations.

Therefore, do not only ask 'what is the average speed?' Tail latency also matters. For payment, gaming, API, and real-time interaction businesses, P95 is often more important than a single fastest result.

Availability Rankings Are Not the Same as a Provider's SLA

Availability in a ranking is usually based on whether probe requests succeed. It reflects the reachability of the test target during a given period, but it is not equivalent to the SLA in a provider contract.

Probe failures may come from:

• CDN node failure;

• rate limiting on the target site;

• WAF blocking probes;

• temporary DNS anomalies;

• network path fluctuations;

• origin fetch failure;

• issues on the test client itself.

Likewise, 99.8% in a 24-hour sample cannot be directly extrapolated to annual business availability. During procurement, you still need to check the SLA definition, compensation terms, exclusions, and statistical method.

Throughput Rankings Are Better Suited to Large Files and Video

If your business mainly involves software downloads, installers, video-on-demand, or large image distribution, small-file latency alone is not enough.

These businesses should pay more attention to:

• single-connection and multi-connection download speed;

• peak-hour throughput;

• large-file caching capability;

• Range segment requests;

• video segmentation and origin fetch efficiency;

• burst capacity for popular content;

• sustained download speed in different regions.

Low latency can make a download start faster, but it does not necessarily guarantee that the entire file will transfer at high speed.

Overall Scores Are Only Suitable for Quick Initial Screening

An overall score compresses multiple metrics into a single number. It is useful for quickly narrowing down candidates from dozens of providers, but it also hides details.

Two CDNs with the same overall score may differ: one may have lower latency, while the other has higher availability; one may suit global developer businesses, while the other is better for video distribution in mainland China.

Before reading an overall score, first checkthe CDNChart testing methodology and scoring criteria. The platform's current methodology also clearly states: when a real metric does not meet the public threshold, it may continue to display a reference baseline; node coverage comes from probe observations and is not equivalent to a provider's official complete node list; and test results may also be affected by target site fluctuations, rate limiting, and temporary network jitter.

Core Capability Comparison of the Global Top 10 CDN Providers

The ranking reflects performance in the current test period, while the 'core capabilities' below explain each provider's product direction. Provider-stated node counts, protection capacity, and product features should not be confused with third-party measured latency.

Akamai: Geared Toward Large Enterprises and Global Content Delivery

Akamai CDNIt has long served large enterprises, media, e-commerce, and high-traffic internet businesses, with products covering content delivery, application security, DDoS protection, and edge computing.

Its EdgeWorkers allow enterprises to run JavaScript logic at the edge for request processing, content customization, and edge business orchestration.

Akamai is better suited to customers that need global delivery, complex rules, and an enterprise service system. When selecting it, in addition to testing performance, evaluate contract terms, configuration, and operations thresholds.

Cloudflare: From Free Onboarding to an Enterprise Security Platform

Cloudflare CDNis characterized by carrying CDN, DNS proxy, DDoS protection, WAF, Bot Management, and edge computing on the same network.

Cloudflare Workers can run edge functions, making them suitable for redirects, authentication, A/B testing, API processing, and lightweight application logic; WAF provides managed rules and custom rule capabilities.

It suits individual site owners, SaaS, and global enterprises that want quick onboarding. However, if your core users are in mainland China, you must separately verify actual access performance across China Telecom, China Unicom, China Mobile, and different provinces.

Amazon CloudFront: Suited to AWS-Native Architectures

Amazon CloudFrontintegrates closely with services such as S3, Application Load Balancer, API Gateway, AWS WAF, and AWS Shield.

CloudFront Functions are suitable for lightweight request processing, while Lambda@Edge can execute more complex content customization logic at the edge. AWS official documentation also states that CloudFront can be combined with AWS WAF for web application protection.

If your origin and business systems are already deployed on AWS, CloudFront usually makes it easier to form a complete architecture. What matters is not a single traffic unit price, but the combined costs of requests, data transfer, origin fetches, logs, functions, and security services.

Fastly: Emphasizing Programmable Caching and Real-Time Control

Fastly is commonly used by technical teams for APIs, media, and dynamic content businesses. Its strengths include programmable cache policies, edge computing, rapid configuration deployment, and application and API security.

Fastly Next-Gen WAF protects web applications, APIs, and microservices, and its security capabilities can work with its edge delivery platform.

The actual results of such platforms depend heavily on whether the team has operations expertise in cache rules, VCL, or edge logic. Strong features do not mean no tuning is required after onboarding.

Google Cloud CDN: Suited to GCP and Global Web Businesses

Google Cloud CDNuses Google's global edge network to cache content closer to users and integrates with Google Cloud load balancing.

Cloud CDN focuses mainly on web content, while Media CDN is oriented toward video and large-scale media distribution; for security, it can work with Google Cloud Armor to protect against DDoS and web attacks.

It is better suited to businesses whose origins are already on Google Cloud and that need unified load balancing and security policies. The mainland China user experience should still be tested separately and cannot be inferred from global average rankings.

Bunny.net: Suited to Images, Video, and Cost-Sensitive Teams

Bunny.netprovides CDN, Storage, Optimizer, Stream, Edge Scripting, and security products. Its feature mix is well suited to small and midsize teams, content sites, software downloads, and video businesses.

Optimizer is used for image compression and format conversion, while Stream integrates video storage, transcoding, distribution, and player. The official product pages also offer CDN, storage, video, image optimization, and edge scripting as separate capabilities.

When choosing Bunny.net, you should focus on testing target-region routes, sustained throughput, and origin fetch stability, rather than relying only on global P50 latency.

CDN07: Geared Toward Asia-Pacific High-Defense and Game Security

According toCDN07's current official website, its product focus includes Asia-Pacific CDN acceleration, high-defense CDN, DDoS and CC protection, high-defense servers, and app and game shields.

This product positioning is better suited to gaming, finance, e-commerce, and businesses prone to attacks. The protection capacity stated on the official website is a vendor product claim. Before formal procurement, verify scrubbing thresholds, false positives, origin hiding, over-limit policies, and availability during attacks through attack drills or a POC.

Yewsafe: Focused on High-Defense CDN and Edge Security

Yewsafe's current official website showcases products including high-defense CDN, Anycast CDN, DDoS protection, app protection, and Edge AI, covering solutions for gaming, finance, live streaming, AI, and blockchain.

Compared with ordinary static CDNs, its product positioning places more emphasis on security protection and industry customization. For official website claims such as 'node count' or 'unlimited protection,' do not treat them directly as third-party measured conclusions. Buyers still need to review contract definitions, scrubbing policies, and real attack records.

Alibaba Cloud CDN: Suited to Mainland China and the Alibaba Cloud Ecosystem

Alibaba Cloud CDN is suitable for websites, images, file downloads, and media distribution, and can also work with OSS, ECS, WAF, and other Alibaba Cloud services.

Alibaba Cloud official documentation states that CDN caches content through global edge nodes and supports configuring multiple origin addresses as well as active/standby, weighted, and other origin policies.

If your users are mainly in mainland China, Alibaba Cloud CDN is worth shortlisting, but you need to confirm in advance domain ICP filing, domestic and international service regions, billing regions, and product boundaries among CDN, DCDN, and WAF.

Huawei Cloud CDN: Suited to Domestic Enterprises and Video Businesses

Huawei Cloud CDN covers content delivery scenarios such as websites, downloads, video-on-demand, and live streaming, and offers full-site acceleration and cloud security product combinations.

EdgeSec can add DDoS, CC, and WAF-related protection capabilities to Huawei Cloud CDN and full-site acceleration domains.

It is better suited to mainland China enterprises, video businesses, and customers already using Huawei Cloud infrastructure. For cross-border business, still test domestic, Hong Kong/Macau/Taiwan, Southeast Asia, Europe, and North America routes separately.

How Different Businesses Should Use CDN Rankings

Mainly Mainland China Users

Do not look only at global rankings. Focus on comparing China Telecom, China Unicom, China Mobile, and major provinces. Also confirm whether ICP filing is required, domestic nodes, cross-carrier optimization, and domestic technical support.

Mainly North American or European Users

Check the corresponding regional rankings first, then compare P50, P95, availability, and peak-hour throughput. Global averages may be diluted by other regions and may not accurately represent your core market.

Images, Video, and Software Downloads

Latency rankings are only the first step. Also check throughput, large files, Range requests, cache hit rate, image processing, transcoding capabilities, and traffic costs.

APIs and Dynamic Websites

Focus on connection time, TTFB, dynamic routing, origin network, WebSocket, HTTP/3, edge computing, and WAF capabilities. Static test file rankings cannot fully represent dynamic API performance.

High-Defense and Security Businesses

Performance data in rankings cannot directly prove DDoS or WAF capabilities. Verify protection scope, scrubbing thresholds, over-limit handling, origin IP protection, false positive rate, logging, and emergency response.

From CDN Rankings to Formal Selection: Four Recommended Steps

Step 1: In theGlobal CDN Ranking, filter three to five candidate providers by global or target region, latency, availability, and throughput.

Step 2: Use theCDN Provider Comparisonto review candidate providers' public performance metrics side by side. Do not compare only overall scores.

Step 3: Prepare the same set of real business URLs, including homepage, images, JavaScript, APIs, large files, and dynamic pages. After onboarding to a trial environment, use theWebsite Speed Test Toolto compare status codes, resolved IPs, DNS lookup time, connection time, and total time across regions and carriers.

Step 4: Run a real-business POC for at least several days and record:

• P50 and P95 latency;

• availability and error codes;

• cache hit rate;

• origin fetch traffic;

• peak-hour throughput;

• availability during attacks;

• false positives and time to allow traffic;

• actual billing;

• ticket response speed.

Only after completing these four steps can CDN rankings truly become an actionable basis for selection.

FAQ

1. Is the No. 1 provider in a CDN ranking necessarily the best?

Not necessarily. First place only represents a leading result in a specific period and under a specific testing methodology. The final choice differs depending on user regions, business type, security requirements, budget, and operations capabilities.

2. What latency in milliseconds counts as fast for a CDN?

There is no universal number. Latency must be judged together with test regions, carriers, and business type. Rather than pursuing a fixed number, focus on the P50, P95, and slowest nodes in your target user regions.

3. Should I look at overall scores or latency rankings?

For initial screening, look at overall scores. For static pages and API responses, focus on latency. For important businesses, also check availability. For video, downloads, and large-file businesses, add throughput comparisons.

4. Why do global rankings and mainland China rankings differ so much?

Because node coverage, carrier interconnection, cross-border routes, and scheduling policies differ. A CDN with excellent global average performance does not necessarily perform equally well across all three major carriers in mainland China.

5. Does a larger sample size always mean a more accurate ranking?

A larger sample size is usually more useful for reference, but you also need to see whether the samples cover target regions, different carriers, and a sufficiently long period. A large number of samples concentrated in a single region cannot represent global performance.

6. Can CDN rankings determine DDoS protection capability?

Not directly. Regular performance probes can observe latency and availability outside attacks, but protection capacity, scrubbing effectiveness, false positives, and emergency response need to be verified through contracts, logs, drills, or real POCs.

7. How often should I check CDN rankings?

During selection, you can review 24-hour, 7-day, and longer trends together. In daily operations, there is no need to chase daily rank changes; focus more on sustained degradation, regional anomalies, and long-term stability.

8. When two CDNs perform similarly, what should be compared?

Continue comparing target-region coverage, P95 latency, dynamic acceleration, cache rules, security capabilities, logging, APIs, technical support, billing methods, and migration costs. When performance is close, product fit is usually more important than a one- or two-millisecond difference.