Easily compare CacheFly and Kingsoft Cloud for POP locations, products, pricing, features & support. We hope this helps you better understand the similarities and differences between these content delivery networks.
Company
| Company | CacheFly | Kingsoft Cloud |
|---|---|---|
| Short profile | Launched in 2002, CacheFly developed the world's first TCP-anycast based content delivery network. CacheFly has a focus on optimizing the CDN for throughput and has steadily built out the network to now have 50+ POPs on 6 continents. CacheFly provides a 100% uptime SLA and takes pride in acting as 'consultants to our customers'. | Founded in 2012, Kingsoft Cloud owns data centers and POPs around the globe, provides users services and solutions for vertical industries. Relying on technology accumulation, they focus on video and file delivery and support varied protocols including RTMP, HLS, HDS, HTTP TS and HTTP FLV. |
Products
| Product | CacheFly | Kingsoft Cloud |
|---|---|---|
| Dynamic content deliveryNon-cacheable content delivery. User login, shopping cart ... | ||
| Small file deliveryStatic object delivery; caching of small files (file size <1 MB) | ||
| Large file deliveryStatic object delivery; caching of large files (file size >1 MB) | ||
| Live videoDelivery of live video. RTMP? Transcoding/transmuxing? | Ultra Low Latency Video Streaming | Live Stream Acceleration |
| Video on demandDelivery of on demand video | VoD | Video On Demand Acceleration |
| Image OptimizationAutomatic image transformation/compression/optimization | Smart Image Optimization | Need to enable Kingsoft Standard Storage Service |
| DNSAuthoritative DNS for customer domain | ||
| WAFWeb Application Firewall | ||
| Anti-DDoSDDoS attack protection. Specific product(s) for this. | ||
| Private CDNDedicated edge resources & custom configs | Fully custom solution | |
| Edge ComputeRun your code on CDN edge servers | Custom solutions available for edge scripting |
Network
How many POP locations do CacheFly and Kingsoft Cloud have in different parts of the world?
| Region | CacheFly | Kingsoft Cloud |
|---|---|---|
| North America | 17 | 5 |
| Latin America | 18 | 0 |
| Europe | 16 | 1 |
| Russia & CIS | 0 | 1 |
| Asia excl. China | 7 | 8 |
| China | 2 | 600 |
| Oceania | 3 | 0 |
| Middle East | 5 | 1 |
| Africa | 1 | 0 |
Pricing
| Pricing & contract duration | CacheFly | Kingsoft Cloud |
|---|---|---|
| Minimum contract term | 1 month | No minimum |
| Minimum monthly costs | $0 (5 TB/m) | No minimum |
| Requests costsCustomers pay for client to CDN requests | No | None |
| Ingress costsCustomers pay for origin-to-CDN bytes transferred | No | None |
| NA/EU traffic (low volume) | $0.03 per GB | $0.03 per GB |
| APAC traffic (low volume) | $0.03 per GB | $0.07 per GB |
| LATAM traffic (low volume) | $0.03 per GB | $0.08 per GB |
Features
| Web acceleration | CacheFly | Kingsoft Cloud |
|---|---|---|
| Instant setupSign up, configure, start testing. | Account creation requires a Kingsoft Cloud employee's assistance | |
| Change propagation delayHow fast do config changes propagate to all POPs? | 5 - 180s depending on the change | 5 minutes |
Apex/root domain OK  No performance degradation when using http(s)://domain.com |
Must purchase dedicated IP
Or use DNS provider that can do CNAME flattening
|
|
| HTTP/2 | ||
| HTTP/3 | ||
| WebSockets | ||
| IPv6Do the edge servers have IPv6? | Custom enablement | |
| Compression Reduce file size for faster delivery |
Resend from origin | |
| Origin pull - protocolHTTP only or HTTPS possible too? |
HTTP and HTTPS
Match client to edge request protocol is possible
|
HTTP and HTTPS.
Match protocol
|
| Origin pull - Host headerUse client > edge value? Set specific value? | Set specific Host header value or forward value from client to edge request. Support for AWS Origin Secret Key Header |
Configure specific other Host header
CDN can also forward client request Host header to origin
|
| Origin ShieldOne POP pulls from origin, other POPs pull from the shield POP | Setup by a Kingsoft Cloud employee | |
| Waiting RoomDuring peak traffic, route users to a virtual waiting room | ||
| Push / uploadStore your content directly on CDN, no customer origin | FTP or Cloud Storage can be enabled | Customers can use Kingsoft Standard Storage Service Product. Upload via API. $0.1 per GB stored |
| Cache control - CDN caching | Origin headers are honored. Can config caching overrides |
By default, CDN honors origin headers
Full and granular control is possible
|
| Cache control - client caching | Origin headers are forwarded to client. Can config overrides |
By default, CDN honors origin headers
Full and granular control is possible
|
| Serve Stale CDN serves cached but expired content in case origin is in trouble |
CacheFly support team can activate this edge behaviour | Cache-Control extensions support |
| Purge Invalidate or delete cached objects on CDN |
Purge Speed | Avg. purge time is 40s, 99.97% completed within 5 minutes |
| Purge - capabilities | Purge all and by directory, not by tag or header | Purge all, purge by directory, soft purge |
| Analytics | Near real-time, lots of metrics | |
| Log files |
Pull via FTP or have pushed with Log Streaming to customer endpoint
Logs are 5 minutes delayed
|
Accessible via UI and API. Free |
| API | Purge, analytics, configuration | Purge, configuration, analytics, logs |
| HTTPS & Content Protection | CacheFly | Kingsoft Cloud |
|---|---|---|
| CDN domain HTTPSUse the CDN's domain, like cloudfront.net | Free | SNI |
| Customer domain HTTPSYour domain in the CDN's certificate | SNI. Pricing is custom | |
| Customer cert HTTPSYour certificate on the CDN | Upload your own Certificate or Include Automatic Certificate | SNI. Pricing is custom. EV cert possible |
| Token authentication | Self-service activation/configuration | Support is needed, custom pricing |
| Geo blocking | Self-service activation/configuration. Predefined and custom rules | Support is needed, custom pricing |
| Hotlink protectionThird parties cannot deeplink to your content | Whitelist/blacklist on Referer header (max 100 entries) | |
| Basic authenticationUser logs in on the CDN to get content | Available in a Custom/Private CDN scenario | |
| IP white/blacklisting | Custom rules can be scripted (by support team at no extra charge) | Whitelist/blacklist on IP (max 100 entries) |
Support
| Customer support | CacheFly | Kingsoft Cloud |
|---|---|---|
| Documentation | Yes, public | Good documentation but not public |
| Humans | All customers get 24/7 email and phone support and a dedicated implementation/solutions engineer. Extra support ('Elite managed') available at a fee with SLA for support response time | Free, 24/7 email support and phone support |