# CDN77, what it is and how websites use it.

A global CDN of Czech origin, focused on content delivery and video streaming.

- **Status:** Stable. Actively operated.
- **Category:** [Servers & Hosting](https://be1st.ai/technologies/server)
- **First release:** 2012
- **License:** Proprietary
- **Official website:** https://www.cdn77.com
- **Documentation:** https://client.cdn77.com/support/knowledgebase
- **Page:** https://be1st.ai/technologies/server/cdn77

## CDN77 on audited websites

42 of the 16,845 websites audited by be1st run CDN77 (<1%). That ranks it #24 of the 34 technologies in Servers & Hosting we have seen in audits.

### Websites running CDN77 vs all websites

- **Web score:** 79 (all websites 72)
- **SEO:** 88 (all websites 79)
- **Security:** 75 (all websites 59)
- **Performance:** 58 (all websites 72)
- **AI Readiness:** 31 (all websites 31)

### Most used in Servers & Hosting

1. [Cloudflare](https://be1st.ai/technologies/server/cloudflare): 22% (3,772)
2. [Vercel](https://be1st.ai/technologies/server/vercel): 22% (3,635)
3. [Google CDN](https://be1st.ai/technologies/server/google-cdn): 16% (2,700)
4. [nginx](https://be1st.ai/technologies/server/nginx): 14% (2,284)
5. [OpenResty](https://be1st.ai/technologies/server/openresty): 10% (1,707)
6. [Apache HTTP Server](https://be1st.ai/technologies/server/apache-http-server): 9.3% (1,574)
7. [jsDelivr](https://be1st.ai/technologies/server/jsdelivr): 7.2% (1,221)
8. [cdnjs](https://be1st.ai/technologies/server/cdnjs): 6.0% (1,019)
9. [Netlify](https://be1st.ai/technologies/server/netlify): 5.8% (971)
10. [AWS CloudFront](https://be1st.ai/technologies/server/aws-cloudfront): 5.1% (859)

## Other technologies in Servers & Hosting

- [unpkg](https://be1st.ai/technologies/server/unpkg): 2.8% of websites
- [Fastly](https://be1st.ai/technologies/server/fastly): 1.6% of websites
- [BunnyCDN](https://be1st.ai/technologies/server/bunnycdn): 1.2% of websites
- [Microsoft IIS](https://be1st.ai/technologies/server/microsoft-iis): 1.0% of websites
- [LiteSpeed](https://be1st.ai/technologies/server/litespeed): <1% of websites
- [Caddy](https://be1st.ai/technologies/server/caddy): <1% of websites
- [Amazon S3](https://be1st.ai/technologies/server/amazon-s3): <1% of websites
- [Google Cloud](https://be1st.ai/technologies/server/google-cloud): <1% of websites
- [Varnish](https://be1st.ai/technologies/server/varnish): <1% of websites
- [Azure](https://be1st.ai/technologies/server/azure): <1% of websites
- [Hostinger CDN](https://be1st.ai/technologies/server/hostinger-cdn): <1% of websites
- [GitHub Pages](https://be1st.ai/technologies/server/github-pages): <1% of websites

[All 35 in Servers & Hosting](https://be1st.ai/technologies/server)

## Questions about CDN77

### What is CDN77?

A global CDN of Czech origin, focused on content delivery and video streaming. The be1st catalog lists CDN77 under Servers & Hosting. License of CDN77: Proprietary.

### How many websites use CDN77?

42 of the 16,845 websites audited by be1st run CDN77 (<1%), as of 8 Nov 2026.

### When was CDN77 first released?

CDN77 was first released in 2012.

### Is CDN77 still a modern choice?

CDN77 is a stable, mature choice rather than a new one. Actively operated.

### What are the alternatives to CDN77?

Technologies that do the same job as CDN77 include Cloudflare, Fastly, and BunnyCDN.

Numbers: latest audit of each of 16,845 websites audited by be1st, as of 8 Nov 2026.