How many companies use Fastly vs Varnish?

580 companies use Fastly and 3,912 companies use Varnish in our database. Varnish is more widely adopted with 6.7x more companies than Fastly.

Can I get a list of companies using both Fastly and Varnish?

Yes. AgentData tracks companies using both tools. Subscribe to access the full list with emails, tech stacks, and contacts via CSV or API.

Varnish is used by 3,912companies — 6.7x more than Fastly (580).

580 use Fastly3,912 use Varnish

	Fastly	Varnish
Companies	580	3,912
Category	CDN	Other

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4,492 companies with emails, tech stacks, and contacts

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API access

GET /api/v1/tech?name=fastly

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