How many companies use Fello vs HTTP/3?

202 companies use Fello and 2,603,702 companies use HTTP/3 in our database. HTTP/3 is more widely adopted with 12889.6x more companies than Fello.

Can I get a list of companies using both Fello and HTTP/3?

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

HTTP/3 is used by 2,603,702companies — 12889.6x more than Fello (202).

202 use Fello2,603,702 use HTTP/3

	Fello	HTTP/3
Companies	202	2,603,702
Category	Marketing automation	Miscellaneous

Get the full comparison

2,603,904 companies with emails, tech stacks, and contacts

1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=fello

From the makers of AgentData

DragApp

AI-powered shared inbox, help desk, and team collaboration — inside Gmail. 200K+ users.

HeyHelp

AI email assistant inside Gmail. Drafts, sorts, follows up.

Oneway

All-in-one customer platform — live chat, email, automations, changelogs & roadmaps with AI.

Access technology comparison data programmatically via REST API or MCP.