How many companies use HSTS vs Substack?

216,584 companies use HSTS and 359 companies use Substack in our database. HSTS is more widely adopted with 603.3x more companies than Substack.

Can I get a list of companies using both HSTS and Substack?

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.

HSTS is used by 216,584companies — 603.3x more than Substack (359).

216,584 use HSTS359 use Substack

	HSTS	Substack
Companies	216,584	359
Category	Security	Blogs

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216,943 companies with emails, tech stacks, and contacts

1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=hsts

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