How many companies use HSTS vs Parsley.js?

216,584 companies use HSTS and 607 companies use Parsley.js in our database. HSTS is more widely adopted with 356.8x more companies than Parsley.js.

Can I get a list of companies using both HSTS and Parsley.js?

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 — 356.8x more than Parsley.js (607).

216,584 use HSTS607 use Parsley.js

	HSTS	Parsley.js
Companies	216,584	607
Category	Security	JavaScript libraries

Get the full comparison

217,191 companies with emails, tech stacks, and contacts

1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=hsts

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.