Question 1

How many companies use HSTS vs Phusion Passenger?

Accepted Answer

79,555 companies use HSTS and 280 companies use Phusion Passenger in our database. HSTS is more widely adopted with 284.1x more companies than Phusion Passenger.

Question 2

What percentage of HSTS users also use Phusion Passenger?

Accepted Answer

0% of companies using HSTS also use Phusion Passenger (140 companies). This overlap suggests the tools serve complementary rather than competing purposes.

Question 3

Which industries prefer HSTS over Phusion Passenger?

Accepted Answer

The top industries using HSTS are E-commerce & Retail, Media & Content, Other, Financial Services & Fintech, Professional Services. For Phusion Passenger, the top industries are E-commerce & Retail, Media & Content, Other, Hospitality & Travel, Education & Learning.

Question 4

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

Accepted Answer

Yes. AgentData tracks 140 companies that use both HSTS and Phusion Passenger. Subscribe to access the full list with emails, tech stacks, and contacts via CSV or API.

	HSTS	Phusion Passenger
Companies	79,555	280
Category	Security	Web servers
Emails available	198,567	320
Overlap	0% of HSTS users also use Phusion Passenger (140 companies)

HSTS vs Phusion Passenger

Side-by-side comparison

Company adoption

Top industries

Top companies using HSTS

Top companies using Phusion Passenger

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