A breakdown of the 6.3K+ companies running mod_pagespeed.
Top industries
Health and wellness814
Professional and business services738
Art, sports and recreation548
Information technology and services486
Construction and building448
Industrial and manufacturing411
Education and training307
Hospitality and travel298
No industry recorded: 486
Company size
1–101,657 (56%)
11–50730 (24%)
51–250428 (14%)
251–50084 (3%)
501–1,00028 (1%)
1,001–5,00037 (1%)
5,001–10,0007 (<1%)
10,001+12 (<1%)
Share of companies with a recorded size, by employees.
No size recorded: 3.3K+
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Frequently asked questions
About the mod_pagespeed data on this page.
How many companies use mod_pagespeed?
Firmable holds confirmed mod_pagespeed detections for 6,332 distinct companies, 4,894 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use mod_pagespeed?
Chow Sang Sang Holdings International Limited, Salem Public Schools and AWC (American Water Chemicals) are among the most prominent in the current set.
What industries use mod_pagespeed?
Health and wellness, professional and business services and art, sports and recreation lead the set, across 19 industries in total.
What size companies use mod_pagespeed?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are mod_pagespeed users based?
The United States, Australia, Japan and Canada account for most detections, across 13 countries.
How current is this data?
4,894 companies were confirmed in the last 90 days. Last detection 7 September 2026.
