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Hotjar among Y Combinator companies

Hotjar was detected on 204 of 5,386 crawled Y Combinator company websites, a share of 3.8%.

5,386 of 6,133 Y Combinator domains returned a usable record and form the denominator. 5,242 were counted from a rendered homepage crawl on 4 September 2026, 144 from a plain fetch only, and 747 returned no usable record. Company list: Y Combinator company directory.

Software used by Y Combinator companies · Analytics across all four groups · Hotjar across every group and the wider sample

<a href="https://installmap.com/groups/yc/hotjar"><img src="https://installmap.com/badges/yc/hotjar.svg" alt="Hotjar runs on 3.8% of Y Combinator companies, 204 of 5,386 crawled companies"></a>

[![Hotjar runs on 3.8% of Y Combinator companies, 204 of 5,386 crawled companies](https://installmap.com/badges/yc/hotjar.svg)](https://installmap.com/groups/yc/hotjar)

Cite

Hotjar was detected on 204 of 5,386 crawled Y Combinator company websites (3.8%). Installmap, 4 September 2026, https://installmap.com/groups/yc/hotjar.

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Other Analytics tools in this group

• Google Analytics 4 41.0%
• Google Tag Manager 29.4%
• PostHog 12.8%
• Cloudflare Web Analytics 9.4%
• Google Universal Analytics 7.9%
• Microsoft Clarity 7.8%
• Segment 3.8%
• Mixpanel 1.9%