Companies Using Hotjar

I spend my days turning detection data into prospect lists, so the first thing I ask of a big number is what's inside it. For Hotjar the answer changed this month. Our October 2026 crawl finds 371,111 live Hotjar domains, and we matched 217,427 of them to a company record. Hotjar ranks 2nd of the 34 tools in Heatmaps & Session Recording with a 22.14% share. Before any analysis, the count needs one explanation. For the wider analytics picture, see our ranking of nine web analytics tools.

1. What the count is now

A domain counts when one of its pages loads Hotjar's script. In October 2026, 69,968 of the 441,079 domains that passed that test turned out to be parked pages, and 66,044 of them were landers for one domain marketplace, DomainMarket.com, whose Google Tag Manager container fires Hotjar under a single shared site ID. A list built on the raw number would have sent a sales team to about 66,000 for-sale pages. We took them out, and every figure here uses the 371,111 that remain.

The usage chart has one point for the same reason: October 2026 is the first month on the cleaned basis, so there's no like-for-like trend to draw yet. What we can say is that 77,221 domains have dropped Hotjar since we began recording drops on March 16, 2026. A drop means our crawler stopped seeing the tag; it doesn't tell us why. Monthly counts also move because the set of domains we crawl turns over, with dead sites leaving and new ones arriving, and because our detection signals widen over time.

The bigger change is on the vendor's side. Hotjar's website now redirects to Contentsquare, and new Hotjar accounts can no longer be created, per Contentsquare's Hotjar page (checked October 11, 2026). Contentsquare bought Hotjar in 2021 and brought its tools into the Contentsquare platform in 2024, according to its company timeline. So the 371,111 is an installed base: sites that set Hotjar up and still load it.

"Sixty-six thousand of the domains carrying Hotjar's tag were for-sale pages run by one marketplace. Check any technology list for a pile like that before a single email goes out." - Emma Davies, Data Analyst at TechnologyChecker.io

Sales Signal: New users now go straight to Contentsquare, so the existing Hotjar accounts are the ones deciding whether to follow. Over the next year those accounts are a natural audience for implementation help or a credible alternative.

2. Customer profile

Hotjar's base is small companies, and the size table isn't close. 49.11% of the 207,989 matched companies with a known headcount have 1 to 10 staff, another 29.19% have 11 to 50, and only 8.70% (18,103 companies) employ more than 200. By founding date, 39.96% of companies with a known year started in the 2010s and 17.14% in the 2020s. Most of these businesses grew up buying software with a card.

The enterprise tail is real but narrow: 768 companies have more than 10,000 staff. On the pages we opened in October 2026, Hotjar usually sat on one property rather than across the estate. Thermo Fisher Scientific runs it on corporate.thermofisher.com, NVIDIA on its blog, ICON plc and Fidelity Investments on their careers sites, Caixa on its investor relations site and Oppo on its photography awards site. Renault Group, Nissan, Mahindra, Aon, MSC and Cargill are the exceptions, with Hotjar on their main corporate domains.

Sales Signal: Split the list at 200 employees. Below it sits a volume market, with 162,846 companies at 50 staff or fewer that buy on price and speed. Above it, read the detection URL first: a careers or investor site tells you which team owns the tag, and it's rarely the central web team.

3. Industry and geographic concentration

The industry table is flat. Retail leads at 5.08%, Software Development follows at 4.59% and Advertising Services at 4.21%, and the top ten industries add up to only 33.47%. Agency-side work is the nearest thing to a cluster: Advertising Services, IT Services and IT Consulting (3.96%) and Business Consulting and Services (2.26%) together reach 10.43%. No sector owns this tool.

Geography is where Hotjar looks different. The United States leads with 61,532 matched companies, but the eight European countries in the top 15, led by the United Kingdom (21,785) and the Netherlands (12,344), add up to 61,975, slightly more than the US alone. The Netherlands ranks 4th, ahead of Brazil (11,823) and Canada (9,790). Germany is the outlier at 4,386, roughly one German company for every 14 American ones.

Sales Signal: Europe is half of this list, so localise the outreach. Run separate sequences for the United Kingdom and the Netherlands, the two largest European markets here, before the long tail of smaller ones.

4. Overlap with Clarity, Contentsquare and Glassbox

There's no migration table on this page, on purpose. Every corridor between Hotjar and a rival failed our still-both test, because most domains that picked up a second recorder kept Hotjar too. Microsoft Clarity is the clearest case. 66,858 domains run Hotjar and Clarity together right now, and of the 86,902 that have ever run both, 76.93% still do. Since March 16, 2026, 8,593 domains dropped Hotjar while running Clarity and 3,550 dropped Clarity while running Hotjar. With three in four pairs still in place, I read those as sites trimming a duplicate tag, and I wouldn't call either side the winner.

Contentsquare owns Hotjar, so overlap there sits inside one company's portfolio. Per the Contentsquare profile, 11,491 of the 35,025 live Contentsquare domains in its stack analysis also run Hotjar, or 32.81%. Glassbox, which buyers ask about as a destination for Hotjar users, is small in our crawl: 765 live domains, 47 of them also loading Hotjar. None of the domains that dropped Hotjar since March 16, 2026 runs Glassbox.

"Three in four sites that ever ran Hotjar and Clarity together still run both, so I wouldn't sell this list as Clarity's next customers. Most of them already are." - Emma Davies, Data Analyst at TechnologyChecker.io

Sales Signal: The 66,858 domains with both tags maintain two recorders and two sets of consent rules. A consolidation pitch, one tool and one configuration, lands better there than a rip-and-replace.

5. Technology ecosystem

Google Tag Manager is on 93.5% of the 369,000 live Hotjar domains in our stack analysis and Google Analytics on 92.36%. Hotjar is almost always one tag in a container, next to the analytics it was bought to explain. HubSpot reaches 14.8%, far ahead of the next marketing automation tool, Salesforce Marketing Cloud Account Engagement, at 1.54%. On the commerce side, Shopify is on 11.33% and WooCommerce on 7.94%.

Consent tooling is the quieter signal. CookieYes appears on 6.4% of Hotjar domains, Cookie Control on 4.5%, Cookiebot on 3.9% and OneTrust on 2.9%. A session recorder is exactly the kind of tag a consent banner has to gate, so those sites already have the plumbing a replacement would need.

Sales Signal: Shopify and WooCommerce stores are where a recorder has a same-day revenue argument. Pitch conversion there, and save the research pitch for the corporate and careers sites.

6. G2 review signals

G2 reviewers praise Hotjar for being intuitive and easy to navigate (12 mentions), for insightful tools (11) and for comprehensive heatmaps (10). Of the five leading complaints, three are about filtering recordings, one is recording limits and slow loading (4 mentions), and one is price as usage grows (3). The pattern fits the size table: a base of small sites that like the tool and hit its limits as traffic grows.

Sales Signal: Lead with filtering. Three separate filtering themes in the top five cons mean reviewers struggle to find the right recording, and a tool with better segmentation can show the difference in one call.

7. Key takeaways

1. Position: 2nd of 34 in Heatmaps & Session Recording at 22.14%, with 371,111 domains, about 7.6 times the 48,532 domains the Crazy Egg profile counts once the same parked lander template is removed.
2. Status: an installed base under new ownership; new Hotjar accounts can't be created and new users go to Contentsquare.
3. Customer archetype: small and self-serve, with 78.30% of matched companies at 50 staff or fewer.
4. Geography: the eight European countries in the top 15 match the United States.
5. Competition: mostly stacked, with 66,858 domains running Hotjar and Clarity together.

8. Sales applications

Outreach angle: "You're running Hotjar on [hostname] through Google Tag Manager. Hotjar sign-ups now go through Contentsquare, so if you're reviewing your recorder this year, here's what a move would involve." The prospect can check the tag in a minute, which makes the opener credible.

Targeting strategy: Filter to companies above 200 employees for a contract motion (18,103 companies), then group by detection hostname so each careers, investor or shop site goes to the team that owns it. Below that line, treat the Advertising Services segment (4.21%) separately, because agencies install tools across client sites.

Competitive angle: The 66,858 Hotjar-plus-Clarity domains have either decided one recorder isn't enough or haven't cleaned up. Either way, they're the shortest conversation in the category.

Every figure here comes from TechnologyChecker.io's October 2026 crawl: 371,111 live Hotjar domains after removing 69,968 parked pages, with 217,427 matched to company records.