Custom Hotjar integration development
Appfront builds custom Hotjar integrations that unlock qualitative behavioural insight: heatmaps, session recordings, on-site surveys and feedback. Using the tracking snippet, the Events API and the Identify API, we pass on custom events and user attributes, link session recordings to users and segments, and combine the insights with your own data. This way, you understand not only what users do, but above all why, set up in a privacy-friendly way.
What is a Hotjar integration?
Hotjar is a product and behaviour analytics platform (part of Contentsquare since 2023) focused on qualitative insight. Where BI tools and web analytics tell you how many visitors, conversions and how much revenue you have, Hotjar shows how and why users behave as they do: heatmaps reveal where people click and scroll, session recordings replay real user sessions, and on-site surveys and feedback widgets capture the voice of the customer at the right moment.
In practice, a custom integration means: placing the tracking snippet correctly in your website or app, sending custom events via the Events API (such as checkout started or plan upgraded), applying user attributes and segments via the Identify API for targeted filtering, triggering surveys based on specific behaviour and, where necessary, using the Hotjar REST API and webhooks server-side to combine qualitative insights with your own data or CRM.
Appfront builds in line with the official Hotjar Events API documentation and privacy-by-design principles. We align events, attributes and data suppression with your actual product and processes, so the integration collects data reliably without capturing sensitive information, and grows with your site or app.
Heatmaps
See at a glance where visitors click, tap and how far they scroll. Click, move and scroll maps make clear which elements attract attention and which parts of your page go unused, so you don't have to guess.
Session recordings
Replay real, anonymised user sessions and see exactly where people hesitate, backtrack or drop off. Ideal for understanding drop-off points in checkout or onboarding, with sensitive fields suppressed.
Surveys & feedback
On-site surveys and feedback widgets capture the voice of the customer at the right moment: on abandonment, after a purchase or on a specific page. Combine what people do with what they say for sharper decisions.
Our development process for Hotjar integrations
We follow a proven methodology that removes uncertainty early and delivers a stable, privacy-friendly integration. From an initial analysis of your site or app, the desired events and the consent situation, through to going live and ongoing management, every step is aimed at an integration that reliably delivers qualitative insights and that your team can understand for itself.
We map out which pages, funnels and behaviours you want to understand, which custom events and user attributes are needed for that, how consent and data suppression should be handled, and which questions you want to answer through surveys.
We design the integration architecture, choose between a client-side snippet and a server-side API, and establish a privacy and error-handling strategy.
Implementation with automated tests, structured logging and monitoring. You see working builds along the way.
Controlled go-live with validation of events and recordings, followed by ongoing management and further development.
What a Hotjar integration delivers in practice
Every Hotjar integration is tailored to your type of product, your funnels and the adjacent systems. Below are the features we most often deliver for organisations using Hotjar to truly understand how their users behave.
Forwarding custom events
Through the Events API, we send meaningful actions through — checkout started, plan upgraded, form submitted. You use these events to filter recordings and heatmaps, and to trigger session capture or surveys at exactly the right moment.
User attributes and segments
With the Identify API, we give Hotjar context about your users — subscription type, plan, role or cohort. This lets you filter and segment recordings and heatmaps precisely, so you can, for example, analyse only the behaviour of trial users or enterprise customers.
Linking recordings to users
By linking identification to your own users, you can quickly find the session recording of a specific customer, for example when handling a support ticket. This connects qualitative behaviour to the right person or account, within the bounds of consent and privacy.
Triggering surveys based on behaviour
Set up surveys and feedback questions that only appear for relevant behaviour — exit intent, repeated back-clicks or after a specific event. This way you ask the right question at the right moment and gather useful answers without disturbing visitors.
Feedback widgets
Always-visible or contextual feedback widgets let visitors leave a comment on a page or element with a single click. We connect incoming feedback to your workflow so product and UX teams can act on it straight away.
Qualitative data alongside your own data
We combine Hotjar insights with your own data or CRM — server-side via the Hotjar REST API and webhooks. This enriches segments with back-end attributes and places the 'why' from Hotjar alongside the figures from your analytics or BI stack.
Typical use cases in practice
A Hotjar integration looks very different from one organisation to the next. We see a number of patterns recur often, and for each we have a working setup with attention to the right events, segmentation and privacy configuration.
E-commerce and CRO
Webshops looking to optimise their checkout and product pages. Heatmaps show where attention lies, session recordings reveal drop-off moments in the funnel, and surveys capture hesitations. Combining these insights with conversion figures lets you purposefully raise your conversion rate. See also our API integrations.
SaaS product teams
Product and growth teams that want to understand onboarding, activation and feature adoption. Through custom events and user attributes you segment behaviour by plan or cohort, see in recordings where new users get stuck, and validate design decisions with real interactions rather than assumptions.
UX research
UX and research teams seeking qualitative evidence for their decisions. Session recordings and surveys complement interviews and usability tests with behaviour at scale, while heatmaps show whether a redesign actually directs attention as intended — a basis for your design roadmap.
Marketing and landing pages
Marketing teams looking to optimise landing pages and campaigns. Scroll and click maps show whether your message and call-to-action receive attention, session recordings show how visitors from adverts behave, and surveys uncover why a page does or does not convert.
Technology we use
We build Hotjar integrations with the official tracking snippet, the Events API and the Identify API, supplemented by the Hotjar REST API and webhooks where server-side scenarios are needed. The precise choice depends on your site or app and your privacy requirements, so that your own team can manage or further develop the implementation.
Why choose Appfront for your Hotjar integration?
Appfront has extensive experience building API integrations for a wide range of organisations in the Netherlands. We always start with a thorough analysis of your existing systems and processes. An integration should not only work technically, but also add practical value to the way you work.
With every integration, we write clear documentation so that your own team, or a future supplier, can understand and manage the integration. No black box, just transparent code and clear agreements on consent, data suppression, monitoring and maintenance.
You work with a dedicated point of contact who understands both the technical and the functional side. This keeps communication short, prevents misunderstandings and speeds up decisions when choices need to be made during development.
See also our wider services around API integrations, middleware, custom software and web app development. For quantitative metrics alongside Hotjar, we also integrate Google Analytics and Matomo.
- Experience with the Hotjar Events API, Identify API and tracking snippet
- Specialists in behavioural analytics: heatmaps, session recordings and surveys
- Familiar with segmentation based on events and user attributes
- Privacy by design: data suppression, consent integration, data minimisation
- Structured error handling and retry mechanisms
- Comprehensive logging and monitoring from day one
- Clear documentation your team can read and manage
- A fixed point of contact, no account managers passed around
- Ongoing maintenance and proactive further development
- A way of working aligned with your existing IT landscape
Security and privacy in Hotjar integrations
Session recordings, heatmaps and feedback can contain personal data: what a visitor types, clicks or enters is sensitive information. Appfront therefore builds with privacy by design and in line with the OWASP ASVS. This includes data suppression of sensitive fields such as passwords, payment details and personal identifiers, consent-driven activation via your cookie banner, and API tokens stored in secure vaults with scoped permissions.
Session recordings are personal data under the GDPR. We set up data minimisation and retention periods correctly, suppress input fields by default and document the data flows so that your record of processing activities is complete and you can demonstrably comply with the GDPR. This way you gain qualitative insight without unnecessary risk.
More on our security approach: information security policy and CVD policy.
- GDPR-compliant data processing and data minimisation
- Data suppression of sensitive fields in recordings
- Consent-driven activation via your cookie banner
- Encryption in transit (TLS 1.2+) and at rest
- Role-based access and least-privilege principles
- Monitoring and alerting for anomalies
- Secrets management in line with best practice
- Documentation for your record of processing activities
Frequently asked questions about Hotjar integrations
Answers to the questions we most often receive about Hotjar implementations.
A Hotjar integration is a technical link between Hotjar and your own website or app. Hotjar is a product and behaviour analytics platform with heatmaps, session recordings, on-site surveys and feedback widgets. In an integration, we send custom events via the tracking snippet and the Events API (such as checkout started or plan upgraded), apply user attributes for segmentation via the Identify API, and connect qualitative insights to your own data or CRM. This way, you see not only what is happening, but also why users behave the way they do.
Hotjar provides qualitative insight: heatmaps, session recordings and surveys show how and why users behave on your site or app. Google Analytics 4 and BI tools such as Looker, Power BI or Matomo provide quantitative figures: how many visitors, conversions, revenue and trends. The tools complement each other and are often used side by side. We integrate Hotjar for the why, and refer you to our pages on Google Analytics, Power BI or Matomo for the numbers.
A basic implementation (correctly placing the tracking snippet, sending a few custom events and setting up session recordings) is usually quick to go live. More complex scenarios, such as deep Events and Identify integration, segmentation based on user attributes, surveys triggered by specific behaviour, and combining qualitative data with your own back end or CRM, take more work. After an intake meeting, we give you a realistic estimate.
We work with the official Hotjar tracking snippet, the Events API and the Identify API for user attributes, and where needed the Hotjar REST API and webhooks for server-side scenarios. Authentication runs via your Hotjar API token. We build the integration in the back-end stack that suits you (Node.js, Python or JavaScript), and we set up data suppression so that sensitive fields do not end up in session recordings.
The cost depends on the complexity of the data flows, the number of events and user attributes you want to pass on, whether server-side identification is needed, and how much custom work goes into combining qualitative data with your own systems. Ongoing maintenance, monitoring and privacy setup also play a part. We always provide a clear quote after a no-obligation analysis of your situation.
Yes, provided it is set up carefully. Session recordings and feedback can contain personal data, so we work privacy by design: suppressing sensitive fields (such as passwords, payment details and personal identifiers), consent-driven activation via your cookie banner, data minimisation and clear agreements on retention periods. Appfront builds according to OWASP guidelines, stores API tokens in secure vaults and documents the data flows so that your record of processing activities remains complete and you can demonstrably comply with the GDPR.
Yes. Appfront regularly takes over existing Hotjar implementations, even when they were originally set up by another party. We review the snippet placement, the event and attribute configuration, the consent integration and the data suppression, document the current setup and propose improvements. From that point on, we can handle adjustments, extensions and monitoring.
Hotjar suits product, UX, CRO and marketing teams that want to understand how users behave, including e-commerce and webshops, SaaS products, and organisations looking to optimise their landing pages and funnels. Typical use cases include analysing heatmaps of product pages, spotting drop-off points in the checkout through session recordings, triggering surveys when users show signs of hesitation, and combining qualitative insights with conversion figures from GA4 or a BI tool. For purely quantitative reporting, we can work with you to determine whether an analytics or BI tool is a better fit.
Ready to build your Hotjar integration?
Tell us which behaviour you want to understand and which site, app or CRM Hotjar should connect to. We're happy to help you think through events, user attributes, surveys and a privacy-friendly setup. A no-obligation first conversation gives you a clear picture of what's possible within half an hour.