OptiMonk
OptiMonk is a popup and onsite personalization tool used to increase conversions. It displays popups, embedded messages and personalized content, and runs segmentation and A/B testing to tailor what each visitor sees. To do this it sets cookies and runs scripts that track visitors, assign them to segments and record test variants, so it is not strictly necessary for the website to function.
What does OptiMonk do?
What OptiMonk is
OptiMonk is a conversion and onsite personalization tool from a Hungarian vendor. Site owners use it to display popups, embedded messages and tailored content, and to run segmentation and A/B testing so different visitors see different experiences. To target and measure these messages, OptiMonk loads a script that sets cookies and tracks visitor behaviour on the pages where it runs.
Data and cookies collected
OptiMonk sets cookies, often prefixed optiMonk, and uses local storage to identify returning visitors, remember which campaigns they have seen, assign them to segments and keep them in a consistent A/B test variant. It processes online identifiers and behavioural data, and when a visitor submits a form it collects the email address and other data entered. Combined, this is personal data under the GDPR.
GDPR and ePrivacy implications
The cookies OptiMonk sets for personalization, segmentation, testing and measurement are not strictly necessary to deliver the website, so under the ePrivacy Directive and national rules such as PECR they require prior consent before they are stored or read. The website owner is the data controller and OptiMonk acts as a processor. The segmentation and testing also amount to profiling, which should be explained transparently.
Consent and data transfers
You must obtain freely given, specific and informed consent through a consent banner before the OptiMonk script and its cookies load, and visitors must be able to refuse and to withdraw consent easily. OptiMonk is a Hungarian vendor and processes data primarily within the European Union, which avoids a general third country transfer. You should still review its list of sub processors, as some hosting or analytics providers may operate outside the EU and would then need appropriate safeguards.
Practical compliance steps
Sign a data processing agreement with OptiMonk, block its script until consent is given through your consent management platform, and explain the personalization and profiling in your privacy notice. List the OptiMonk cookies in your cookie policy with their purpose and duration, review the sub processor list, set retention periods, and give visitors an easy way to withdraw consent and to exercise their data subject rights.
OptiMonk and the GDPR
OptiMonk is classified as “Preferences”. On a site that targets European visitors, it must only load after the visitor consents, and it must be listed in your cookie policy.
- Legal basis
- Consent (Article 6(1)(a) GDPR) for non essential popup, personalization and analytics cookies; ePrivacy consent for storing and reading information on the device.
- Risk level
- medium
- Applicable regulations
- GDPR, ePrivacy Directive, PECR
Impact assessment (DPIA)
A full DPIA is not usually mandatory for standard popups and onsite personalization, but a documented assessment is recommended. Consider the segmentation and A/B testing that profile visitors, the scale of tracking and the sub processors OptiMonk uses. Processing is primarily in the EU, which lowers transfer risk, but check whether any sub processor operates outside the EU.
Sample text for your banner
We use OptiMonk to show popups and personalized content. OptiMonk sets cookies to recognise you, assign you to audience segments and run tests. These cookies run only after you accept marketing cookies, and you can withdraw your consent at any time.
What OptiMonk sets and contacts
- Tracking method
- First and third party cookies plus JavaScript for popup display, visitor segmentation, A/B testing and onsite personalization
- Server location
- European Union (Hungary)
Cookies set (3)
| Name | Type | Duration | Purpose |
|---|---|---|---|
| optiMonkVisitor | Functionality | 1 year | Identifies returning visitors and stores which campaigns they have already seen. |
| optiMonkClient | Marketing | 1 year | Assigns the visitor to audience segments and keeps them in a consistent A/B test variant. |
| optimonk_session | Functionality | Session | Maintains session state for the OptiMonk widget during the visit. |
Third-party domains contacted (3)
optimonk.comonsite.optimonk.comapi.optimonk.com
Frequently asked questions about OptiMonk
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What cookies does OptiMonk set?
OptiMonk sets first and third party cookies, often prefixed optiMonk, and uses local storage to identify returning visitors, remember which campaigns they have seen, assign them to segments and keep them in a consistent A/B test variant. These are functionality and marketing cookies rather than strictly necessary ones.
Do I need consent to use OptiMonk?
Yes. The cookies OptiMonk uses for personalization, segmentation, testing and measurement are not strictly necessary, so you need prior consent before its script and cookies load on a visitor's device.
What is the legal basis for OptiMonk?
The legal basis is consent under Article 6(1)(a) of the GDPR, combined with ePrivacy consent for storing and reading information on the device. Because the segmentation and testing amount to profiling, consent is the appropriate basis rather than legitimate interest.
Does OptiMonk transfer data to the United States?
OptiMonk is a Hungarian vendor and processes data primarily within the European Union, so there is generally no third country transfer. You should still review its sub processor list, as some hosting or analytics providers may operate outside the EU and would then need appropriate safeguards.
Do I need a DPIA for OptiMonk?
A full DPIA is not usually mandatory for standard popups and onsite personalization. A documented assessment is recommended because the segmentation and A/B testing profile visitors, and you should record the scale of tracking and the sub processors involved.
How do I implement OptiMonk compliantly?
Sign a data processing agreement, block the OptiMonk script until the visitor consents through your consent management platform, explain the personalization and profiling in your privacy notice, list the cookies in your cookie policy and give visitors an easy way to withdraw consent.
What are the alternatives to OptiMonk?
Alternatives include other popup and personalization tools such as Hello Bar, Sleeknote, Privy, Sumo or Dynamic Yield. Any alternative that sets non essential cookies or profiles visitors raises the same consent questions, so assess each on its data practices and where it processes data.
How should I update my cookie policy for OptiMonk?
List each OptiMonk cookie with its name, purpose and duration, classify them as functionality or marketing cookies, name OptiMonk as the processor, note that processing is primarily in the EU, and explain how visitors can manage or withdraw consent.
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