Overview
Hello Bar is a conversion optimization tool that displays attention-grabbing notification bars, modal popups, slide-in panels, and full-page takeovers on websites. The platform is designed to capture email addresses, promote offers, and direct visitors to specific pages. Hello Bar uses A/B testing and targeting rules based on visitor attributes such as referral source, device type, and visit frequency.
What This Script Does
Hello Bar's script loads from my.hellobar.com and fetches the site's configuration to determine which notification variant to display. The script evaluates targeting rules — checking referral source, page URL, visitor cookie state, and device type — to select the appropriate bar, popup, or modal design.
The script sets cookies (typically HB_ prefixed) to track several states: whether the visitor has seen a particular notification, whether they dismissed it, how many times they've visited the site, and whether they've previously converted (submitted their email). These cookies control display frequency capping and prevent showing notifications to visitors who have already engaged.
When a visitor submits their email through a Hello Bar form, the data is sent to Hello Bar's servers and optionally forwarded to integrated email marketing platforms (Mailchimp, ConvertKit, etc.). The script tracks impression counts, click-through rates, and conversion rates for each notification variant, transmitting performance data to Hello Bar's analytics backend.
Hello Bar also collects visitor metadata including referrer URL, browser information, and geographic region to power its targeting and reporting features.
Consent & Compliance
Hello Bar is a marketing tool. Its notification bars and popups exist to capture leads and drive marketing conversions. The cookies it sets — while partly used for UX purposes like preventing repeat displays — primarily serve the marketing function of optimizing lead capture campaigns.
Under GDPR and the ePrivacy Directive, Hello Bar's tracking cookies and email collection forms require prior consent. The A/B testing functionality and visitor metadata collection for targeting compound the consent requirement. Under CCPA, the collection of email addresses and behavioral data for marketing purposes requires disclosure and opt-out rights.
The consent category is marketing.
Should You Block This Without Consent?
Yes. Hello Bar's entire purpose is marketing-oriented lead capture and conversion optimization. Its scripts set tracking cookies, collect visitor behavioral data for targeting, and display promotional content designed to harvest email addresses. All of these activities require prior consent. Blocking Hello Bar without consent removes promotional overlays but does not affect the website's core content or functionality.
Is Hello Bar GDPR compliant?
Hello Bar typically loads marketing trackers, which are not strictly necessary for your site to work. Under the GDPR and the ePrivacy Directive, non-essential cookies and trackers must stay blocked until a visitor gives clear opt-in consent. So Hello Bar can be fully GDPR compliant, but only if your site holds its scripts until consent is granted and lets visitors decline just as easily. Compliance depends on how your site loads Hello Bar, not on Hello Bar itself.
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Manage consent for Hello Bar
ConsentStack automatically detects and manages Hello Bar trackers so your site stays compliant with global privacy regulations.