How to Use Hello Bar to Grow an Email List From Blog Traffic

The short answer: for a blog whose signup bar will be seen fewer than 50,000 times a month, Growth at $29 a month billed annually is the plan to run this on, because the free plan's 5,000 views are a lifetime allowance (pricing page, checked on 26 October 2026); install the snippet, build a top bar and an exit-intent modal, target them to the posts that earn signups, switch on consent, send every address to your email tool, let the A/B test pick a headline, have a Zapier agent sort new signups for a person to review, and read the results in GA4.

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Readers who enjoy a post and leave without a way to hear from you again are the cheapest audience you will ever lose. A bar at the top of the post and a modal when they reach for the tab are the two placements this guide builds, with Hello Bar's help centre as the source for every step. For what the product includes and costs, see the Hello Bar glossary entry.

What to have ready:

• A view budget. For example, 20 posts at 3,000 pageviews a month each is 20 x 3,000 = 60,000 views if the bar shows on all of them, over Growth's 50,000; showing it on the 12 posts that earn the most signups is 36,000.
• Access to the site. On WordPress, the official plugin and your site snippet; elsewhere, the snippet in the page code (WordPress install guide).
• A list in your email tool, or a webhook URL from it that accepts name and email (webhook guide).
• Your privacy policy URL, because the consent toggle asks for it before it switches on (GDPR article).
• A baseline. Signups per week from the forms you already have, over the last four full weeks.

1. Install the snippet

Copy the site snippet from the Install page of the Hello Bar dashboard. In WordPress, go to Plugins, then Add New, search for Hello Bar, install and activate the official plugin, paste the snippet into its field and click Activate Hello Bar, as the WordPress guide describes. If a caching plugin such as WP Rocket runs on the site, clear its cache, then your browser's, or you will be looking at yesterday's page.

2. Build the top bar

Click Create New Popup. On your first login Hello Bar asks for the goal, the type and the design in turn (create guide); choose the email collection goal and the bar type, which sits in the header or footer and scrolls with the reader (format list). Keep the copy to one promise and one field.

3. Add a modal for readers on their way out

Create a second popup with the same goal, this time a modal. In the editor's Settings tab, under When does it display?, choose Exit intent (user begins to leave your site), then click Publish (exit-intent guide). The bar asks politely while they read. The modal asks once more at the door.

4. Point both at the posts that earn signups

In the Targeting menu, click Create New Targeting Rule. Rules can match pages, previous page URL, cookies and the number of visits, so the modal can wait for a reader's second visit (visits rule); country, region and city rules work on the paid plans (geo guide).

5. Ask for consent properly

Under Settings, open the Privacy tab and add the URLs of your privacy policy and terms. Then, in each popup's Settings tab, switch GDPR Compliant to on and click Save & Publish; the visitor sees a consent step after pressing submit, and the setting has to be switched on popup by popup (GDPR article). The GDPR defines consent as a clear affirmative act that is freely given, specific, informed and unambiguous, in Article 4(11) of the regulation on EUR-Lex, and Recital 32 of the same text adds that a pre-ticked box does not count.

6. Send each address to your email tool

Go to Contacts, click New Contact List, name it and click Show All Tools. Pick your provider, or choose Webhooks, select POST or GET, paste the URL, click Send Test Request to see the data as your endpoint receives it, then Connect (webhook guide). Hello Bar sends no welcome email of its own, so build that in your provider (export guide). Ticking the option to email account admins on each new lead tells you on day one whether the pipe works (notification article).

7. Let the A/B test pick the headline

In Manage, click the gear beside the modal and choose A/B Test. Hello Bar opens a duplicate; change the content, the colours or the timing, and nothing else, or it stops counting as a test. Once each version has 1,000 views, the better converter gets 90% of views and a random version the other 10%, according to the A/B article. A/B testing is not available on Starter (plan table).

8. Have an agent sort the new signups

Hello Bar's app on Zapier has one trigger, New Subscriber (Zapier app page). Connect it, then choose the site and a contact list; only lists not already attached to an email provider or another Zap show up in the dropdown (Zapier guide), so give this Zap its own list and add a step that passes each address on to your provider.

Then add an AI by Zapier step, which takes a prompt, input fields and the output fields you define (Zapier help article, which also lists the Zapier plans that include it). Give it the email address and ask for two outputs: company address or personal address, and one line of reasoning. Write both to a Google Sheet. The human check: once a week, someone reads the company-address rows before anyone in sales gets in touch with them, because the agent writes to a sheet and nothing else. A subscriber who asked for a newsletter did not ask for a sales call.

9. Read what it did

The Summary tab shows views and emails collected over any date range, with a download, and the graph icon in Manage opens each popup's own figures (performance guide). To see them in GA4, create a Google Tag Manager tag on a Custom Event trigger named HelloBarEvent, with an Action parameter for views and conversions and a Label parameter for the popup ID (GA4 guide).

Then compare four full weeks after launch with the four-week baseline you took before, so a single viral post does not make the decision for you.

Where Hello Bar's help centre says this goes wrong

• A cached page. Both the install and the exit-intent guides say to clear caches before deciding that a popup is missing.
• An A/B test that quietly stopped being one. Editing anything beyond content, colours and timing breaks the pairing (A/B article).
• Consent on one popup only. The GDPR toggle does not carry across popups.
• A free plan that runs dry. Past 5,000 views, Starter switches popups off until you upgrade (support article).
• A list Zapier cannot see. It is already attached to a provider.

Hello Bar bills every view of every popup, so the easy setup, a bar on every page, turns your traffic into its overage revenue at $5 per 5,000 views past the plan (overage breakdown); the targeting in step 4 is how that money stays with you.

FAQ

Can the free plan run this setup?

Partly. Starter builds unlimited popups, but it has no A/B testing and stops after 5,000 views in total, per the plan table.

Why doesn't my contact list appear in Zapier?

It is attached to an email provider or to another Zap. The Zapier guide lists only unattached lists, so create a fresh one for the Zap.

Can I see Hello Bar conversions in Google Analytics?

Yes, through Google Tag Manager: a Custom Event trigger on HelloBarEvent passes views and conversions to GA4 with the popup ID as the label (GA4 guide).