Calls to action and forms that fit each funnel stage

A call to action should ask for the next step the reader is ready to take. On TOFU (top of funnel) pages, that is usually another article, a checklist, a self-test or a free audit. On MOFU (middle of funnel) pages, it is a comparison, a cost guide, a calculator or a short consultation. On BOFU (bottom of funnel) pages, it is the form, the phone number and the booking link, placed where nobody has to hunt for them.

The common failure is not a weak button. It is a guide with no lead path at all, or one that asks a reader who is still learning to "book now." Match the ask to the stage, keep forms as short as the job allows, and track every lead in GA4 as a key event so you can see which stages produce them.

Calls to action by stage

The pattern below is the one we use on funnel guides. TOFU pages offer the next read or a low-commitment tool; BOFU pages carry the form, phone and booking.

Every page still needs a route to contact. A reader who arrives on a TOFU article may already be ready, so the form or phone number should be reachable from every page, for example in the header or a short block at the end. The difference is which call to action leads.

TOFU: offer the next read or a low-commitment tool

A reader learning what a condition, a regulation or a service is rarely wants to talk to sales. What helps is the next useful page or a tool that gives them something for their situation:

• Next read. A "next" link to a MOFU article, such as a comparison or a cost guide. This is the default call to action on a TOFU page.
• Checklist. A one-page list the reader can use, such as "documents to gather before your first tax consultation."
• Self-test. A short set of questions that helps a reader decide whether to seek help. On health topics, label it clearly as a screening aid, not a diagnosis, and have a clinician review it.
• Free audit or review. Common in B2B and agency work. Say exactly what the reader will get back.

A downloadable checklist behind an email form is a lead, but a weak one. Count it separately from contact requests so it doesn't inflate your lead numbers. Why TOFU pages so often produce traffic and no leads is covered in why top-of-funnel content gets traffic but not leads.

MOFU: comparisons, calculators and consultations

A MOFU reader is weighing options. The call to action should help them compare, then offer a conversation for readers who want one:

• A link to the comparison or cost page that answers the question they'll have next. Honest cost pages are covered in pricing and cost pages.
• A calculator, if you can build one with assumptions you're willing to show. Label inputs and say what the result is not, for example "an estimate, not a quote."
• A short consultation or "ask a question" form, positioned as help choosing, not a sales pitch.

Don't gate the core comparison. If the page promises to compare two options, the comparison belongs on the page. Gating it behind a form tells the reader the page was a teaser.

BOFU: form, phone and booking, easy to find

BOFU pages are where the guide turns into leads. A reader here knows what they want and is checking whether you can provide it. Make the next step obvious:

1. Put the form, phone number and booking link near the top and again at the end.
2. Say what happens after they submit: who replies, how, and roughly when, if you can commit to it.
3. Show the facts that decide a booking: location or service area, hours, insurance or payment options, and who does the work.
4. Offer a call-back option for people who would rather not call during work hours.
5. On mobile, make the phone number a tap-to-call link and keep the form usable with a thumb.

On one telehealth practice, a funnel audit found the guide had no lead path at all: readers could finish any article without a form, a call-back option or a clear link to book. We added a call-back form and a call to action in each chapter. That is a structural fix, and we cite it here as an example of what to check, not as a result.

How long should forms be?

There is no correct length, and published averages rarely fit your business. A practical rule is to ask for what you need to respond well, and nothing else:

Each extra field should earn its place. If no one reads the "how did you hear about us" answer, remove it. If staff always ask for a ZIP code before quoting, add it so the first reply can be useful. On health, legal and financial sites, think twice before asking for details about a condition or case in a web form, and ask your compliance adviser what the form may collect. For page-level conversion issues, our guide to landing page mistakes covers layout and copy, and what conversion rate optimization is explains how to test changes.

Track leads as GA4 key events

If you can't see which pages produce leads, you can't tell which stages work. In GA4, an important action is a key event. Google renamed conversions to key events on March 27, 2024, and defines one as "an event that measures an action that's particularly important to the success of your business."

For lead forms, Google's recommended lead-generation events start with generate_lead, sent when a visitor "submits a form online or submits information offline." Later stages use qualify_lead, working_lead and close_convert_lead, among others. Those later events aren't collected automatically; they usually come from your CRM.

1. Send generate_lead on each successful form submission. Google says value "is typically required for meaningful reporting" and currency "is required if you set value."
2. Set up separate events, or a parameter, for phone taps, booking clicks and downloads, so you can tell a checklist download from a quote request.
3. Mark the events that matter as key events. Google's steps: in Admin, under Data display, click Events and click the star next to the event. Standard properties can mark up to 30 key events.
4. Remember that marking "doesn't change historic data," so do it before launch, not after.

Google says sending these events populates GA4's Lead acquisition report, under Reports, Acquisition. On one clinic we built, leads were also tracked by condition, which shows which topics bring inquiries, not just visits.

Tag pages by stage with content groups

GA4 has no TOFU, MOFU or BOFU dimension. The native way to group pages is a content group. Google's content groups help page says they "let you categorize pages and screens into custom buckets." You set the content_group parameter in your Google tag configuration, or with a RegEx Table variable on page path in Google Tag Manager, and then "select the Content group dimension in the Pages and screens report or add the dimension in an exploration."

Using content groups for funnel stage is our application, not a Google recommendation. The idea is simple: tag each page Learn, Compare or Decide, then compare key events by group. Keep a few limits in mind:

• Explorations look back only as far as your data retention setting. The default is 2 months; standard properties can be set to 14. Change it early.
• GA4's "Conversion attribution analysis report," which splits touchpoints into Early, Mid and Late stages, was added January 16, 2026 as a Beta and may not be available on your property.
• The AI Assistant channel counts referred visits from assistants such as ChatGPT and Gemini and excludes Google's AI Overviews and AI Mode, which sit in Organic Search. Our article on the GA4 AI Assistant channel explains what it misses.

Healthcare sites: check tracking rules first

HIPAA-related rules on the use of online tracking technologies exist, and the Department of Health and Human Services (HHS) has issued guidance on them. Part of HHS's guidance was vacated by a federal court in June 2024. Confirm the current status with your counsel before adding analytics, ad pixels or form tracking to a health site. This is not legal advice. How healthcare funnels differ more broadly is in how the content funnel differs by business type.

Conclusion

A funnel guide earns leads when every page offers a next step the reader is ready for, BOFU pages make contact easy, forms ask only what you need, and every lead is tracked as a key event by stage. Nobody can promise a number of leads from a number of pages, but a guide without a lead path gives ready readers no easy way to get in touch. For the full build, see how we build funnel content for SEO, AEO and GEO, or ask about our CRO and SEO work. More guides are in our GEO and AEO Guide.

Frequently asked questions