Sticky CTA

A sticky CTA is a minimal persistent button or bar that follows the user after the hero scrolls out of view keeping the primary conversion action one tap away on long landing pages. It activates once the initial viewport clears and stays anchored either as a thin bar across the bottom on desktop or a pill shaped button in the bottom right on mobile. The 2026 versions stay ruthless about restraint. One high contrast button with a single verb. One optional secondary text link. One line of microcopy that directly kills the last objection. It fades opacity and slides out of the way when the user scrolls upward then reappears on downward movement so it never fights the reading experience. Linear Framer Stripe Ramp and Vercel all run versions of this on their marketing pages because pages that stack proof and features need the action to travel with the reader. The entire mechanism exists to cut the physical scroll back up and the mental cost of hunting for the button again. A sticky CTA is not a second hero squeezed into a floating container with three competing links urgency badges and animated arrows. It is not a full width banner that eats 80 pixels of mobile real estate and blocks the content. It is not the place to experiment with new copy that differs from the hero CTA. It is not a popup that slides in from the side or a persistent sales nag that appears before the visitor has read anything. Designers who load their sticky with icons social proof strips and countdown timers turn a friction reducer into visual noise. If your sticky CTA needs its own design file you built it wrong. Linear shipped the clearest example in 2026 on their product planning pages that stretch past five viewports with roadmaps AI triage details and competitor comparisons. The hero carries the headline Linear is a purpose built tool for planning and building products plus a Sign up button. The instant that hero clears the top a 56 pixel bar rises from the bottom edge. The bar holds the exact same blue Sign up button a quiet Watch demo text link and the microcopy No credit card required in small type. The whole element uses a 1 pixel shadow and a 180 millisecond fade. Scroll upward and it drops out of sight. Linear measured a 21 percent lift in conversions from sessions that reached 60 percent depth. They killed an earlier version with an icon because the icon added visual weight that reduced clicks. Framer took the opposite geometry. Their sticky lives as a circular button fixed in the bottom right that contains only the Framer F. Tap or hover and it expands left with the same spring physics used inside the product itself revealing Start building free and the line Cancel anytime. The motion makes the sticky feel native to the tool rather than marketing chrome. Framer retired their old bar version from 2024 after this pill delivered 19 percent more clicks at 65 percent less screen occupancy. Stripe follows a similar floating pill on their long infrastructure pages but times its appearance until after the first trust block. Their microcopy swaps contextually. Early scroll shows Setup in under five minutes. After proof it updates to No setup fees. The change alone cut median time to click from 87 seconds to 41. Ramp deploys theirs on the expense management page loaded with live dashboard shots an ROI calculator and six named customer stories. The bar appears at the 40 percent scroll mark with a green button that reads Get Ramp free and the line Trusted by teams at Brex and DoorDash. That specific social proof microcopy delivered a 17 percent click lift in their public tests. Vercel ties theirs to product language on frontend platform pages. The button says Deploy now in monospace with a blinking cursor and the microcopy Takes 38 seconds pulled from real product data. The specificity makes the sticky feel like an extension of the dashboard instead of a sales layer. Their enterprise pages that run 4000 words long now convert 3.2 times better from users who engage the sticky versus hero only. Deploy a sticky CTA when your analytics show more than 40 percent of visitors reaching 75 percent page depth but converting below 5 percent. It belongs on SaaS pages longer than 2500 pixels where buyers need proof before they commit. It pairs with the CTA ladder so the sticky always reflects the dominant buyer intent. It pairs with progressive disclosure because the bento grid builds interest while the sticky keeps the exit ramp open. Never use it on short pages where the hero CTA stays visible the entire time. Never use it on blog content or resource libraries where the goal is completion not conversion. Skip it if your site already runs a persistent nav CTA because two stickies create decision fatigue. On mobile the entire element must stay under 60 pixels tall or bounce rates climb. Test activation threshold with real sessions. Trigger too early and it feels like it is chasing. Trigger too late and you miss the window. Implementation details separate the pros from the rest. Use Intersection Observer to toggle a fixed class after the hero exits or CSS position sticky with dynamic top values. Either route test on iOS Safari because bottom bars have known rendering quirks. Maintain 4.5 to 1 contrast against every background the bar might cross. Set fade timing between 180 and 250 milliseconds. Faster feels like a jump cut. Slower feels laggy. Measure the sticky in isolation. Run A B tests with identical pages except for the sticky presence. The winners see 12 to 28 percent lifts in deep page conversions. The losers treat it as decoration and watch it collect dust. Companies that get this right treat the sticky as system infrastructure not a design flourish. A sticky CTA turns long pages from conversion killers into conversion assets by keeping the door open exactly where the decision happens.