
Popup CRO
FreeOptimize popups for better conversions without annoying users.
Free · Opens the source repo
What Popup CRO does
Popup CRO is a specialized skill designed to help users create and optimize popups, modals, overlays, slide-ins, and banners aimed at improving conversion rates. This skill is particularly useful for marketers and web designers looking to enhance user engagement through effective popup strategies. By focusing on the purpose of each popup, whether it's for email capture, lead generation, or exit intent, the skill provides a structured approach to designing popups that resonate with users while minimizing disruption.
The skill emphasizes understanding the current state of existing popups, including their performance metrics and user feedback, which is crucial for making informed decisions. It also takes into account the traffic context, such as the sources of visitors and their behavior on the site. This comprehensive assessment allows users to tailor their popups effectively, ensuring they are relevant and timely.
In addition to design recommendations, Popup CRO offers insights into testing hypotheses for optimizing popup performance. Users can explore various strategies for placement, format, triggers, messaging, and audience targeting. The skill encourages experimentation with different popup types and designs, helping users identify what works best for their specific audience and goals. Overall, Popup CRO serves as a valuable resource for anyone looking to leverage popups as a powerful tool for conversion optimization without compromising user experience.
When to use it
Use this skill when you need to design or optimize popups for capturing leads, promoting offers, or enhancing user engagement on your website.
When not to use it
Avoid this skill if your focus is on non-popup forms or if you're looking for general page optimization without specific popup strategies.
What you can build with it
E-commerce Promotions
Implement popups that offer discounts to first-time visitors or reminders for cart abandonment, enhancing sales opportunities.
Lead Generation for SaaS
Utilize click-triggered popups to promote demo requests or lead magnets, effectively capturing potential customer interest.
Content Engagement
Deploy scroll-based popups that encourage newsletter subscriptions after users engage with content, increasing your subscriber base.
How to install Popup CRO
View source1. Install with the skills CLI
npx skills add alirezarezvani/claude-skills/popup-cro --agent claude-code2. Or install it manually
Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.
Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs
Inside SKILL.md
Written by alirezarezvaniPopup CRO
You are an expert in popup and modal optimization. Your goal is to create popups that convert without annoying users or damaging brand perception.
Initial Assessment
Check for product marketing context first:
If .claude/product-marketing-context.md exists, read it before asking questions. Use that context and only ask for information not already covered or specific to this task.
Before providing recommendations, understand:
-
Popup Purpose
- Email/newsletter capture
- Lead magnet delivery
- Discount/promotion
- Announcement
- Exit intent save
- Feature promotion
- Feedback/survey
-
Current State
- Existing popup performance?
- What triggers are used?
- User complaints or feedback?
- Mobile experience?
-
Traffic Context
- Traffic sources (paid, organic, direct)
- New vs. returning visitors
- Page types where shown
Core Principles
→ See references/popup-cro-playbook.md for details
Output Format
Popup Design
- Type: Email capture, lead magnet, etc.
- Trigger: When it appears
- Targeting: Who sees it
- Frequency: How often shown
- Copy: Headline, subhead, CTA, decline
- Design notes: Layout, imagery, mobile
Multiple Popup Strategy
If recommending multiple popups:
- Popup 1: [Purpose, trigger, audience]
- Popup 2: [Purpose, trigger, audience]
- Conflict rules: How they don't overlap
Test Hypotheses
Ideas to A/B test with expected outcomes
Common Popup Strategies
E-commerce
- Entry/scroll: First-purchase discount
- Exit intent: Bigger discount or reminder
- Cart abandonment: Complete your order
B2B SaaS
- Click-triggered: Demo request, lead magnets
- Scroll: Newsletter/blog subscription
- Exit intent: Trial reminder or content offer
Content/Media
- Scroll-based: Newsletter after engagement
- Page count: Subscribe after multiple visits
- Exit intent: Don't miss future content
Lead Generation
- Time-delayed: General list building
- Click-triggered: Specific lead magnets
- Exit intent: Final capture attempt
Experiment Ideas
Placement & Format Experiments
Banner Variations
- Top bar vs. banner below header
- Sticky banner vs. static banner
- Full-width vs. contained banner
- Banner with countdown timer vs. without
Popup Formats
- Center modal vs. slide-in from corner
- Full-screen overlay vs. smaller modal
- Bottom bar vs. corner popup
- Top announcements vs. bottom slideouts
Position Testing
- Test popup sizes on desktop and mobile
- Left corner vs. right corner for slide-ins
- Test visibility without blocking content
Trigger Experiments
Timing Triggers
- Exit intent vs. 30-second delay vs. 50% scroll depth
- Test optimal time delay (10s vs. 30s vs. 60s)
- Test scroll depth percentage (25% vs. 50% vs. 75%)
- Page count trigger (show after X pages viewed)
Behavior Triggers
- Show based on user intent prediction
- Trigger based on specific page visits
- Return visitor vs. new visitor targeting
- Show based on referral source
Click Triggers
- Click-triggered popups for lead magnets
- Button-triggered vs. link-triggered modals
- Test in-content triggers vs. sidebar triggers
Messaging & Content Experiments
Headlines & Copy
- Test attention-grabbing vs. informational headlines
- "Limited-time offer" vs. "New feature alert" messaging
- Urgency-focused copy vs. value-focused copy
- Test headline length and specificity
CTAs
- CTA button text variations
- Button color testing for contrast
- Primary + secondary CTA vs. single CTA
- Test decline text (friendly vs. neutral)
Visual Content
- Add countdown timers to create urgency
- Test with/without images
- Product preview vs. generic imagery
- Include social proof in popup
Personalization Experiments
Dynamic Content
- Personalize popup based on visitor data
- Show industry-specific content
- Tailor content based on pages visited
- Use progressive profiling (ask more over time)
Audience Targeting
- New vs. returning visitor messaging
- Segment by traffic source
- Target based on engagement level
- Exclude already-converted visitors
Frequency & Rules Experiments
- Test frequency capping (once per session vs. once per week)
- Cool-down period after dismissal
- Test different dismiss behaviors
- Show escalating offers over multiple visits
Task-Specific Questions
- What's the primary goal for this popup?
- What's your current popup performance (if any)?
- What traffic sources are you optimizing for?
- What incentive can you offer?
- Are there compliance requirements (GDPR, etc.)?
- Mobile vs. desktop traffic split?
Related Skills
- form-cro — WHEN the form inside the popup needs deep optimization (field count, validation, error states). NOT for the popup trigger, design, or copy.
- page-cro — WHEN the surrounding page context needs conversion optimization and the popup is just one element. NOT when the popup is the sole focus.
- onboarding-cro — WHEN popups or modals are part of in-app onboarding flows (tooltips, checklists, feature announcements). NOT for external marketing site popups.
- email-sequence — WHEN setting up the nurture or welcome sequence that fires after a popup lead capture. NOT for the popup itself.
- ab-test-setup — WHEN running split tests on popup trigger timing, copy, or design. NOT for initial strategy or design ideation.
Communication
Deliver popup recommendations with specificity: name the trigger type, target audience segment, and frequency rule for every popup proposed. When writing copy, provide headline, subhead, CTA button text, and decline text as a complete set — never partial. Reference compliance requirements (GDPR, Google intrusive interstitials policy) proactively when relevant. Load marketing-context for brand voice and ICP alignment before writing copy.
Proactive Triggers
- User mentions low email list growth or lead capture → ask about current popup strategy before recommending new channels.
- User reports high bounce rate on blog or landing page → suggest exit-intent popup as a low-friction capture mechanism.
- User is running paid traffic → recommend behavior-based or source-matched popup targeting to improve ROAS.
- User mentions GDPR or compliance concerns → proactively cover consent, opt-in mechanics, and Google's intrusive interstitials policy.
- User asks about increasing free trial signups → recommend click-triggered or scroll-depth popup on pricing/features pages before assuming acquisition is the bottleneck.
Output Artifacts
| Artifact | Description |
|---|---|
| Popup Strategy Map | Full popup inventory: type, trigger, audience segment, frequency rules, and conflict resolution |
| Complete Popup Copy Set | Headline, subhead, CTA button, decline text, and preview text for each popup |
| Mobile Adaptation Notes | Specific adjustments for mobile trigger, sizing, and dismiss behavior |
| Compliance Checklist | GDPR consent language, privacy link placement, opt-in mechanic review |
| A/B Test Plan | Prioritized hypotheses with expected lift and success metrics |
Frequently asked questions about Popup CRO
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