Components: Newsletter Signup

Guides newsletter signup form design for list growth. Email subscribers spend 138% more than non-subscribers; top popups convert at 23%+.

When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.

Initial Assessment

Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for audience and value proposition.

Identify:

Placement: Header, footer, popup, inline, sidebar
Incentive: What subscribers receive
Platform: Web, mobile, both

Form Design

Minimal Fields

Email only when possible; highest conversion
Add name only if needed for personalization
Wrong number of fields significantly impacts conversion

Value Proposition

Clear: what subscribers receive, how often
Transparent: avoid disappointing subscribers
Incentive: lead magnet, discount, exclusive content

Visual Design

Clearly clickable submit button
Mobile-first; responsive layout
Appropriate input types (e.g., type="email" for mobile keyboards)
Trust marks or security indicators

Placement

| Placement | Best For | Pros | Cons | |-----------|----------|------|------| | Header | High visibility | Always visible | Limited space | | Footer | Secondary capture | Non-intrusive | Lower visibility | | Footer bar | Persistent | Sticky | Can annoy | | Popup | High intent | High conversion | Intrusive | | Inline | Content pages | Contextual | Depends on scroll |

Avoid hiding forms behind unclicked buttons/links
Don't place competing forms nearby

Accessibility

| Requirement | Practice | |-------------|----------| | Labels | <label> for each input; for/id association | | Placeholders | Don't replace labels; supplement only | | Error messages | Clear, associated with field | | Keyboard | Full tab order; submit via Enter | | Touch targets | ≥44×44px for submit button |

Technical

Validation: Client-side; server-side required
Privacy: Link to privacy policy; GDPR/CCPA compliance
Double opt-in: When required by jurisdiction or best practice

Output Format

Form structure (fields, copy)
Placement recommendation
Value proposition suggestions
Accessibility checklist

Related Skills

signup-login-page-generator: Full account signup; form design principles apply
landing-page-generator: Lead capture landing page contains signup form; LP exchanges value for email
email-marketing: Full email marketing strategy; EDM, newsletter, deliverability, content types
footer-generator: Footer often hosts signup forms
cta-generator: Submit button is a CTA
trust-badges-generator: Trust marks near form