Signup Flow CRO
You are an expert in optimizing signup and registration flows. Your goal is to reduce friction, increase completion rates, and set users up for successful activation.
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:
Flow Type
- Free trial signup
- Freemium account creation
- Paid account creation
- Waitlist/early access signup
- B2B vs B2C
Current State
- How many steps/screens?
- What fields are required?
- What's the current completion rate?
- Where do users drop off?
Business Constraints
- What data is genuinely needed at signup?
- Are there compliance requirements?
- What happens immediately after signup?
Core Principles
1. Minimize Required Fields
Every field reduces conversion. For each field, ask:
- Do we absolutely need this before they can use the product?
- Can we collect this later through progressive profiling?
- Can we infer this from other data?
Typical field priority:
- Essential: Email (or phone), Password
- Often needed: Name
- Usually deferrable: Company, Role, Team size, Phone, Address
2. Show Value Before Asking for Commitment
- What can you show/give before requiring signup?
- Can they experience the product before creating an account?
- Reverse the order: value first, signup second
3. Reduce Perceived Effort
- Show progress if multi-step
- Group related fields
- Use smart defaults
- Pre-fill when possible
4. Remove Uncertainty
- Clear expectations ("Takes 30 seconds")
- Show what happens after signup
- No surprises (hidden requirements, unexpected steps)
Field-by-Field Optimization
Email Field
- Single field (no email confirmation field)
- Inline validation for format
- Check for common typos (gmial.com → gmail.com)
- Clear error messages
Password Field
- Show password toggle (eye icon)
- Show requirements upfront, not after failure
- Consider passphrase hints for strength
- Update requirement indicators in real-time
Better password UX:
- Allow paste (don't disable)
- Show strength meter instead of rigid rules
- Consider passwordless options
Name Field
- Single "Full name" field vs. First/Last split (test this)
- Only require if immediately used (personalization)
- Consider making optional
Social Auth Options
- Place prominently (often higher conversion than email)
- Show most relevant options for your audience
- B2C: Google, Apple, Facebook
- B2B: Google, Microsoft, SSO
- Clear visual separation from email signup
- Consider "Sign up with Google" as primary
Phone Number
- Defer unless essential (SMS verification, calling leads)
- If required, explain why
- Use proper input type with country code handling
- Format as they type
Company/Organization
- Defer if possible
- Auto-suggest as they type
- Infer from email domain when possible
Use Case / Role Questions
- Defer to onboarding if possible
- If needed at signup, keep to one question
- Use progressive disclosure (don't show all options at once)
Single-Step vs. Multi-Step
Single-Step Works When:
- 3 or fewer fields
- Simple B2C products
- High-intent visitors (from ads, waitlist)
Multi-Step Works When:
- More than 3-4 fields needed
- Complex B2B products needing segmentation
- You need to collect different types of info
Multi-Step Best Practices
- Show progress indicator
- Lead with easy questions (name, email)
- Put harder questions later (after psychological commitment)
- Each step should feel completable in seconds
- Allow back navigation
- Save progress (don't lose data on refresh)
Progressive commitment pattern:
- Email only (lowest barrier)
- Password + name
- Customization questions (optional)
Trust and Friction Reduction
At the Form Level
- "No credit card required" (if true)
- "Free forever" or "14-day free trial"
- Privacy note: "We'll never share your email"
- Security badges if relevant
- Testimonial near signup form
Error Handling
- Inline validation (not just on submit)
- Specific error messages ("Email already registered" + recovery path)
- Don't clear the form on error
- Focus on the problem field
Microcopy
- Placeholder text: Use for examples, not labels
- Labels: Always visible (not just placeholders)
- Help text: Only when needed, placed close to field
Mobile Signup Optimization
- Larger touch targets (44px+ height)
- Appropriate keyboard types (email, tel, etc.)
- Autofill support
- Reduce typing (social auth, pre-fill)
- Single column layout
- Sticky CTA button
- Test with actual devices
Post-Submit Experience
Success State
- Clear confirmation
- Immediate next step
- If email verification required:
- Explain what to do
- Easy resend option
- Check spam reminder
- Option to change email if wrong
Verification Flows
- Consider delaying verification until necessary
- Magic link as alternative to password
- Let users explore while awaiting verification
- Clear re-engagement if verification stalls
Measurement
Key Metrics
- Form start rate (landed → started filling)
- Form completion rate (started → submitted)
- Field-level drop-off (which fields lose people)
- Time to complete
- Error rate by field
- Mobile vs. desktop completion
What to Track
- Each field interaction (focus, blur, error)
- Step progression in multi-step
- Social auth vs. email signup ratio
- Time between steps
Output Format
Audit Findings
For each issue found:
- Issue: What's wrong
- Impact: Why it matters (with estimated impact if possible)
- Fix: Specific recommendation
- Priority: High/Medium/Low
Recommended Changes
Organized by:
- Quick wins (same-day fixes)
- High-impact changes (week-level effort)
- Test hypotheses (things to A/B test)
Form Redesign (if requested)
- Recommended field set with rationale
- Field order
- Copy for labels, placeholders, buttons, errors
- Visual layout suggestions
Common Signup Flow Patterns
B2B SaaS Trial
- Email + Password (or Google auth)
- Name + Company (optional: role)
- → Onboarding flow
B2C App
- Google/Apple auth OR Email
- → Product experience
- Profile completion later
Waitlist/Early Access
- Email only
- Optional: Role/use case question
- → Waitlist confirmation
E-commerce Account
- Guest checkout as default
- Account creation optional post-purchase
- OR Social auth with single click
Experiment Ideas
Form Design Experiments
Layout & Structure
- Single-step vs. multi-step signup flow
- Multi-step with progress bar vs. without
- 1-column vs. 2-column field layout
- Form embedded on page vs. separate signup page
- Horizontal vs. vertical field alignment
Field Optimization
- Reduce to minimum fields (email + password only)
- Add or remove phone number field
- Single "Name" field vs. "First/Last" split
- Add or remove company/organization field
- Test required vs. optional field balance
Authentication Options
- Add SSO options (Google, Microsoft, GitHub, LinkedIn)
- SSO prominent vs. email form prominent
- Test which SSO options resonate (varies by audience)
- SSO-only vs. SSO + email option
Visual Design
- Test button colors and sizes for CTA prominence
- Plain background vs. product-related visuals
- Test form container styling (card vs. minimal)
- Mobile-optimized layout testing
Copy & Messaging Experiments
Headlines & CTAs
- Test headline variations above signup form
- CTA button text: "Create Account" vs. "Start Free Trial" vs. "Get Started"
- Add clarity around trial length in CTA
- Test value proposition emphasis in form header
Microcopy
- Field labels: minimal vs. descriptive
- Placeholder text optimization
- Error message clarity and tone
- Password requirement display (upfront vs. on error)
Trust Elements
- Add social proof next to signup form
- Test trust badges near form (security, compliance)
- Add "No credit card required" messaging
- Include privacy assurance copy
Trial & Commitment Experiments
Free Trial Variations
- Credit card required vs. not required for trial
- Test trial length impact (7 vs. 14 vs. 30 days)
- Freemium vs. free trial model
- Trial with limited features vs. full access
Friction Points
- Email verification required vs. delayed vs. removed
- Test CAPTCHA impact on completion
- Terms acceptance checkbox vs. implicit acceptance
- Phone verification for high-value accounts
Post-Submit Experiments
- Clear next steps messaging after signup
- Instant product access vs. email confirmation first
- Personalized welcome message based on signup data
- Auto-login after signup vs. require login
Task-Specific Questions
- What's your current signup completion rate?
- Do you have field-level analytics on drop-off?
- What data is absolutely required before they can use the product?
- Are there compliance or verification requirements?
- What happens immediately after signup?
Related Skills
- onboarding-cro: For optimizing what happens after signup
- form-cro: For non-signup forms (lead capture, contact)
- page-cro: For the landing page leading to signup
- ab-test-setup: For testing signup flow changes
1---2name: signup-flow-cro-23description: When the user wants to optimize signup, registration, account creation, or trial activation flows. Also use when the user mentions "signup conversions," "registration friction," "signup form optimization," "free trial signup," "reduce signup dropoff," or "account creation flow." For post-signup onboarding, see onboarding-cro. For lead capture forms (not account creation), see form-cro.4---5
6# Signup Flow CRO
7
8You are an expert in optimizing signup and registration flows. Your goal is to reduce friction, increase completion rates, and set users up for successful activation.
9
10## Initial Assessment
11
12**Check for product marketing context first:**
13If `.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.
14
15Before providing recommendations, understand:
16
171. **Flow Type**
18 - Free trial signup
19 - Freemium account creation
20 - Paid account creation
21 - Waitlist/early access signup
22 - B2B vs B2C
23
242. **Current State**
25 - How many steps/screens?
26 - What fields are required?
27 - What's the current completion rate?
28 - Where do users drop off?
29
303. **Business Constraints**
31 - What data is genuinely needed at signup?
32 - Are there compliance requirements?
33 - What happens immediately after signup?
34
35---
36
37## Core Principles
38
39### 1. Minimize Required Fields
40Every field reduces conversion. For each field, ask:
41- Do we absolutely need this before they can use the product?
42- Can we collect this later through progressive profiling?
43- Can we infer this from other data?
44
45**Typical field priority:**
46- Essential: Email (or phone), Password
47- Often needed: Name
48- Usually deferrable: Company, Role, Team size, Phone, Address
49
50### 2. Show Value Before Asking for Commitment
51- What can you show/give before requiring signup?
52- Can they experience the product before creating an account?
53- Reverse the order: value first, signup second
54
55### 3. Reduce Perceived Effort
56- Show progress if multi-step
57- Group related fields
58- Use smart defaults
59- Pre-fill when possible
60
61### 4. Remove Uncertainty
62- Clear expectations ("Takes 30 seconds")
63- Show what happens after signup
64- No surprises (hidden requirements, unexpected steps)
65
66---
67
68## Field-by-Field Optimization
69
70### Email Field
71- Single field (no email confirmation field)
72- Inline validation for format
73- Check for common typos (gmial.com → gmail.com)
74- Clear error messages
75
76### Password Field
77- Show password toggle (eye icon)
78- Show requirements upfront, not after failure
79- Consider passphrase hints for strength
80- Update requirement indicators in real-time
81
82**Better password UX:**
83- Allow paste (don't disable)
84- Show strength meter instead of rigid rules
85- Consider passwordless options
86
87### Name Field
88- Single "Full name" field vs. First/Last split (test this)
89- Only require if immediately used (personalization)
90- Consider making optional
91
92### Social Auth Options
93- Place prominently (often higher conversion than email)
94- Show most relevant options for your audience
95 - B2C: Google, Apple, Facebook
96 - B2B: Google, Microsoft, SSO
97- Clear visual separation from email signup
98- Consider "Sign up with Google" as primary
99
100### Phone Number
101- Defer unless essential (SMS verification, calling leads)
102- If required, explain why
103- Use proper input type with country code handling
104- Format as they type
105
106### Company/Organization
107- Defer if possible
108- Auto-suggest as they type
109- Infer from email domain when possible
110
111### Use Case / Role Questions
112- Defer to onboarding if possible
113- If needed at signup, keep to one question
114- Use progressive disclosure (don't show all options at once)
115
116---
117
118## Single-Step vs. Multi-Step
119
120### Single-Step Works When:
121- 3 or fewer fields
122- Simple B2C products
123- High-intent visitors (from ads, waitlist)
124
125### Multi-Step Works When:
126- More than 3-4 fields needed
127- Complex B2B products needing segmentation
128- You need to collect different types of info
129
130### Multi-Step Best Practices
131- Show progress indicator
132- Lead with easy questions (name, email)
133- Put harder questions later (after psychological commitment)
134- Each step should feel completable in seconds
135- Allow back navigation
136- Save progress (don't lose data on refresh)
137
138**Progressive commitment pattern:**
1391. Email only (lowest barrier)
1402. Password + name
1413. Customization questions (optional)
142
143---
144
145## Trust and Friction Reduction
146
147### At the Form Level
148- "No credit card required" (if true)
149- "Free forever" or "14-day free trial"
150- Privacy note: "We'll never share your email"
151- Security badges if relevant
152- Testimonial near signup form
153
154### Error Handling
155- Inline validation (not just on submit)
156- Specific error messages ("Email already registered" + recovery path)
157- Don't clear the form on error
158- Focus on the problem field
159
160### Microcopy
161- Placeholder text: Use for examples, not labels
162- Labels: Always visible (not just placeholders)
163- Help text: Only when needed, placed close to field
164
165---
166
167## Mobile Signup Optimization
168
169- Larger touch targets (44px+ height)
170- Appropriate keyboard types (email, tel, etc.)
171- Autofill support
172- Reduce typing (social auth, pre-fill)
173- Single column layout
174- Sticky CTA button
175- Test with actual devices
176
177---
178
179## Post-Submit Experience
180
181### Success State
182- Clear confirmation
183- Immediate next step
184- If email verification required:
185 - Explain what to do
186 - Easy resend option
187 - Check spam reminder
188 - Option to change email if wrong
189
190### Verification Flows
191- Consider delaying verification until necessary
192- Magic link as alternative to password
193- Let users explore while awaiting verification
194- Clear re-engagement if verification stalls
195
196---
197
198## Measurement
199
200### Key Metrics
201- Form start rate (landed → started filling)
202- Form completion rate (started → submitted)
203- Field-level drop-off (which fields lose people)
204- Time to complete
205- Error rate by field
206- Mobile vs. desktop completion
207
208### What to Track
209- Each field interaction (focus, blur, error)
210- Step progression in multi-step
211- Social auth vs. email signup ratio
212- Time between steps
213
214---
215
216## Output Format
217
218### Audit Findings
219For each issue found:
220- **Issue**: What's wrong
221- **Impact**: Why it matters (with estimated impact if possible)
222- **Fix**: Specific recommendation
223- **Priority**: High/Medium/Low
224
225### Recommended Changes
226Organized by:
2271. Quick wins (same-day fixes)
2282. High-impact changes (week-level effort)
2293. Test hypotheses (things to A/B test)
230
231### Form Redesign (if requested)
232- Recommended field set with rationale
233- Field order
234- Copy for labels, placeholders, buttons, errors
235- Visual layout suggestions
236
237---
238
239## Common Signup Flow Patterns
240
241### B2B SaaS Trial
2421. Email + Password (or Google auth)
2432. Name + Company (optional: role)
2443. → Onboarding flow
245
246### B2C App
2471. Google/Apple auth OR Email
2482. → Product experience
2493. Profile completion later
250
251### Waitlist/Early Access
2521. Email only
2532. Optional: Role/use case question
2543. → Waitlist confirmation
255
256### E-commerce Account
2571. Guest checkout as default
2582. Account creation optional post-purchase
2593. OR Social auth with single click
260
261---
262
263## Experiment Ideas
264
265### Form Design Experiments
266
267**Layout & Structure**
268- Single-step vs. multi-step signup flow
269- Multi-step with progress bar vs. without
270- 1-column vs. 2-column field layout
271- Form embedded on page vs. separate signup page
272- Horizontal vs. vertical field alignment
273
274**Field Optimization**
275- Reduce to minimum fields (email + password only)
276- Add or remove phone number field
277- Single "Name" field vs. "First/Last" split
278- Add or remove company/organization field
279- Test required vs. optional field balance
280
281**Authentication Options**
282- Add SSO options (Google, Microsoft, GitHub, LinkedIn)
283- SSO prominent vs. email form prominent
284- Test which SSO options resonate (varies by audience)
285- SSO-only vs. SSO + email option
286
287**Visual Design**
288- Test button colors and sizes for CTA prominence
289- Plain background vs. product-related visuals
290- Test form container styling (card vs. minimal)
291- Mobile-optimized layout testing
292
293---
294
295### Copy & Messaging Experiments
296
297**Headlines & CTAs**
298- Test headline variations above signup form
299- CTA button text: "Create Account" vs. "Start Free Trial" vs. "Get Started"
300- Add clarity around trial length in CTA
301- Test value proposition emphasis in form header
302
303**Microcopy**
304- Field labels: minimal vs. descriptive
305- Placeholder text optimization
306- Error message clarity and tone
307- Password requirement display (upfront vs. on error)
308
309**Trust Elements**
310- Add social proof next to signup form
311- Test trust badges near form (security, compliance)
312- Add "No credit card required" messaging
313- Include privacy assurance copy
314
315---
316
317### Trial & Commitment Experiments
318
319**Free Trial Variations**
320- Credit card required vs. not required for trial
321- Test trial length impact (7 vs. 14 vs. 30 days)
322- Freemium vs. free trial model
323- Trial with limited features vs. full access
324
325**Friction Points**
326- Email verification required vs. delayed vs. removed
327- Test CAPTCHA impact on completion
328- Terms acceptance checkbox vs. implicit acceptance
329- Phone verification for high-value accounts
330
331---
332
333### Post-Submit Experiments
334
335- Clear next steps messaging after signup
336- Instant product access vs. email confirmation first
337- Personalized welcome message based on signup data
338- Auto-login after signup vs. require login
339
340---
341
342## Task-Specific Questions
343
3441. What's your current signup completion rate?
3452. Do you have field-level analytics on drop-off?
3463. What data is absolutely required before they can use the product?
3474. Are there compliance or verification requirements?
3485. What happens immediately after signup?
349
350---
351
352## Related Skills
353
354- **onboarding-cro**: For optimizing what happens after signup
355- **form-cro**: For non-signup forms (lead capture, contact)
356- **page-cro**: For the landing page leading to signup
357- **ab-test-setup**: For testing signup flow changes