How to Create Pattern-Based Wildcard Redirect Rules to Prevent Future 404s

A wildcard pattern rule does something individual redirects cannot, it catches an entire family of URLs sharing a structure before each one individually breaks, meaning a single well-designed rule can prevent hundreds of future 404s rather than reacting to them one at a time as they occur.

This guide is for merchants who want to build pattern-based wildcard rules proactively, catching predictable future URL changes before they generate 404s rather than fixing each one after the fact.

Quick Answer

Yes, pattern-based wildcard rules can prevent future 404s proactively. SC Easy Redirects supports redirect patterns that automatically match old URLs sharing a predictable structure, so if you know a category of URLs will systematically change or break, a wildcard rule set up in advance catches the whole family the moment those URLs go live, without waiting for individual 404s to occur first.

What This Involves

A pattern-based wildcard redirect rule matches an entire family of URLs sharing a structural pattern, an old prefix, a discontinued handle format, in one entry, and setting one up proactively, before the URLs actually break, prevents the wave of individual 404s that would otherwise occur as each one goes live.

Who Needs This

• Merchants anticipating a systematic URL structure change
• Stores planning a future migration or handle format update
• Any business wanting to prevent 404s rather than react to them individually
• Teams wanting one efficient rule instead of many individual redirects
• Businesses with predictable, recurring URL change patterns worth automating

Why It Matters for Your Business

• Proactive patterns prevent 404s rather than reacting after they occur
• One wildcard rule replaces what could be hundreds of individual redirects
• This protects SEO before any damage from broken links occurs
• Predictable future changes are exactly the case wildcards are built for
• This scales efficiently regardless of how many URLs the pattern eventually catches
• Proactive setup removes the pressure of reactive fixing under time constraints

How to Create Pattern-Based Wildcard Redirect Rules to Prevent Future 404s on Shopify

Step 1

Start by identifying URL changes you can predict in advance.

• List any planned or anticipated systematic URL structure changes
• Confirm the change follows a genuinely predictable pattern
• Identify the exact old and new structure the pattern needs to bridge

Step 2: Install and Configure SC Easy Redirects

Install SC Easy Redirects and build the wildcard rule.

• Create a redirect pattern matching the old URL structure
• Map it to the corresponding new structure
• Scope the pattern tightly to avoid catching unrelated URLs

Step 3

Test the pattern before the actual URL change goes live.

• Test the pattern against sample URLs matching the anticipated old structure
• Confirm it does not inadvertently catch URLs outside the intended scope
• Verify the resulting redirect resolves to the correct new destination

Step 4

Deploy the pattern ahead of or alongside the actual URL change.

• Activate the pattern before or at the same time as the structural change
• Confirm no window exists where the old URLs are live without the pattern active
• Monitor the pattern's activity once the change takes effect

Step 5

Maintain and extend the proactive approach over time.

• Watch for new predictable patterns worth setting up proactively
• Review existing patterns periodically for continued relevance and scope
• Build proactive pattern creation into your process for planned structural changes

Examples & Use Cases

Store Planning a Handle Format Change (Consumer goods)
Problem: A planned product handle format standardization would predictably break hundreds of existing URLs
Setup: Built a wildcard pattern through SC Easy Redirects ahead of the change, mapping the old format to the new one before it went live
Result: The change launched without a wave of 404s, since the pattern was already catching the whole family

Brand Anticipating a Collection Restructure (Home goods)
Problem: A collection URL prefix change was planned but had not yet been executed
Setup: Set up the wildcard pattern proactively before executing the restructure, testing it against sample URLs first
Result: The restructure went live with redirect coverage already in place, avoiding any reactive scramble

See more case studies.

Best Practices

• Identify predictable future URL changes worth preventing proactively
• Confirm the change genuinely follows a consistent, matchable structure
• Scope wildcard patterns tightly to avoid unintended matches
• Test the pattern against sample URLs before the actual change
• Activate the pattern before or at the same time as the structural change
• Ensure no gap exists between the change going live and the pattern being active
• Build proactive pattern creation into your standard change process

Summary

Pattern-based wildcard rules can prevent future 404s entirely when set up proactively, ahead of a predictable systematic URL change, rather than reactively fixing each broken URL after it occurs. The core steps are identifying predictable future changes, building and testing the wildcard pattern in advance, and deploying it before or alongside the actual structural change so no gap exists for 404s to occur.

If you can see a URL change coming, SC Easy Redirects can have the pattern rule ready before a single 404 occurs.