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guidelines

Technical Performance

Speed and performance optimization tactics for eCommerce. Glued's manifesto guidelines for faster, higher-converting stores.

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236
Make Buying Easy with Clear Product Displays
Reduces Friction
Shortens The Buying Journey
Increases Conversions
context

If users have to navigate multiple pages—Product Detail Page (PDP), Cart, and Checkout—just to make a purchase, they may drop off before completing their order. A complicated journey leads to lost sales.

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222
Make Categories Clickable for Easy Navigation
Enhances Usability
Improves Accessibility
Increases Conversions
context

If category labels are not clickable, users may get frustrated trying to tap subcategories or navigate backward. This adds unnecessary friction and slows down the shopping experience.

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221
User Experience, Technical Performance
Reduces Confusion
Improves Navigation
Increases Conversions
context

When collection and product links look the same, users may struggle to differentiate between browsing a category and selecting a specific product. This can lead to frustration and an inefficient shopping experience.

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220
Add a Primary Action in Mobile Navigation
Improves Navigation
Reduces Hesitation
Increases Conversions
context

On mobile, users may feel overwhelmed by multiple navigation options, leading to indecision and drop-offs. If they can't quickly determine where to go next, they may abandon the session entirely.

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218
Optimize Mobile Dropdowns for Quick Access
Enhances Usability
Reduces Friction
Improves Navigation
context

On mobile, opening all dropdowns by default creates a cluttered, overwhelming experience. But if everything is closed, users may not realize what's available, leading to frustration.

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217
Maintain a Clear Visual Hierarchy in Mobile Navigation
Enhances Clarity
Reduces Frustration
Improves Usability
context

If your mobile navigation lacks a clear structure, users will struggle to find what they need. Poor visual hierarchy leads to confusion, frustration, and increased drop-offs.

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215
Upgrade to Branded Mega Menus
Improves Engagement
Enhances Navigation
Increases Conversions
context

Traditional dropdown menus can feel dull, overwhelming, or hard to scan. If your navigation lacks visual appeal and organization, users may struggle to find what they need and leave.

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212
Nest Links Under Dropdowns to Reduce Clutter
Enhances Usability
Reduces Distractions
Improves Navigation
context

A long list of links on mobile can overwhelm users, making it harder for them to find what they need. Cluttered navigation leads to frustration and higher bounce rates.

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210
Use Collections as Main Navigation Dropdowns
Simplifies Navigation
Improves Product Discovery
Increases Conversions
context

If your store has a large number of SKUs, listing individual products in dropdowns will overwhelm users and make navigation cluttered. This slows down browsing and creates decision fatigue.

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209
Make Categories Clickable for Easy Navigation
Enhances Usability
Improves Accessibility
Increases Conversions
context

If category labels are not clickable, users may get frustrated trying to tap subcategories or navigate backward. This adds unnecessary friction and slows down the shopping experience.

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208
User Experience, Technical Performance
Reduces Confusion
Improves Navigation
Increases Conversions
context

When collection and product links look the same, users may struggle to differentiate between browsing a category and selecting a specific product. This can lead to frustration and an inefficient shopping experience.

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206
Prioritize Primary Shopping Links
Improves Navigation
Reduces Friction
Increases Conversions
context

If all links in your navigation look equally important, users may struggle to find the main shopping paths. When primary and secondary links compete for attention, it creates confusion and slows down decision-making.

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205
Streamline Navigation by Limiting Links
Improves Clarity
Reduces Distractions
Increases Conversions
context

A crowded navigation bar can overwhelm visitors, making it harder for them to find what matters. Too many options create decision fatigue, leading to frustration and higher bounce rates.

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203
Keep Desktop Navigation Clean for Large SKU Catalogs
Reduces Clutter
Improves Navigation
Enhances Usability
context

If you have a large number of SKUs, adding images to your desktop navigation can create visual overload, slowing down the browsing experience and making it harder for users to find what they need.

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201
Keep Navigation Clean with Dropdowns
Reduces Clutter
Improves Usability
Increases Conversions
context

A cluttered navigation bar overwhelms users and makes it harder for them to find what they need. Too many options can create friction, leading to frustration and drop-offs.

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191
Keep Your Cart Fast & Lightweight
Reduces Load Times
Prevents Friction
Increases Checkout Conversions
context

A slow or clunky cart experience can frustrate users, leading to abandoned purchases. Overloading your cart with heavy JavaScript or third-party apps can delay interactions, making it harder for users to proceed smoothly to checkout.

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186
Keep Your Cart Clean & Easy to Scan
Improves Clarity
Reduces Friction
Increases Checkout Conversions
context

A cluttered or poorly structured cart makes it hard for users to review their selections and adjust their order, creating friction on what should be a simple process for readying to order to check out.

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190
Make Cart Actions Simple & Intuitive
Improves Usability
Reduces Frustration
Increases Checkout Conversions
context

If users struggle to update quantities, remove items, or make changes in the cart, they may abandon their purchase out of frustration. A clunky cart experience creates unnecessary friction.

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188
Make the Checkout CTA Loud, Clear & Sticky
Reduces Friction
Enhances Product Discovery
Increases Checkout Conversions
context

If users have to scroll to find the Checkout button, they may get distracted or second-guess their purchase, creating unnecessary barriers to completing a purchase.

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185
Display Cart Item Count for Clarity
Improves Transparency
Reduces Confusion
Increases Checkout Conversions
context

Users need a clear visual cue to know how many items they have in their cart. If they can't see their selection or gauge how their cart is growing, they may lose track of their purchase or second-guess their checkout experience.

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176
Optimize Desktop Collections with a 3-4 Column Layout
Improves Product Discovery
Enhances Scannability
Increases Engagement
context

If desktop collections use too few columns, products take up unnecessary space, forcing users to scroll excessively. This can make browsing feel tedious and drawn out.

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175
Use a 2-Column Layout for Info-Light Products
Enhances Product Discovery
Improves Scannability
Increases Engagement
context

If your products don't require detailed descriptions or specs, a traditional single-column layout wastes space and slows down browsing. Users shouldn't have to scroll endlessly to find what they need.

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166
Display Product Count for Better Search Context
Improves Navigation
Increases Engagement
Enhances Decision Making
context

If users don't know how many products are available in a collection or after filtering, they may feel lost or frustrated. Without product count visibility, they might assume there are too many (or too few) options and abandon the search.

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160
Use Breadcrumbs for Clear Navigation
Reduces Confusion
Improves Navigation
Enhances Engagement
context

Without breadcrumbs, users may feel lost when browsing collections, unsure of how they got there or how to navigate back. This can lead to frustration and early exits.

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159
Make Breadcrumbs Clickable for Easy Navigation
Improves Navigation
Reduces Frustration
Increases Engagement
context

If breadcrumbs are static text, they lose their full potential as a navigation tool. Users may want to quickly jump back to a parent category without relying on the back button or reloading pages.

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154
Make Filters Easy to Access & Use
Speeds Up Product Discovery
Reduces Frustration
Increases Conversions
context

If users have to dig through menus or scroll endlessly to find filters, they're more likely to abandon their search or leave frustrated. Quirky or hidden filters also slow down the shopping experience.

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150
Enable Direct Add-to-Cart from Product Carousels
Reduces Friction
Improves Product Discovery
Increases Conversions
context

When users browse alternative products in a PDP carousel, making them click through to another page just to add an item creates unnecessary steps. This extra friction can lead to indecision or drop-offs.

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128
Use Horizontal Space to Optimize Desktop UX
Reduces Friction
Improves Readability
Enhances Engagement
context

Many PDPs are designed with a mobile-first mindset, leading to excessive vertical scrolling on desktop. If content isn't properly structured, users may have to scroll too much to find key details, creating a frustrating experience.

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102
Add Breadcrumbs for Easy Navigation
Improves Navigation
Enhances User Confidence
Increases Product Discovery
context

On sites with a large number of SKUs, users can quickly lose track of where they are. If they land on a product page from search or an ad, they may have no context for where the product sits within your catalog—making it harder to explore related items or return to a broader selection.

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127
Keep Paragraph Width Readable on Desktop
Improves Readability
Reduces Eye Strain
Enhances Engagement
context

On wide desktop screens, text that stretches too far across the screen becomes difficult to read. Long line lengths make it harder for users to track from one line to the next, leading to fatigue and frustration.

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126
Embed Videos to Keep Your PDP Fast & Smooth
Prevents Slow Load Times
Improves Page Performance
Enhances User Experience
context

While product videos are great for engagement, directly uploading large video files to your PDP can slow down your site. Slow-loading pages frustrate users, hurt SEO, and increase bounce rates—especially on mobile.

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125
Don't Neglect Desktop—It Still Needs to Convert
Maximizes Conversions Across All Devices
Improves Accessibility
Captures High Intent Buyers
context

While mobile traffic dominates for many brands, desktop users often have higher purchase intent. If your PDP is optimized only for mobile—without considering desktop usability—you risk losing valuable conversions.

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123
Group Product Information for a Natural Flow
Reduces Cognitive Load
Improves Readability
Increases Conversions
context

Scattered product details force users to jump around the page, making it harder to find key information. When specs, benefits, and pricing are disorganized, users may get frustrated or miss crucial details—leading to drop-offs.

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116
Add Carousel Arrows for Easy Image Navigation
Reduces Friction
Improves Engagement
Enhances Product Exploration
context

Not all users instinctively know they can swipe through product images, especially on desktop. If navigation isn't clear, they might miss out on key visuals that could influence their purchase decision.

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110
Pre-Select Subscribe & Save for Higher LTV
Increases Ltv
Reduces Friction
context

Many users intend to subscribe but may not actively select the option. If One-Time Purchase is the default, you miss an easy opportunity to increase lifetime value (LTV) and encourage long-term commitment.

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106
Make "Add to Cart" the Star of Your Product Page
Increases Conversions
Reduces Friction In The Buying Process
context

A cluttered product detail page (PDP) with competing elements can distract users from the primary goal—adding the product to their cart. If the "Add to Cart" button is hard to find or overshadowed, users may hesitate or leave.

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105
Remove Distractions—Focus on "Add to Cart"
Increases Add To Cart Rate
Reduces Decision Fatigue
context

Too many options—like alternative payment methods, wishlist buttons, or excessive links—distract users from the primary goal: adding the product to their cart. When users have too much to process, they hesitate or abandon the page.

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97
Clearly Label Variant Selections
Reduces Confusion
Improves Accuracy
Increases Conversions
context

When users select product variants (e.g., size, color, style), they need clear confirmation of their choice. If the selection isn't obvious, they might hesitate or abandon the purchase due to uncertainty.

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96
Ensure Variant Selectors Are Clickable & Clear
Reduces Friction
Improves Usability
Increases Conversions
context

If variant selectors (e.g., size, color, style) don't look interactive, users may struggle to make selections or assume options are unavailable. Similarly, unclear selections can lead to errors and frustration.

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91
Nest One-Time & Subscribe & Save Options Under Each Selection
Increases Aov
Boosts Ltv
Improves User Convenience
context

If users have to navigate away or make extra clicks to see subscription options, many will default to a one-time purchase. This results in missed opportunities to increase lifetime value (LTV) and recurring revenue.

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81
Prioritise Readability
Reduces Friction
Improves Engagement
Increases Conversions
context

If users struggle to read your text due to small font sizes, low contrast, or cluttered design, they may give up and leave. Poor readability creates frustration and weakens your message.

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Make Desktop Actions Clear – Guide Users Visually
Reduces Friction
Improves Engagement
Boosts Conversions
context

If users don’t realize a section is scrollable or interactive, they might miss key content. Assuming they’ll figure it out leads to frustration and lost opportunities.

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