Lexiik detects over 50 types of SEO errors specific to e-commerce. This comprehensive guide presents the most common issues, their impact on your search ranking, and how to identify them in your dashboard.
Good to know
Structure & Tag Errors
These errors concern the HTML elements Google uses to understand and rank your pages. They account for 40% of issues detected on e-commerce stores.
Problematic Titles (Title Tag)
🔴 CRITICAL
The <title> tag is missing. Google cannot properly display your page in search results.
Impact: -70% potential CTR
Multiple products share the same title. Google cannot differentiate them and may de-index some.
Impact: SEO cannibalization between similar products
Google expects descriptive titles of 50-60 characters to understand the page topic.
Impact: -35% relevance for Google
🟡 MEDIUM
Google truncates titles beyond 60 characters. The message is not fully visible in SERPs.
The title does not contain the product's main keyword, reducing relevance for Google.
Problematic Meta Descriptions
🔴 CRITICAL
Google generates a random excerpt from your page, often unappealing to users.
Impact: -23% average CTR in Google SERPs
Multiple pages share the same description, creating confusion for Google and users.
Tip
Example: "Nike Air Zoom Pegasus 40 men's running shoes. Responsive cushioning, optimal support. Free shipping over $50. Buy now!"
Heading Tags (H1, H2, H3...)
🔴 CRITICAL
The H1 tag is the main page title. Its absence prevents Google from understanding the main topic.
More than one H1 on the page. Google doesn't know what the main topic is (obsolete practice since HTML5).
🟡 MEDIUM
Jumping from H1 to H3 without H2, or inconsistent order. Google favors a logical structure.
Unnecessary duplication. The H1 can be longer and more descriptive than the Title.
Content Errors
Content is the pillar of e-commerce SEO. Google values unique, detailed, and user-relevant descriptions.
Duplicate Content
🔴 CRITICAL
You are using the manufacturer's standard description. Thousands of other sites have the same text.
Impact: Google penalty for duplicate content (-50 to -90% visibility)
Several of your product listings share the same text (color/size variations for example).
Impact: Google only indexes one variant, the others are invisible
Warning
Thin Content
🟡 MEDIUM
Google considers there is not enough information to judge the page's relevance.
Recommended: 150-300 words for a product listing
Bullet lists improve readability and are favored by Google for featured snippets.
Over-Optimization (Keyword Stuffing)
🔵 MINOR
Excessive repetition of the main keyword. Google detects this outdated practice and may penalize.
Premium Feature
Lexiik AI automatically generates unique descriptions of optimal length (250-350 words) with natural keyword density.
Try AI for free →Image Errors
Images account for 60-80% of an e-commerce page's weight. They are also a major traffic source via Google Images (20-30% of SEO traffic for the fashion/home decor sectors).
ALT Attributes
🔴 CRITICAL
The alt="" attribute is empty or missing. Google cannot index this image in Google Images.
Impact: You lose 20-30% of potential traffic for this product listing
The ALT must precisely describe the image. Generic terms have no SEO value.
🟡 MEDIUM
All your product images have the same ALT. Google considers them redundant.
Google truncates overly verbose ALTs. Stay concise and descriptive.
Tip
Image Format & Weight
🟡 MEDIUM
Excessive weight that slows page loading and degrades Core Web Vitals.
Impact: Degraded LCP = Google penalty since the Page Experience update
Modern formats reduce weight by 50-70% without visible quality loss.
🔵 MINOR
Off-screen images are loaded immediately, slowing down the initial display.
Causes layout shift (CLS) when images load.
Good to know
Performance Errors
Since the "Page Experience" update (June 2021), Google incorporates speed and user experience into its ranking algorithm.
Core Web Vitals
🔴 CRITICAL
Largest Contentful Paint: time before main content is displayed. >4s = catastrophic experience.
Target: <2.5s
Cumulative Layout Shift: visual instability. Elements move during page loading.
Target: <0.1
🟡 MEDIUM
Interaction to Next Paint: delay before responding to user clicks.
Target: <200ms
High TTFB (Time To First Byte). Your hosting or CMS is slow.
Cache & Compression
🔵 MINOR
HTML/CSS/JS is not compressed, unnecessarily increasing the transferred weight.
Static resources (images, CSS, JS) are reloaded on every visit.
Identifying Errors in Lexiik
Global View by Severity
The Lexiik dashboard prioritizes critical errors:
- 1. Error counter: Total count by severity (Critical / Medium / Minor)
- 2. Smart filtering: Click on 🔴 to display only blocking errors
- 3. Sort by impact: Ranked by "estimated traffic loss" (in % or visits/month)
- 4. Bulk actions: Fix all errors of a type in one click (bulk AI generation)
Tip
Export & Sharing
Lexiik allows you to export a detailed PDF report by error type, ideal for:
- Sharing with your developer or web agency
- Justifying an optimization budget to your management
- Tracking progress month after month (report history)
Take Action
You now know how to identify and understand each type of error. Time to fix them!
Correction guide
Step-by-step methods to efficiently fix each type of error.
Fix with AI
Let Lexiik AI automatically fix your content and image errors.