Manufacturer Descriptions
What are Manufacturer Descriptions?
Manufacturer descriptions are pre-made product texts provided by manufacturers. These standard descriptions are often used unchanged by multiple retailers, leading to massive duplicate content.
The Problem with Manufacturer Descriptions
Duplicate Content Risks
Risk
Impact
Severity
Google Penalty
Ranking Loss
High
Indexing Issues
Pages Not Found
Medium
Competitive Disadvantage
No Unique Value
High
Link Juice Loss
Weaker Domain Authority
Medium
Common Scenarios
- Identical Product Descriptions - Multiple retailers use exactly the same text
- Minimal Variations - Only small changes like prices or availability
- Cross-Domain Duplicates - Same content on different domains
- Internal Duplicates - Same descriptions for similar products
Strategies Against Duplicate Content
1. Implement Canonical Tags
Best Practices for Canonical Tags:
- Self-Referencing Canonicals for all pages
- Cross-Domain Canonicals for identical content
- Avoid Canonical Chains - max. 1 redirect
- Prefer HTTPS over HTTP versions
2. Create Unique Content
Content Extension Strategies:
- Integrate Customer Reviews - Include real experiences
- Local Aspects - Regional availability, service
- Technical Details - Expand specifications
- Use Cases - Practical examples
- Comparison Tables - With competitor products
3. Use Structured Data
Important Schema.org Properties:
name- Unique product namedescription- Unique product descriptionbrand- Manufacturer informationoffers- Price and availabilityaggregateRating- Reviewsreview- Individual customer reviews
4. Optimize Parameter Handling
Parameter Categories:
- Tracking Parameters - utm_source, utm_medium
- Filter Parameters - Color, size, price
- Sort Parameters - Price, rating, name
- Session Parameters - Session-ID, User-ID
Technical Implementation
Robots.txt Configuration
# Block manufacturer descriptions
Disallow: /herstellerbeschreibungen/
Disallow: /manufacturer-descriptions/
# Block parameter URLs
Disallow: /*?*manufacturer*
Disallow: /*?*description*
XML-Sitemap Management
Sitemap Best Practices:
- Only Canonical URLs in sitemap
- Exclude Parameter URLs
- Regular Updates (daily/weekly)
- Separate Sitemaps for different content types
Meta-Robots-Tags
Content Strategies for Unique Value
1. Use Manufacturer Text as Base
Extension Approaches:
- Customer Experiences - Real reviews and testimonials
- Local Relevance - Regional availability and service
- Technical Depth - Detailed specifications
- Use Cases - Practical examples and use cases
2. Integrate User-Generated Content
UGC Integration:
- Customer Reviews - Include real experiences
- FAQ Sections - Answer frequent customer questions
- Comparison Articles - With similar products
- Guides - Installation, maintenance, tips
3. Regular Content Updates
Update Strategies:
- Weekly - Prices and availability
- Monthly - Reviews and ratings
- Quarterly - Technical specifications
- Annually - Complete content revision
Monitoring and Analysis
Duplicate Content Detection
Important Tools:
- Screaming Frog - Crawling and duplicate detection
- Siteliner - Specialized in duplicate content
- Copyscape - Cross-domain duplicate detection
- Google Search Console - Indexing issues
KPIs for Duplicate Content
Important Metrics:
- Duplicate Content Ratio - Share of total content
- Indexing Rate - Ratio of indexed to crawled pages
- Canonical Coverage - Share of pages with canonical tags
- Content Uniqueness Score - Uniqueness of content
Avoid Common Mistakes
1. Canonical Tag Errors
Common Errors:
- Canonical on 404 Page - Leads to indexing loss
- Canonical Chains - Multiple redirects in sequence
- HTTP/HTTPS Mismatch - Inconsistent protocols
- Cross-Domain without Permission - Unauthorized canonicals
2. Content Strategy Errors
Avoidable Errors:
- Minimal Changes - Only change prices or availability
- Keyword Stuffing - Unnatural keyword density
- Thin Content - Too little valuable content
- Outdated Information - Non-updated descriptions
Best Practices Checklist
12 Points: Set canonical tags, create unique content, implement schema markup, handle parameter URLs, configure robots.txt, clean sitemap, update content regularly, integrate UGC, set up monitoring, use tools, avoid errors, measure performance