Senior-SEO-Experte Audit- und Optimierungssystem-Prompt

# SEO Audit and Optimization TODO ## Context - **Site URL**: [X] - **Scope**: Full site audit - **Target Markets**: [X] - **Languages**: [X] - **Primary Business Goals**: [X] - **Target Keyword Themes**: [X] ## Audit Findings ### Crawlability and Indexing - [ ] **SEO-FIND-1.1 [Robots.txt Blocks Critical Resources]**: - **Location**: `/robots.txt` - **Description**: The `robots.txt` file contains a `Disallow` directive for `/assets/` which blocks CSS and JS files, preventing proper rendering and crawlability. - **Impact**: High - Blocked resources can cause incomplete page rendering and diluted crawl budget. - **Recommendation**: Remove the `Disallow` rule for `/assets/` and allow search engines to crawl static resources. ```diff - Disallow: /assets/ + Allow: /assets/ ``` - [ ] **SEO-FIND-1.2 [XML Sitemap Missing Key Pages]**: - **Location**: `/sitemap.xml` - **Description**: The XML sitemap is missing the `/blog/` section and contains outdated URLs from a previous site structure. - **Impact**: High - Missing sitemap entries can delay indexing of new content and waste crawl budget on 404s. - **Recommendation**: Regenerate the sitemap to include all indexable pages, split by content type (e.g., `sitemap-pages.xml`, `sitemap-posts.xml`), and submit to Google Search Console. - [ ] **SEO-FIND-1.3 [Canonical Tag Mismatch on Paginated Pages]**: - **Location**: `/category/*/page/2/` - **Description**: Paginated pages use a self-referencing canonical tag instead of pointing to the main category page, causing duplicate content signals. - **Impact**: Medium - Duplicate content can dilute ranking signals for the primary category page. - **Recommendation**: Implement `rel=canonical` on paginated pages pointing to the first page, or use `rel=prev/next` for pagination handling. ### Site Performance and Core Web Vitals - [ ] **SEO-FIND-2.1 [LCP Above 2.5s on Mobile]**: - **Location**: Homepage and `/product/` pages - **Description**: Field data (CrUX) shows LCP at 3.2s on mobile, primarily due to a large hero image and render-blocking CSS. - **Impact**: Critical - Fails Core Web Vitals thresholds, impacting user experience and ranking. - **Recommendation**: Optimize the hero image to WebP format, preload it, and inline critical CSS for above-the-fold content. ```html <link rel="preload" as="image" href="/images/hero.webp" type="image/webp"> ``` - [ ] **SEO-FIND-2.2 [CLS Above 0.1 on Article Pages]**: - **Location**: `/blog/*` - **Description**: CLS is 0.25 due to ads and images without explicit dimensions shifting layout as they load. - **Impact**: High - Layout shifts degrade user experience and fail Core Web Vitals. - **Recommendation**: Add `width` and `height` attributes to all images and reserve space for ad slots using CSS `min-height`. - [ ] **SEO-FIND-2.3 [TTFB Over 800ms]**: - **Location**: All pages - **Description**: Server response time averages 1.2s due to slow database queries and lack of server-side caching. - **Impact**: High - Slow TTFB delays all other performance metrics. - **Recommendation**: Implement page caching, optimize database queries, and consider a CDN for static assets. ### On-Page SEO Elements - [ ] **SEO-FIND-3.1 [Duplicate Title Tags on Product Pages]**: - **Location**: `/product/*` - **Description**: Multiple product pages share the same title tag "Buy [X] Online - [Brand]", causing keyword cannibalization. - **Impact**: High - Duplicate titles confuse search engines and reduce click-through rates. - **Recommendation**: Generate unique title tags for each product, including specific model numbers and key differentiators. - [ ] **SEO-FIND-3.2 [Missing Meta Descriptions on Blog Posts]**: - **Location**: `/blog/*` - **Description**: Over 50% of blog posts lack meta descriptions, resulting in auto-generated snippets that miss CTAs. - **Impact**: Medium - Missing descriptions reduce CTR from search results. - **Recommendation**: Write unique meta descriptions (150-160 characters) for each post, including a clear CTA. - [ ] **SEO-FIND-3.3 [Thin Content on Category Pages]**: - **Location**: `/category/*` - **Description**: Category pages contain only a list of product links with no descriptive text, providing little value to users or search engines. - **Impact**: Medium - Thin content limits ranking potential for category keywords. - **Recommendation**: Add 200-300 words of unique, informative copy to each category page, including relevant keywords and internal links. ### Structured Data and Schema Markup - [ ] **SEO-FIND-4.1 [Invalid Product Schema]**: - **Location**: `/product/*` - **Description**: Product schema markup is missing required fields (`offers.price`, `offers.availability`) and uses incorrect `@type` for some items. - **Impact**: High - Invalid schema prevents rich snippet eligibility. - **Recommendation**: Fix the JSON-LD to include all required fields and validate with Google Rich Results Test. ```json { "@context": "https://schema.org/", "@type": "Product", "name": "[X]", "offers": { "@type": "Offer", "price": "[X]", "priceCurrency": "USD", "availability": "https://schema.org/InStock" } } ``` - [ ] **SEO-FIND-4.2 [Missing Breadcrumb Schema]**: - **Location**: All pages - **Description**: Breadcrumbs are visible but lack `BreadcrumbList` schema markup, missing an opportunity for enhanced SERP display. - **Impact**: Low - Missing breadcrumb schema is a missed opportunity for rich results. - **Recommendation**: Implement `BreadcrumbList` JSON-LD on all pages. ### Off-Page and Backlink Profile - [ ] **SEO-FIND-5.1 [Toxic Backlink Accumulation]**: - **Location**: Domain-wide - **Description**: Backlink profile shows a high number of spammy links from link farms and irrelevant directories, likely from a past negative SEO attack. - **Impact**: High - Toxic links can trigger algorithmic penalties and reduce domain authority. - **Recommendation**: Compile a disavow file for clearly spammy domains and submit to Google via the Disavow Tool. Request removal from high-authority but irrelevant sites. - [ ] **SEO-FIND-5.2 [Anchor Text Over-Optimization]**: - **Location**: Domain-wide - **Description**: The backlink profile has an unnaturally high percentage of exact-match anchor text for primary keywords. - **Impact**: Medium - Over-optimized anchors can appear manipulative to Google. - **Recommendation**: Diversify anchor text by building links with branded, URL, and generic anchors. ## Remediation Recommendations ### Immediate (0-2 Weeks) - [ ] **SEO-REC-1.1 [Fix Robots.txt and Sitemap]**: - **Priority**: Critical - **Effort**: 2 hours - **Expected Outcome**: Improved crawlability and indexing of key pages. - **Validation**: Check Google Search Console for increased crawl rate and index coverage. - [ ] **SEO-REC-1.2 [Resolve Critical Core Web Vitals Issues]**: - **Priority**: Critical - **Effort**: 3 days - **Expected Outcome**: LCP under 2.5s, CLS under 0.1, and TTFB under 800ms. - **Validation**: Monitor CrUX data in Search Console and PageSpeed Insights. - [ ] **SEO-REC-1.3 [Fix Duplicate Title Tags and Missing Meta Descriptions]**: - **Priority**: High - **Effort**: 1 day - **Expected Outcome**: Improved CTR and reduced keyword cannibalization. - **Validation**: Use Screaming Frog to re-crawl and verify unique titles/descriptions. - [ ] **SEO-REC-1.4 [Validate and Fix Structured Data]**: - **Priority**: High - **Effort**: 4 hours - **Expected Outcome**: Eligibility for rich snippets and enhanced SERP display. - **Validation**: Use Google Rich Results Test to confirm no errors. ### Short-Term (2-6 Weeks) - [ ] **SEO-REC-2.1 [Add Content to Category Pages]**: - **Priority**: Medium - **Effort**: 2 days - **Expected Outcome**: Improved ranking for category keywords and better user engagement. - **Validation**: Monitor keyword rankings and dwell time in GA4. - [ ] **SEO-REC-2.2 [Disavow Toxic Backlinks and Diversify Anchor Text]**: - **Priority**: High - **Effort**: 1 week - **Expected Outcome**: Reduced penalty risk and improved domain authority. - **Validation**: Monitor backlink profile in Ahrefs or SEMrush for reduced toxicity score. - [ ] **SEO-REC-2.3 [Implement Breadcrumb Schema]**: - **Priority**: Low - **Effort**: 2 hours - **Expected Outcome**: Enhanced SERP display with breadcrumb trails. - **Validation**: Check Rich Results Test for breadcrumb validation. ### Long-Term (6+ Weeks) - [ ] **SEO-REC-3.1 [Develop Content Calendar for Keyword Gaps]**: - **Priority**: Medium - **Effort**: Ongoing - **Expected Outcome**: Capture new keyword opportunities and increase organic traffic. - **Validation**: Track new keyword rankings and organic traffic growth in GA4. - [ ] **SEO-REC-3.2 [Implement Ongoing Core Web Vitals Monitoring]**: - **Priority**: High - **Effort**: 1 day setup - **Expected Outcome**: Prevent performance regressions and maintain good user experience. - **Validation**: Set up alerts in Search Console for Core Web Vitals regressions. ## Proposed Code Changes ### Fix Robots.txt ```diff User-agent: * Allow: / - Disallow: /assets/ Disallow: /admin/ ``` ### Add Breadcrumb Schema ```html <script type="application/ld+json"> { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://example.com/" }, { "@type": "ListItem", "position": 2, "name": "Category", "item": "https://example.com/category/" } ] } </script> ``` ## Commands ### Local Validation ```bash # Run Lighthouse for Core Web Vitals npx lighthouse https://example.com/ --only-categories=performance --output=json --output-path=./lighthouse.json # Crawl site for SEO issues npx crawl-everything https://example.com/ --output=./crawl-report.json # Validate structured data npx schema-validator https://example.com/product/ ``` ### CI Pipeline ```yaml # .github/workflows/seo-audit.yml name: SEO Audit on: [deployment] jobs: audit: runs-on: ubuntu-latest steps: - name: Run Lighthouse CI run: npx lhci autorun - name: Check for broken links run: npx link-checker https://example.com/ ``` ## Quality Assurance Checklist - [ ] All findings reference specific URLs, code lines, or measurable metrics - [ ] Tool results and screenshots are included as evidence for every critical finding - [ ] Competitor benchmark data supports priority and impact assessments - [ ] Recommendations cite Google search engine guidelines or documented best practices - [ ] Code examples are provided for all technical fixes (meta tags, schema, redirects) - [ ] Validation steps are included for every recommendation so progress is measurable - [ ] ROI projections and traffic potential estimates are grounded in actual data