> ## Documentation Index
> Fetch the complete documentation index at: https://docs.seocrawler.app/llms.txt
> Use this file to discover all available pages before exploring further.
# SEO Analysis
> Audit on-page SEO factors including meta tags, headings, and images
## Overview
On-page SEO elements help search engines understand your content and rank it appropriately. SEO Crawler analyzes every page for SEO best practices, identifying issues that could hurt your search visibility.
**Available on**: Solo, Pro, and Agency plans
## What We Analyze
### Meta Tags
| Element | What We Check |
| -------------------- | ------------------------------------------------ |
| **Title Tag** | Present, length (50-60 chars), uniqueness |
| **Meta Description** | Present, length (150-160 chars), uniqueness |
| **Canonical URL** | Present, self-referencing or valid target |
| **Robots Meta** | Noindex/nofollow directives |
| **Open Graph** | og:title, og:description, og:image |
| **Twitter Cards** | twitter:card, twitter:title, twitter:description |
### Heading Structure
| Check | Description |
| --------------------- | ------------------------------------- |
| **H1 Presence** | Every page should have exactly one H1 |
| **H1 Uniqueness** | H1 text should be unique across site |
| **Heading Hierarchy** | Proper nesting (H1 → H2 → H3) |
| **Keyword Relevance** | Headings relate to page content |
### Images
| Check | Description |
| ----------------- | ------------------------------------------- |
| **Alt Text** | All images have descriptive alt attributes |
| **Alt Quality** | Alt text is descriptive, not just filenames |
| **File Size** | Large images flagged for optimization |
| **Broken Images** | Missing or 404 image sources |
### Technical Elements
| Element | What We Check |
| ------------------- | -------------------------------------- |
| **Viewport Meta** | Mobile-friendly viewport configuration |
| **Language** | `lang` attribute on `` element |
| **Charset** | UTF-8 encoding specified |
| **Structured Data** | JSON-LD or Microdata presence |
## Why SEO Analysis Matters
### Search Visibility
Search engines use on-page signals to:
* **Understand Content**: Meta tags summarize page topic
* **Rank Appropriately**: Proper optimization improves rankings
* **Display Results**: Titles and descriptions appear in search results
### Click-Through Rate
Well-optimized meta tags increase clicks:
| Element | Impact |
| -------------------- | ---------------------------------- |
| **Compelling Title** | +20-30% CTR improvement |
| **Good Description** | Users know what to expect |
| **Rich Snippets** | Structured data adds visual appeal |
### Accessibility
Many SEO elements also improve accessibility:
* **Image Alt Text**: Screen readers for visually impaired users
* **Heading Structure**: Navigation for keyboard users
* **Language Tag**: Proper pronunciation in screen readers
## Reading SEO Results
### Summary Dashboard
After a crawl with SEO Analysis enabled:
| Metric | Description |
| ------------------- | ---------------------------------- |
| **SEO Score** | Overall on-page SEO health (0-100) |
| **Pages Analyzed** | Number of pages checked |
| **Issues Found** | Total SEO problems detected |
| **Critical Issues** | High-priority problems |
### Issue Categories
Issues are grouped by type and severity:
```
SEO Issues Summary
─────────────────────────────────────────
🔴 Critical (3)
• Missing H1 tag (3 pages)
🟠 Warning (12)
• Title too long (5 pages)
• Missing meta description (4 pages)
• Missing image alt text (3 pages)
🟡 Info (8)
• Short meta description (8 pages)
```
### Page-Level Detail
Click any page to see all SEO issues:
```
Page: /blog/example-post
─────────────────────────────────────────
Title: "Example Post - My Blog | Example Company"
✓ Present
⚠ 58 characters (recommended: 50-60)
Description: "Learn about example topics..."
✓ Present
✓ 145 characters (good length)
H1: "Example Post Title"
✓ Present
✓ Unique on site
Images: 4 images found
⚠ 2 missing alt text
```
## Common Issues and Fixes
### Missing or Poor Title Tags
```html theme={null}
Untitled
This Is An Extremely Long Title That Goes On And On And Will Be Truncated By Search Engines
```
```html theme={null}
SEO Guide: On-Page Optimization Best Practices | Company
```
**Best practices**:
* Include primary keyword near the beginning
* Make each title unique
* Include brand name at the end
* Keep under 60 characters
### Missing or Poor Meta Descriptions
```html theme={null}
Page Title
```
```html theme={null}
```
**Best practices**:
* Summarize page content compellingly
* Include a call to action
* Make each description unique
* Keep between 150-160 characters
### H1 Tag Issues
```html theme={null}
Welcome
Main Title
Another Title
```
```html theme={null}
Complete Guide to On-Page SEO
Section 1: Meta Tags
Title Tags
Meta Descriptions
Section 2: Content Structure
```
### Missing Image Alt Text
```html theme={null}
```
```html theme={null}
```
**Best practices**:
* Describe the image content
* Include relevant keywords naturally
* Keep reasonably short (125 characters max)
* Use empty alt for purely decorative images
### Missing Viewport Meta
```html theme={null}
Page
```
```html theme={null}
Page
```
## SEO Best Practices Checklist
Every page needs unique, compelling title and meta description.
One descriptive H1 that summarizes the page topic.
Use headings in order (H1 → H2 → H3) without skipping levels.
Descriptive alt text for all meaningful images.
Include viewport meta tag for mobile-friendly display.
Add JSON-LD for rich snippets (articles, products, etc.).
## Filtering SEO Issues
| Filter | Description |
| -------------- | ------------------------------------ |
| **Severity** | Critical, Warning, Info |
| **Issue Type** | Title, Description, H1, Images, etc. |
| **Page URL** | Filter by URL pattern |
| **Has Issue** | Pages with specific problem types |
## Bulk Editing Recommendations
For sites with many similar issues:
If the same issue appears on many pages (e.g., missing descriptions on all blog posts), consider:
1. **Template fixes** for CMS-generated pages
2. **Bulk find/replace** in your codebase
3. **CMS plugins** for automated meta tag generation
## Related Features
Analyze link text quality for internal and external links.
Get AI-powered SEO recommendations with priority rankings.