Sitemap Validator

What Can the Sitemap Validator Do?

The Sitemap Validator is a pure frontend online tool for verifying XML Sitemap format correctness and content validity. It supports standard Sitemap and Sitemap Index formats, detecting XML syntax errors, URL format issues, duplicate URLs, missing required fields, date format errors, and other common problems to ensure your Sitemap complies with Google and search engine specifications.

Core Features

• XML Format Validation: Detect XML syntax errors, unclosed tags, encoding issues
• URL Validity Check: Verify loc field URL format, protocol, domain
• Duplicate URL Detection: Find duplicate URL entries
• Field Completeness: Check required field loc, optional fields lastmod/changefreq/priority
• Structure Analysis: Identify Sitemap type, count URLs, analyze update frequency

How to Use

Step 1: Paste Sitemap XML content or drag and drop an .xml file.

Step 2: Click "Validate" or use Ctrl+Enter shortcut.

Step 3: View results including statistics and issue list.

Step 4: Fix issues based on tips, click "Copy Report" to save results.

Use Cases

SEO Optimization

Ensure Sitemap format is correct to help Google efficiently crawl and index your site pages.

Site Migration

Verify new Sitemap URLs are correct after migration, avoiding dead links and index loss.

Regular Audits

Periodically check Sitemap health, catching format errors and duplicate URLs early.

Technical Background

The XML Sitemap protocol is defined by sitemaps.org. A standard Sitemap file can contain up to 50K URLs and 50MB (uncompressed). Use Sitemap Index for larger sites. The only required field is loc. Optional fields include lastmod (W3C date format), changefreq (update frequency), and priority (0.0-1.0). Google recommends each sub-Sitemap in a Sitemap Index not exceed 50K URLs. Compression should use Gzip (.xml.gz), with compressed size not exceeding 50MB.

FAQ