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Postalocity
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seo-sitemap

Validate XML sitemap syntax, URL counts, and lastmod accuracy.

1|Updated Mar 5, 2026
Search Tags:#validation#structure#generation#sitemap#xml#seo
One-click install
npx skills add https://github.com/Postalocity/template-microsite --skill seo-sitemap-postalocity
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: seo-sitemap
Source: https://github.com/Postalocity/template-microsite/tree/main/.opencode/integrations/claude-seo/seo-sitemap
Command: npx skills add https://github.com/Postalocity/template-microsite --skill seo-sitemap-postalocity

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Analyze existing XML sitemaps or generate new ones using industry templates to ensure compliant, crawl-friendly structure.

Core Features & Use Cases

  • Validate XML sitemap format, URL correctness, and lastmod consistency.
  • Generate new sitemaps from industry templates.
  • Use Case: Imagine a large site; generate a sitemap and ensure proper indexing.

Quick Start

Provide your site URL and ask the system to analyze its sitemap or generate a new one from industry templates.

Frequently Asked Questions about seo-sitemap

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate an XML sitemap for a large website archive?▼

Generate XML sitemaps using industry templates to ensure a compliant, crawl-friendly structure. This process supports large archives by automatically splitting sitemaps at the 50,000 URL limit to maintain valid indexing standards.

Why does my XML sitemap validation keep failing on URL counts and syntax?▼

XML sitemap validation fails when URL counts exceed the 50,000 limit or syntax contains errors. Validate XML syntax, URL correctness, and lastmod consistency to debug issues and ensure your structure is crawl-friendly.

When do I need to split XML sitemaps and check robots.txt references?▼

Split XML sitemaps when your archive exceeds 50,000 URLs to maintain valid indexing. You should validate robots.txt references and lastmod accuracy during this process to ensure proper search engine crawling.

Can I generate sitemap documentation to track my website's indexing structure?▼

Generate STRUCTURE.md documentation to track your website's indexing structure. This output accompanies XML sitemap generation and validation, providing a readable reference for your archive's crawl-friendly architecture.

What is the best way to validate lastmod accuracy in an existing XML sitemap?▼

The best way to validate lastmod accuracy is to analyze existing XML sitemaps against industry templates. This checks lastmod consistency, XML syntax correctness, and URL validity to debug crawl-friendly structure issues.

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