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seo-sitemap

Analyze XML sitemaps for validity, URL health, and lastmod accuracy.

Updated Mar 22, 2026
Search Tags:#validation#sitemap#xml#seo#robots.txt#urls#lastmod
One-click install
npx skills add https://github.com/upmarking/fastesthr-20077824 --skill seo-sitemap-upmarking
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: seo-sitemap
Source: https://github.com/upmarking/fastesthr-20077824/tree/main/.agents/skills/seo-sitemap
Command: npx skills add https://github.com/upmarking/fastesthr-20077824 --skill seo-sitemap-upmarking

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Analyze existing XML sitemaps or generate new ones with industry templates to ensure search engine compatibility, accurate indexing, and clean structure, reducing crawl errors and manual toil.

Core Features & Use Cases

  • Validate XML format and URL health, ensure <lastmod> accuracy, and enforce canonical and non-deprecated tags; split large sitemaps into indices for scalability; verify robots.txt references; compare crawled pages with sitemap to detect gaps.
  • Mode 2: Generate new sitemaps using industry templates loaded from assets, with interactive planning, quality gates, and automatic output of sitemap.xml and index files; produce STRUCTURE.md documentation.

Quick Start

Provide your site URL or sitemap file to begin analysis or generate a standards-compliant XML sitemap.

Frequently Asked Questions about seo-sitemap

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

FAQPage Schema
How do I validate an XML sitemap for SEO errors and crawl issues?▼

Sitemap validation checks XML format correctness, URL health, <lastmod> accuracy, and robots.txt references to ensure search engine compatibility. This process outputs a validation report identifying crawl errors and structural issues in your sitemap.

What is the best way to generate a standards-compliant XML sitemap for a large website?▼

Generating a standards-compliant XML sitemap for large catalogs uses industry templates with interactive planning and quality gates. This process automatically splits URLs into scalable sitemap index files and outputs sitemap.xml with STRUCTURE.md documentation.

How does sitemap generation handle scalability for large URL catalogs?▼

Sitemap generation handles scalability by splitting large URL sets into multiple sitemap.xml files and a parent sitemap index. This structure ensures search engines can efficiently process large catalogs without exceeding crawl limits.

Can I compare crawled pages with my sitemap to detect indexing gaps?▼

Yes, you can compare crawled pages with your existing sitemap to detect indexing gaps. This analysis identifies missing URLs and discrepancies between your actual site structure and the submitted sitemap.

Do I need to update robots.txt when adding a new sitemap.xml file?▼

Yes, your robots.txt file should reference the new sitemap.xml so search engines can automatically discover it. Sitemap validation includes verifying this robots.txt reference to ensure proper search engine indexing signals.

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