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seo-sitemap

Analyze existing XML sitemaps or generate new ones with industry templates.

Updated Sep 17, 2026
Search Tags:#sitemap#xml#seo#sitemap generation#robots.txt#search engine indexing#sitemap validation
One-click install
npx skills add https://github.com/coseto6125/claude-setup --skill seo-sitemap-coseto6125
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: seo-sitemap
Source: https://github.com/coseto6125/claude-setup/tree/main/skills/seo-sitemap
Command: npx skills add https://github.com/coseto6125/claude-setup --skill seo-sitemap-coseto6125

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Website owners and SEO practitioners struggle to know whether their XML sitemaps are valid, complete, and actually helping search engines index their pages, and building a well-structured sitemap from scratch requires knowing Google's limits and quality rules. ## Core Features & Use Cases - Sitemap Analysis: Discovers sitemaps via robots.txt declarations and common-path probing, then validates XML format, URL limits (50,000 URLs / 50MB), HTTP status codes, lastmod accuracy, and deprecated tags like priority and changefreq. - Extension Sitemap Validation: Checks image, video, and news sitemaps against their subtype-specific rules, including the 1,000-entry cap for news sitemaps. - Sitemap Generation: Builds new sitemaps from industry templates with quality gates that warn at 30+ location pages and hard-stop at 50+, then splits output with a sitemap index when limits are reached. - Use Case: A site audit reveals indexing problems; run the analysis mode to find that the sitemap contains redirected and noindexed URLs, then regenerate a clean sitemap split by content type. ## Quick Start Ask the assistant to analyze the sitemap for your website URL, or to generate a new sitemap for your site.

Frequently Asked Questions about seo-sitemap

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

FAQPage Schema
How do I check if my XML sitemap is valid?▼

Run sitemap analysis against your site URL to validate XML format, confirm all URLs return HTTP 200, and verify lastmod values are accurate W3C Datetimes. The check also flags deprecated priority and changefreq tags that Google ignores.

How do I generate a sitemap for a new website?▼

Provide your business type or let it auto-detect from your existing site, then an industry template is loaded and the structure is planned interactively. The output is valid XML, split with a sitemap index when it exceeds 50,000 URLs or 50MB.

What is the maximum number of URLs allowed in one sitemap?▼

A single sitemap file is limited to 50,000 URLs and 50MB uncompressed, whichever limit is hit first. News sitemaps are stricter, capped at 1,000 entries and only articles from the last two days.

Why is my sitemap not being found by search engines?▼

The sitemap may not be declared in robots.txt or may live at a non-standard path. Discovery reads every Sitemap declaration in robots.txt and probes common paths, reporting not found only after all candidates fail.

Should I include noindexed or redirected URLs in my sitemap?▼

No. Noindexed URLs are a high-severity issue and redirected URLs a medium-severity one; both should be removed or replaced with final canonical URLs. Sitemaps should contain only HTTPS, canonical, indexable pages returning HTTP 200.

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