Agent skill

Sitemap Domain

by thedaviddias in thedaviddias/Front-End-Checklist

A skill your agent uses when applies to sites that have recently migrated from HTTP to HTTPS, changed domain name, or have www/non-www redirect configurations.

MITAuto-check passedMarketing & SEO

Install Sitemap Domain

skills CLI
$ npx skills add thedaviddias/Front-End-Checklist --skill sitemap-domain -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install thedaviddias/Front-End-Checklist sitemap-domain --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sitemap-domain .claude/skills/sitemap-domain && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
sitemap-domain
GitHub stars
74k
Token cost
~531 tokens
SKILL.md length
236 words
Files
2 (incl. references)
Skills in repo
390
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when applies to sites that have recently migrated from HTTP to HTTPS, changed domain name, or have www/non-www redirect configurations.

  • Applies to sites that have recently migrated from HTTP to HTTPS
  • SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Changed domain name

What it does

Sitemap Domain is an agent skill from thedaviddias/Front-End-Checklist. Use when applies to sites that have recently migrated from HTTP to HTTPS, changed domain name, or have www/non-www redirect configurations. Use when sitemap submission reports low coverage.

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).

It sits in Marketing & SEO. The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.

When your agent uses it

  • Applies to sites that have recently migrated from HTTP to HTTPS
  • Changed domain name
  • Have www/non-www redirect configurations
  • Sitemap submission reports low coverage

Example prompts

  • “/sitemap-domain”

What it can do on your machine

Read from SKILL.md and the folder at commit e8d14d0. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • frontendchecklist.io

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Sitemap Domain loads about 531 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 51 tokens; SKILL.md has 236 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~51
When it runs · the whole SKILL.md, loaded when a task matches
~531
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 236 words, ~531 tokens.

Download SKILL.mdSave it as .claude/skills/sitemap-domain/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
sitemap-domain
description
Use when applies to sites that have recently migrated from HTTP to HTTPS, changed domain name, or have www/non-www redirect configurations. Use when sitemap submission reports low coverage.
metadata.category
seo
metadata.priority
medium
metadata.difficulty
beginner
metadata.estimatedTime
10
metadata.source
frontendchecklist.io
metadata.url
https://frontendchecklist.io/rules/seo/sitemap-domain

Keep sitemap URLs on the correct domain

Google ignores sitemap entries from domains it cannot verify as yours — cross-domain URLs are simply skipped, meaning those pages lose the crawl-discovery benefit of the sitemap.

Quick Reference

  • Every <loc> URL must use the same domain and protocol (https://www.example.com) as the sitemap file itself
  • Cross-domain URLs in a sitemap are ignored by Google
  • Mixing http:// and https:// URLs in one sitemap creates conflicting signals
  • Mixing www and non-www variants indicates a canonicalization issue to fix first

Check

Parse all <loc> values in the sitemap and extract the protocol and hostname. Flag any URL whose protocol or hostname differs from the sitemap's own URL. Common mismatches: http vs https, www vs non-www, old domain vs new domain.

Fix

Update all <loc> URLs to use the canonical-url protocol and hostname. If the site is on https://www.example.com, every sitemap URL must start with https://www.example.com/. Regenerate and resubmit the sitemap.

Explain

Explain why Google restricts sitemap URLs to the same domain, how cross-domain URLs are silently dropped, and how domain mismatches in a sitemap reveal underlying canonicalization problems.

Code Review

Review metadata generation, rendered HTML, structured data, and response headers related to Keep sitemap URLs on the correct domain. Flag exact routes or templates where search-facing output violates the rule, and describe how to verify the final page output.


For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/rules/seo/sitemap-domain

© thedaviddias, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/sitemap-domain of thedaviddias/Front-End-Checklist.

  • SKILL.md
  • references/rule.md

Open the folder on GitHubat commit e8d14d0

Compare with similar skills

Sitemap Domain next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Sitemap Domain compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Sitemap Domain this skillthedaviddias/Front-End-Checklist74k—~531Automated safety check: PassMIT
Geo Fundamentalswasp-lang/wasp19k9 repos~861Automated safety check: PassMIT
Ab Testingcoreyhaines31/marketingskills54k3 repos~3.1kAutomated safety check: PassMIT
Hreflang and International SEOAgriciDaniel/claude-seo19k5 repos~3.4kAutomated safety check: PassMIT
Referralscoreyhaines31/marketingskills54k2 repos~2.6kAutomated safety check: PassMIT
SEO GeoReScienceLab/opc-skills1.8k4 repos~2.1kAutomated safety check: PassApache-2.0

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Categories

Questions about Sitemap Domain

What does Sitemap Domain do?

A skill your agent uses when applies to sites that have recently migrated from HTTP to HTTPS, changed domain name, or have www/non-www redirect configurations. Sitemap Domain is an agent skill from thedaviddias/Front-End-Checklist. Use when applies to sites that have recently migrated from HTTP to HTTPS, changed domain name, or have www/non-www redirect configurations.

When should I use Sitemap Domain?

Sitemap Domain fits situations like: applies to sites that have recently migrated from HTTP to HTTPS; changed domain name; have www/non-www redirect configurations; sitemap submission reports low coverage.

How do I install Sitemap Domain in Claude Code?

Run `npx skills add thedaviddias/Front-End-Checklist --skill sitemap-domain -a claude-code`. Or copy the skill folder (skills/sitemap-domain in thedaviddias/Front-End-Checklist) into .claude/skills/sitemap-domain in your project. Claude Code loads it when a task matches its description.

How do I install Sitemap Domain in Codex?

Run `npx skills add thedaviddias/Front-End-Checklist --skill sitemap-domain -a codex`. Or copy the skill folder (skills/sitemap-domain in thedaviddias/Front-End-Checklist) into .agents/skills/sitemap-domain in your project. Codex loads it when a task matches its description.

Can I use Sitemap Domain in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add thedaviddias/Front-End-Checklist --skill sitemap-domain -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sitemap-domain, .gemini/skills/sitemap-domain, .github/skills/sitemap-domain and .opencode/skills/sitemap-domain in your project.

What does Sitemap Domain need to run?

SKILL.md names no scripts, command-line tools or credentials: Sitemap Domain is instructions for the agent only.

Does Sitemap Domain access the network?

SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.

Is Sitemap Domain safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Sitemap Domain use?

Sitemap Domain is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Sitemap Domain use?

About 531 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 965 tokens, read only when the agent opens those files.

What are the alternatives to Sitemap Domain?

Skills that share tags, products or a category with Sitemap Domain: Geo Fundamentals (wasp-lang/wasp, 19k stars), Ab Testing (coreyhaines31/marketingskills, 54k stars), Hreflang and International SEO (AgriciDaniel/claude-seo, 19k stars) and Referrals (coreyhaines31/marketingskills, 54k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sitemap Domain?

thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,421 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.

Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.