SEO Optimizer
ailabs-393/ai-labs-claude-skills
This skill should be used when analyzing HTML/CSS websites for SEO optimization, fixing SEO issues, generating SEO reports, or implementing SEO best practices.
Audit web pages for SEO issues in a real browser. An agent skill from hanzili/hanzi-browse.
Install SEO Checker
$ npx skills add hanzili/hanzi-browse --skill seo-checker -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hanzili/hanzi-browse seo-checker --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/hanzili/hanzi-browse.git skills-src && mkdir -p .claude/skills && cp -r skills-src/server/skills/seo-checker .claude/skills/seo-checker && rm -rf skills-srcUse ~/.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/
Install the "seo-checker" agent skill from https://github.com/hanzili/hanzi-browse/tree/main/server/skills/seo-checker into .claude/skills/seo-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-checker", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/hanzili/hanzi-browse/tree/main/server/skills/seo-checkerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add hanzili/hanzi-browse --skill seo-checker -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hanzili/hanzi-browse seo-checker --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hanzili/hanzi-browse.git skills-src && mkdir -p .agents/skills && cp -r skills-src/server/skills/seo-checker .agents/skills/seo-checker && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "seo-checker" agent skill from https://github.com/hanzili/hanzi-browse/tree/main/server/skills/seo-checker into .agents/skills/seo-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-checker", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hanzili/hanzi-browse --skill seo-checker -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hanzili/hanzi-browse seo-checker --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hanzili/hanzi-browse.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/server/skills/seo-checker .cursor/skills/seo-checker && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "seo-checker" agent skill from https://github.com/hanzili/hanzi-browse/tree/main/server/skills/seo-checker into .cursor/skills/seo-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-checker", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/hanzili/hanzi-browse.git --path server/skills/seo-checker--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add hanzili/hanzi-browse --skill seo-checker -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hanzili/hanzi-browse seo-checker --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hanzili/hanzi-browse.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/server/skills/seo-checker .gemini/skills/seo-checker && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "seo-checker" agent skill from https://github.com/hanzili/hanzi-browse/tree/main/server/skills/seo-checker into .gemini/skills/seo-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-checker", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install hanzili/hanzi-browse seo-checkerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add hanzili/hanzi-browse --skill seo-checker -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hanzili/hanzi-browse.git skills-src && mkdir -p .github/skills && cp -r skills-src/server/skills/seo-checker .github/skills/seo-checker && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "seo-checker" agent skill from https://github.com/hanzili/hanzi-browse/tree/main/server/skills/seo-checker into .github/skills/seo-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-checker", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hanzili/hanzi-browse --skill seo-checker -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hanzili/hanzi-browse seo-checker --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hanzili/hanzi-browse.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/server/skills/seo-checker .opencode/skills/seo-checker && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "seo-checker" agent skill from https://github.com/hanzili/hanzi-browse/tree/main/server/skills/seo-checker into .opencode/skills/seo-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-checker", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
seo-checker- GitHub stars
- 177
- Token cost
- ~1.9k tokens
- SKILL.md length
- 802 words
- Files
- 1
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Audit web pages for SEO issues in a real browser. An agent skill from hanzili/hanzi-browse.
- Works in 5 steps: Source Review (before browser) → Meta & Head Tags (browser) → Content Structure (browser) → …
- Tasks that involve On-page SEO
- SKILL.md covers Tool Selection Rule, Before Starting, What You Need and Audit Phases, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
SEO Checker is an agent skill from hanzili/hanzi-browse. Audit web pages for SEO issues in a real browser. Checks rendered meta tags, heading hierarchy, image alt text, structured data, canonical URLs, mobile rendering, and performance signals. Produces a scored report with specific findings and fixes. Read-only — inspects, doesn't modify. Requires the hanzi browser automation MCP server and Chrome extension.
Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Marketing & SEO, covering On-page SEO, Browser automation and SEO audit. It works with Model Context Protocol and Chrome Extensions. The repository describes itself as: let any ai agent use the local browser.
When your agent uses it
- Tasks that involve On-page SEO
- Tasks that involve Browser automation
- Tasks that involve SEO audit
Example prompts
- “/seo-checker”
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Source Review (before browser)
- Meta & Head Tags (browser)
- Content Structure (browser)
- Structured Data (browser)
- Mobile & Performance (browser)
What it can do on your machine
Read from SKILL.md and the folder at commit ce6e10d. 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 (its code samples are javascript).
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):
chromewebstore.google.com
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
SEO Checker loads about 1.9k tokens when it runs. Until then it costs about 92 tokens; SKILL.md has 802 words of instructions outside code blocks.
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 802 words (~1,893 tokens).
“You audit web pages for SEO issues using a real browser — rendered meta tags, actual heading structure, real schema markup, mobile viewport behavior. This skill is read-only: observe and report, don't modify.”
- name
- seo-checker
- category
- productivity
Files
Just SKILL.md in server/skills/seo-checker of hanzili/hanzi-browse.
Open the folder on GitHubat commit ce6e10d
Compare with similar skills
SEO Checker 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| SEO Checker this skillhanzili/hanzi-browse | 177 | — | ~1.9k | Automated safety check: Pass | Custom licence | |
| SEO Optimizerailabs-393/ai-labs-claude-skills | 455 | 1 repos | ~3.2k | Automated safety check: Pass | MIT | |
| Universal SEO AnalysisAgriciDaniel/claude-seo | 19k | — | ~4.9k | Automated safety check: Pass | MIT | |
| SEONexus-JPF/note-companion | 870 | — | ~2.2k | Automated safety check: Pass | MIT | |
| SEO Auditjosstei/maestro-orchestrate | 465 | — | ~218 | Automated safety check: Pass | Apache-2.0 | |
| SEO Audittextura-agency/next16-claude-starter | 133 | — | ~2.2k | Automated safety check: Notes | Unlicense |
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Audit a page or the whole site for technical and on-page SEO — crawlability, metadata, heading outline, structured data, internal linking, Core Web Vitals, and the animation-specific crawlability…
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When the user wants to plan, map, or restructure their website's page hierarchy, navigation, URL structure, or internal linking.
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Related
Works with
Categories
Questions about SEO Checker
What does SEO Checker do?
Audit web pages for SEO issues in a real browser. An agent skill from hanzili/hanzi-browse. SEO Checker is an agent skill from hanzili/hanzi-browse. Audit web pages for SEO issues in a real browser.
When should I use SEO Checker?
SEO Checker fits situations like: tasks that involve On-page SEO; tasks that involve Browser automation; tasks that involve SEO audit.
How do I install SEO Checker in Claude Code?
Run `npx skills add hanzili/hanzi-browse --skill seo-checker -a claude-code`. Or copy the skill folder (server/skills/seo-checker in hanzili/hanzi-browse) into .claude/skills/seo-checker in your project. Claude Code loads it when a task matches its description.
How do I install SEO Checker in Codex?
Run `npx skills add hanzili/hanzi-browse --skill seo-checker -a codex`. Or copy the skill folder (server/skills/seo-checker in hanzili/hanzi-browse) into .agents/skills/seo-checker in your project. Codex loads it when a task matches its description.
Can I use SEO Checker 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 hanzili/hanzi-browse --skill seo-checker -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/seo-checker, .gemini/skills/seo-checker, .github/skills/seo-checker and .opencode/skills/seo-checker in your project.
What does SEO Checker need to run?
SKILL.md names no scripts, command-line tools or credentials: SEO Checker is instructions for the agent only.
Does SEO Checker access the network?
SKILL.md names 1 domain. As links in the text: chromewebstore.google.com. This is read from the text; nothing was executed.
Is SEO Checker 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 SEO Checker use?
SEO Checker has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does SEO Checker use?
About 1.9k tokens (SKILL.md is roughly 7.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to SEO Checker?
Skills that share tags, products or a category with SEO Checker: SEO Optimizer (ailabs-393/ai-labs-claude-skills, 455 stars), Universal SEO Analysis (AgriciDaniel/claude-seo, 19k stars), SEO (Nexus-JPF/note-companion, 870 stars) and SEO Audit (josstei/maestro-orchestrate, 465 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains SEO Checker?
hanzili (a GitHub user) maintains it in hanzili/hanzi-browse, which has 177 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on April 25, 2026.
Source: hanzili/hanzi-browse on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.