SEO Checker
hanzili/hanzi-browse
Audit web pages for SEO issues in a real browser. An agent skill from hanzili/hanzi-browse.
Detect existing JSON-LD structured data on a page, validate against Google's rich-result requirements, and generate missing schema markup (Article, Product, LocalBusiness, FAQPage, BreadcrumbList).
$ npx skills add seranking/seo-skills --skill seo-schema -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install seranking/seo-skills seo-schema --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/seranking/seo-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/seo-schema .claude/skills/seo-schema && 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-schema" agent skill from https://github.com/seranking/seo-skills/tree/main/skills/seo-schema into .claude/skills/seo-schema/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-schema", 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/seranking/seo-skills/tree/main/skills/seo-schemaType 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 seranking/seo-skills --skill seo-schema -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install seranking/seo-skills seo-schema --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/seranking/seo-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/seo-schema .agents/skills/seo-schema && 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-schema" agent skill from https://github.com/seranking/seo-skills/tree/main/skills/seo-schema into .agents/skills/seo-schema/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-schema", 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 seranking/seo-skills --skill seo-schema -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install seranking/seo-skills seo-schema --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/seranking/seo-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/seo-schema .cursor/skills/seo-schema && 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-schema" agent skill from https://github.com/seranking/seo-skills/tree/main/skills/seo-schema into .cursor/skills/seo-schema/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-schema", 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/seranking/seo-skills.git --path skills/seo-schema--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 seranking/seo-skills --skill seo-schema -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install seranking/seo-skills seo-schema --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/seranking/seo-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/seo-schema .gemini/skills/seo-schema && 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-schema" agent skill from https://github.com/seranking/seo-skills/tree/main/skills/seo-schema into .gemini/skills/seo-schema/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-schema", 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 seranking/seo-skills seo-schemaInstalls 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 seranking/seo-skills --skill seo-schema -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/seranking/seo-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/seo-schema .github/skills/seo-schema && 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-schema" agent skill from https://github.com/seranking/seo-skills/tree/main/skills/seo-schema into .github/skills/seo-schema/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-schema", 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 seranking/seo-skills --skill seo-schema -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install seranking/seo-skills seo-schema --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/seranking/seo-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/seo-schema .opencode/skills/seo-schema && 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-schema" agent skill from https://github.com/seranking/seo-skills/tree/main/skills/seo-schema into .opencode/skills/seo-schema/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "seo-schema", 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.
seo-schemaDetect existing JSON-LD structured data on a page, validate against Google's rich-result requirements, and generate missing schema markup (Article, Product, LocalBusiness, FAQPage, BreadcrumbList).
SEO Schema is an agent skill from seranking/seo-skills. Detect existing JSON-LD structured data on a page, validate against Google's rich-result requirements, and generate missing schema markup (Article, Product, LocalBusiness, FAQPage, BreadcrumbList). Produces paste-ready JSON-LD script blocks. Use when the user asks for "schema markup", "structured data", "JSON-LD", "rich results", "schema validation", or "fix the schema on this page".
Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `references/google-rich-results.md`, `templates/article.json` and `templates/breadcrumb-list.json`).
It sits in Marketing & SEO, covering Schema markup. It works with Model Context Protocol and Firecrawl. The repository describes itself as: Claude SEO Skills — production Claude Agent Skills for the SE Ranking MCP server. Content briefs, AI Search share of voice, audits, backlink gaps, keyword clusters, schema… The licence is MIT.
8 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit fd6d140. It shows what the files ask for, not the result of running them.
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.
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Hosts in commands or code, which the agent is likely to contact:
search.google.comschema.orgFrom URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
SEO Schema loads about 2.4k tokens when it runs, and up to ~4.1k if it reads all its reference files. Until then it costs about 99 tokens; SKILL.md has 964 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.
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.
The full file from seranking/seo-skills at commit fd6d140, republished under its MIT licence (© seranking). 964 words, ~2,363 tokens.
.claude/skills/seo-schema/SKILL.md (or your agent's skills folder). This skill also uses 6 other files; get the full folder from GitHub.Example output: examples/seo-schema-budgetbytes-slow-cooker-chicken-noodle-soup-20260514/SCHEMA.md
Detect, validate, and generate Schema.org JSON-LD for a page. Output is paste-ready <script> blocks the user can drop into their CMS or page template, plus a validation report on what's currently present and what's broken.
mcp__firecrawl-mcp__firecrawl_scrape (raw HTML access). WebFetch returns markdown only — every <script type="application/ld+json"> block is stripped before the skill ever sees it. Without Firecrawl, the skill can still generate new schema from intent detection (steps 4–6) but cannot detect or validate what's already on the page (steps 2–3, 7).Fetch HTML mcp__firecrawl-mcp__firecrawl_scrape (preferred) or degrade
--no-firecrawl to force the degraded path (generate-only mode) for credit conservation.waitFor: 2000 (or a CSS selector for the main content) so the JS-rendered DOM is captured. Use the response's html for JSON-LD parsing in step 2 and metadata for canonical/robots cross-reference.SCHEMA.md: Existing-schema detection: skipped — Firecrawl required (WebFetch returns markdown only). Install via extensions/firecrawl/install.sh.Detect existing schema (requires Firecrawl HTML from step 1)
html: extract every <script type="application/ld+json"> block.@type.itemscope/itemprop) and RDFa (typeof/property) — flag as legacy and recommend migration to JSON-LD (Google's stated preference).Existing-schema detection skipped in 01-detected.md.Validate against Google's spec
references/google-rich-results.md.@type, check required and recommended properties.@context, dates not in ISO 8601, prices as numbers instead of strings, availability as plain text instead of schema.org URL, telephone not in international format.Detect page intent
/blog/, /products/, /contact/, /how-to/, /faq/).<title> and <h1> tone.Generate missing JSON-LD
templates/:article.json — for editorial/blog contentproduct.json — for product/SKU pageslocal-business.json — for brick-and-mortar landing pagesfaq-page.json — for explicit Q&A blocks (gov/health allowlist only — see references/google-rich-results.md)breadcrumb-list.json — for any page with breadcrumb navigation{REPLACE: ...} so the user knows to complete it.HowTo — Google retired HowTo rich results in September 2023 (mobile + desktop). The schema can still ship for semantic clarity, but expect zero rich-result uplift; flag this in the recommendation rationale rather than treating HowTo as a live option.Validate generated JSON-LD
{REPLACE: ...}.Optional: benchmark against top SERP results DATA_getSerpResults + mcp__firecrawl-mcp__firecrawl_scrape
<title> or user input).html and list detected @types. This produces real schema data, not inferences from markdown.Competitor benchmark skipped — Firecrawl required to read JSON-LD from competitor pages. into 04-competitor-benchmark.md.Synthesise SCHEMA.md
<script> blocks ready to paste.Create a folder seo-schema-{target-slug}-{YYYYMMDD}/ with:
seo-schema-{target-slug}-{YYYYMMDD}/
├── 01-detected.md (existing schema, validation results)
├── 02-recommended.md (which types this page should add and why)
├── 03-generated/
│ ├── article.jsonld
│ ├── faq-page.jsonld
│ └── ... (per generated type)
├── 04-competitor-benchmark.md (only if step 7 ran)
└── SCHEMA.md (deliverable: paste-ready blocks + install instructions)SCHEMA.md follows this shape:
# Schema Markup: {URL}
> Snapshot dated {YYYY-MM-DD}.
## Currently present
- `Article` — valid ✓
- `BreadcrumbList` — invalid ✗ (missing `position` on item 2)
- ...
## Recommended additions
- `FAQPage` — page has 6 visible Q&A blocks but no FAQ schema. Adding this is eligible for FAQ rich results (subject to Google's 2024+ tightening — see references/google-rich-results.md).
- `HowTo` — ...
## Paste these into the `<head>` of the page
### FAQPage
\`\`\`html
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [...]
}
</script>
\`\`\`
### ... (per generated block)
## Validation pass
- All generated blocks parse cleanly ✓
- All required fields filled ({n} {REPLACE: ...} placeholders remain — see below)
- {REPLACE: ...} placeholders to fill manually:
- article.jsonld → `image` (need a hero image URL ≥ 1200×800)
- ...
## Install
1. Copy each `<script>` block above.
2. Paste into the `<head>` of the relevant page (or the global `<head>` template, gated by page type).
3. Test with [Google's Rich Results Test](https://search.google.com/test/rich-results).
4. Submit the URL to GSC for re-indexing if changes are critical.<head> or top of <body>. Don't bury it.references/google-rich-results.md is dated. If it's >6 months old when you run this skill, flag staleness in the output and recommend the user verify against current docs.image is required. If the page has no obvious hero image, leave the {REPLACE: hero image URL} placeholder rather than guessing.DATA_getSerpResults. Firecrawl costs are separate: 1 credit for the target URL, +10 credits when step 7 runs.seo-firecrawl on the URL and grep META.md for the expected @types.© seranking, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 6 other files (references) in skills/seo-schema of seranking/seo-skills.
Open the folder on GitHubat commit fd6d140
SEO Schema 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 Schema this skillseranking/seo-skills | 160 | — | ~2.4k | Automated safety check: Pass | MIT | |
| SEO Checkerhanzili/hanzi-browse | 177 | — | ~1.9k | Automated safety check: Pass | Custom licence | |
| SEONexus-JPF/note-companion | 870 | — | ~2.2k | Automated safety check: Pass | MIT | |
| Firecrawl Site Crawl ExtensionAgriciDaniel/claude-seo | 18k | 1 repos | ~2k | Automated safety check: Pass | MIT | |
| Web Scrapersandbaseai/sandbase-skills | 201 | — | ~746 | Automated safety check: Pass | Apache-2.0 | |
| SEO GeoReScienceLab/opc-skills | 1.8k | 4 repos | ~2.1k | Automated safety check: Pass | Apache-2.0 |
hanzili/hanzi-browse
Audit web pages for SEO issues in a real browser. An agent skill from hanzili/hanzi-browse.
Nexus-JPF/note-companion
Use and read this skill immediately if the user request is in any way related to SEO or a site's organic search or AI search presence.
AgriciDaniel/claude-seo
Crawls, maps, and scrapes an entire site through the Firecrawl MCP server for broken-link checks and content inventories.
sandbaseai/sandbase-skills
Scrape web pages, crawl sites, extract structured data, and capture screenshots through SandBase.
ReScienceLab/opc-skills
SEO & GEO (Generative Engine Optimization) for websites. An agent skill from ReScienceLab/opc-skills.
every-app/open-seo
Test a candidate OpenSEO skill end to end by running fresh, isolated Codex sessions against the local backend and scoring the reports they save.
seranking/seo-skills
Direct access to Google's own SEO data via Search Console (Search Analytics, URL Inspection, Sitemaps), PageSpeed Insights v5, CrUX field data with 25-week history, Indexing API v3, GA4 organic…
seranking/seo-skills
SE Ranking API integration architect. An agent skill from seranking/seo-skills.
seranking/seo-skills
E-E-A-T + CITE quality audit for an EXISTING piece of content.
seranking/seo-skills
Generate a writer-ready SEO content brief from a target domain and topic.
seranking/seo-skills
Capture an SEO baseline snapshot for a domain or URL, then on later runs compare the current state and surface regressions.
seranking/seo-skills
Ad-hoc web scraping, site mapping, and full-site crawling via Firecrawl MCP.
Works with
Categories
Detect existing JSON-LD structured data on a page, validate against Google's rich-result requirements, and generate missing schema markup (Article, Product, LocalBusiness, FAQPage, BreadcrumbList). SEO Schema is an agent skill from seranking/seo-skills. Detect existing JSON-LD structured data on a page, validate against Google's rich-result requirements, and generate missing schema markup (Article, Product, LocalBusiness, FAQPage, BreadcrumbList).
SEO Schema fits situations like: the user asks for schema markup; structured data; schema validation; fix the schema on this page.
Run `npx skills add seranking/seo-skills --skill seo-schema -a claude-code`. Or copy the skill folder (skills/seo-schema in seranking/seo-skills) into .claude/skills/seo-schema in your project. Claude Code loads it when a task matches its description.
Run `npx skills add seranking/seo-skills --skill seo-schema -a codex`. Or copy the skill folder (skills/seo-schema in seranking/seo-skills) into .agents/skills/seo-schema in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add seranking/seo-skills --skill seo-schema -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-schema, .gemini/skills/seo-schema, .github/skills/seo-schema and .opencode/skills/seo-schema in your project.
SKILL.md names no scripts, command-line tools or credentials: SEO Schema is instructions for the agent only.
SKILL.md names 2 domains. In commands or code: search.google.com and schema.org; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.
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.
SEO Schema is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 2.4k tokens (SKILL.md is roughly 9.5k 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 1.8k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with SEO Schema: SEO Checker (hanzili/hanzi-browse, 177 stars), SEO (Nexus-JPF/note-companion, 870 stars), Firecrawl Site Crawl Extension (AgriciDaniel/claude-seo, 18k stars) and Web Scraper (sandbaseai/sandbase-skills, 201 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
seranking (a GitHub organization) maintains it in seranking/seo-skills, which has 160 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on June 25, 2026.
Source: seranking/seo-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.