# SEO Audit API: On-Page SEO Checker, Meta Tags & Site Audit (`plainrows/seo-audit-api`) Actor

SEO audit API and MCP tool: on-page SEO checker for up to 1,000 URLs per run. One row per page: HTTP status, title and meta description with length, H1, canonical, nofollow, word count, links, missing image alt, load time, on-page score, failed checks. Pay per page, plus a small fee per run.

- **URL**: https://apify.com/plainrows/seo-audit-api.md
- **Developed by:** [PlainRows](https://apify.com/plainrows) (community)
- **Categories:** SEO tools, Developer tools, Marketing
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $2.00 / 1,000 page auditeds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## SEO Audit API: On-Page SEO Checker, Meta Tags & Site Audit

SEO audit API and MCP tool: give a list of URLs, get one row per page with the on-page SEO data you check by hand today: HTTP status, title and meta description (with length), H1, canonical, a nofollow flag, word count, internal and external links, a flag for images missing alt text, load time, an on-page score (0-100) and the list of failed checks.

### What you get

| Field | Example |
|---|---|
| `url` | `https://example.com/blog/post` |
| `audited` | `true` (charged) or `false` (free row) |
| `statusCode` | `200` |
| `onpageScore` | `87.46` |
| `title`, `titleLength` | `How to audit a page \| Example`, `29` |
| `description`, `descriptionLength` | `A short guide to on-page SEO audits.`, `36` |
| `h1`, `h1Count` | `["How to audit a page"]`, `1` |
| `canonical` | `https://example.com/blog/post` |
| `metaRobotsFollow` | `true` |
| `wordCount` | `1012` |
| `internalLinks`, `externalLinks` | `42`, `7` |
| `imagesCount`, `hasImagesWithoutAlt` | `5`, `true` |
| `loadTimeMs`, `timeToInteractiveMs` | `1430`, `812` |
| `failedChecks` | `["no_image_alt", "has_render_blocking_resources"]` |

`failedChecks` lists only checks that signal a problem: `no_h1_tag`, `title_too_long`, `title_too_short`, `no_description`, `no_title`, `no_image_alt`, `high_loading_time`, `is_4xx_code`, `is_redirect`, `low_content_rate`, `duplicate_meta_tags`, `seo_unfriendly_url` and more.

### Input

```json
{ "urls": ["https://apify.com", "example.com/pricing"] }
```

Up to 1,000 URLs per run (50 on the free Apify plan). Each URL is one page: the Actor audits the pages you list, it does not crawl the whole site.

### Pricing

Pay per page audited, plus a small **Actor start** fee per run (see the Pricing tab). Pages are charged only when really read: broken pages (404, 500), redirects, URLs the source refuses and invalid URLs get a free row with the reason in `error`.

### Use it as an MCP tool

AI agents (Claude, Cursor, ChatGPT) can call this Actor through the Apify MCP server: ask "audit the on-page SEO of these 10 URLs" and get the rows back.

### Run summary

Each run stores a summary in the key-value store (`OUTPUT`): URLs submitted, pages audited, pages not audited (free), refused URLs, duplicates and invalid inputs, and anything skipped because of the free-plan or budget limit.

### Limits

- One page per URL, no JavaScript rendering: content added by scripts after load is not seen.
- Sites that block automated visitors return a free row.
- Duplicate titles or descriptions across pages are not detected (each page is audited alone).

### More PlainRows tools

Same pay-per-result pricing, same clean JSON, built to chain together in n8n, Make, Zapier or AI agents.

- **SEO and keywords:** [Keyword Search Volume, CPC & Difficulty](https://apify.com/plainrows/keyword-search-volume) · [Keyword Planner Alternative (Bulk Search Volume & CPC)](https://apify.com/plainrows/keyword-planner-alternative) · [Google Keyword Planner API (Google Ads Search Volume & CPC)](https://apify.com/plainrows/google-keyword-planner-api) · [Bing Keyword Search Volume & CPC](https://apify.com/plainrows/bing-keyword-search-volume) · [Keyword Ideas Generator](https://apify.com/plainrows/keyword-ideas-generator) · [Google Autocomplete & People Also Ask](https://apify.com/plainrows/google-autocomplete-questions) · [Google Trends Explorer](https://apify.com/plainrows/google-trends-explorer) · [Google Trends Keyword Discovery (Rising & Related)](https://apify.com/plainrows/google-trends-keyword-discovery) · [Website Organic Traffic & Top Keywords](https://apify.com/plainrows/domain-seo-overview) · [Competitor Keywords API (Ranked Keywords)](https://apify.com/plainrows/competitor-keywords-api) · [Bulk Website Traffic Checker](https://apify.com/plainrows/website-traffic-checker) · [SEO Competitors & Keyword Gap Finder](https://apify.com/plainrows/seo-competitors-keyword-gap) · [PPC Competitor Keywords (SpyFu Alternative)](https://apify.com/plainrows/ppc-competitor-keywords) · [Bulk Domain Authority Checker](https://apify.com/plainrows/domain-authority-checker) · [Backlink Checker](https://apify.com/plainrows/backlink-checker) · [Backlink API (Referring Domains & Backlinks Data)](https://apify.com/plainrows/backlink-api) · [Broken Link Checker](https://apify.com/plainrows/broken-link-checker) · [AI Search Visibility Tracker (ChatGPT, Gemini, AI Mode)](https://apify.com/plainrows/ai-search-brand-visibility) · [AI Overview Tracker (Google AI Overview Citations)](https://apify.com/plainrows/ai-overview-tracker) · [Perplexity Search API (Answers & Citations)](https://apify.com/plainrows/perplexity-search-api) · [ChatGPT Search Scraper (Answers & Citations)](https://apify.com/plainrows/chatgpt-search-scraper) · [AI Citations Finder (LLM Mentions in ChatGPT & AI Overviews)](https://apify.com/plainrows/ai-citations-finder) · [Keyword Rank Checker (Google SERP Position)](https://apify.com/plainrows/keyword-rank-checker) · [Google Search API (SERP Scraper & Web Results)](https://apify.com/plainrows/google-search-api) · [Bing Search API (Bing SERP & Web Results)](https://apify.com/plainrows/bing-search-api) · [Google Maps Rank Tracker (Geo-Grid Local SEO)](https://apify.com/plainrows/google-maps-rank-tracker)
- **Leads and companies:** [Google Maps Scraper](https://apify.com/plainrows/google-maps-businesses) · [Google Maps Email Extractor](https://apify.com/plainrows/google-maps-email-extractor) · [Google Maps Businesses Without Website](https://apify.com/plainrows/google-maps-no-website-leads) · [Yellow Pages Australia Scraper](https://apify.com/plainrows/yellowpages-au-scraper) · [Website Technology Checker](https://apify.com/plainrows/website-tech-stack) · [Website Email Extractor](https://apify.com/plainrows/website-email-extractor) · [Contact Details Scraper (Emails, Phones, Socials)](https://apify.com/plainrows/contact-details-scraper) · [ATS Jobs Scraper (Workday, Greenhouse, Lever, Ashby)](https://apify.com/plainrows/ats-job-postings) · [Workday Jobs Scraper](https://apify.com/plainrows/workday-jobs-scraper) · [Greenhouse Jobs Scraper](https://apify.com/plainrows/greenhouse-jobs-scraper) · [Lever Jobs Scraper](https://apify.com/plainrows/lever-jobs-scraper) · [Ashby Jobs Scraper](https://apify.com/plainrows/ashby-jobs-scraper) · [Google Jobs Scraper](https://apify.com/plainrows/google-jobs-scraper) · [Reed.co.uk Jobs Scraper (UK)](https://apify.com/plainrows/reed-jobs-scraper) · [jobs.ch & jobup.ch Jobs Scraper (Switzerland)](https://apify.com/plainrows/jobs-ch-scraper) · [Arbeitsagentur Jobs Scraper (Germany)](https://apify.com/plainrows/arbeitsagentur-jobs-scraper) · [Gupy Jobs Scraper (Brazil)](https://apify.com/plainrows/gupy-jobs-scraper) · [Catho Jobs Scraper (Brazil)](https://apify.com/plainrows/catho-jobs-scraper) · [Vagas.com.br Jobs Scraper (Brazil)](https://apify.com/plainrows/vagas-jobs-scraper) · [Jobs.cz Scraper (Czech Republic)](https://apify.com/plainrows/jobs-cz-scraper) · [Remote Jobs Scraper (Himalayas, RemoteOK, Jobicy)](https://apify.com/plainrows/remote-jobs-aggregator) · [Google Ads Scraper (Transparency Center)](https://apify.com/plainrows/google-ads-transparency) · [Company Registry Lookup (SIRENE, LEI, Brreg)](https://apify.com/plainrows/company-registry-lookup) · [Public Tenders Search (EU TED & UK)](https://apify.com/plainrows/public-tenders-search)
- **E-commerce and travel:** [Amazon Product Search Scraper](https://apify.com/plainrows/amazon-product-search) · [Amazon Keyword Research (Search Volume & Reverse ASIN)](https://apify.com/plainrows/amazon-keyword-research) · [Google Shopping Prices Scraper](https://apify.com/plainrows/google-shopping-prices) · [Google Hotels Prices Scraper](https://apify.com/plainrows/google-hotels-prices) · [Google Hotels Scraper](https://apify.com/plainrows/google-hotels-scraper) · [Tripadvisor Reviews Scraper](https://apify.com/plainrows/tripadvisor-reviews) · [Trustpilot Reviews Scraper](https://apify.com/plainrows/trustpilot-reviews)
- **Marketplaces and classifieds:** [AliExpress Scraper](https://apify.com/plainrows/aliexpress-scraper) · [Kleinanzeigen Scraper (Germany)](https://apify.com/plainrows/kleinanzeigen-scraper) · [AutoScout24 Scraper (Cars, Europe)](https://apify.com/plainrows/autoscout24-scraper) · [Kijiji Scraper (Canada)](https://apify.com/plainrows/kijiji-scraper) · [Marktplaats Scraper (Netherlands)](https://apify.com/plainrows/marktplaats-scraper) · [Property Finder Scraper (UAE)](https://apify.com/plainrows/propertyfinder-scraper) · [Redfin Scraper (US Homes for Sale)](https://apify.com/plainrows/redfin-scraper) · [Otomoto Scraper (Polish Car Listings)](https://apify.com/plainrows/otomoto-scraper) · [Otodom Scraper (Poland Property)](https://apify.com/plainrows/otodom-scraper) · [Imovirtual Scraper (Portugal Property)](https://apify.com/plainrows/imovirtual-scraper) · [Standvirtual Scraper (Portugal Cars)](https://apify.com/plainrows/standvirtual-scraper) · [Immoweb Scraper (Belgium Property)](https://apify.com/plainrows/immoweb-scraper) · [Blocket Scraper (Sweden)](https://apify.com/plainrows/blocket-scraper) · [FINN.no Scraper (Norway)](https://apify.com/plainrows/finn-scraper) · [coches.net Scraper (Spain Cars)](https://apify.com/plainrows/coches-net-scraper) · [2dehands Scraper (Belgium)](https://apify.com/plainrows/2dehands-scraper) · [Storia Scraper (Romania Property)](https://apify.com/plainrows/storia-scraper) · [Autovit Scraper (Romania Cars)](https://apify.com/plainrows/autovit-scraper) · [FINN.no Car Scraper (Norway Cars)](https://apify.com/plainrows/finn-cars-scraper) · [DBA Scraper (Denmark)](https://apify.com/plainrows/dba-scraper) · [Tori.fi Scraper (Finland)](https://apify.com/plainrows/tori-scraper)
- **Content and media:** [Google News Scraper](https://apify.com/plainrows/google-news-scraper) · [YouTube Search Scraper](https://apify.com/plainrows/youtube-search-scraper) · [YouTube Search API (JSON)](https://apify.com/plainrows/youtube-search-api) · [YouTube Comments Scraper](https://apify.com/plainrows/youtube-comments-scraper) · [Google Images Scraper](https://apify.com/plainrows/google-images-scraper) · [Website Screenshot API](https://apify.com/plainrows/website-screenshot) · [PDF to Markdown Converter (PDF to Text for AI & RAG)](https://apify.com/plainrows/pdf-to-markdown) · [Google Maps Reviews Scraper](https://apify.com/plainrows/google-maps-reviews) · [Google Reviews Scraper](https://apify.com/plainrows/google-reviews-scraper) · [App Store & Google Play Reviews Scraper](https://apify.com/plainrows/app-reviews-scraper) · [App Store & Google Play App Details Scraper](https://apify.com/plainrows/app-details-scraper) · [Google Play Reviews Scraper](https://apify.com/plainrows/google-play-reviews-scraper) · [App Store Reviews Scraper](https://apify.com/plainrows/app-store-reviews-scraper)

# Actor input Schema

## `urls` (type: `array`):

Pages to audit, one per line: "https://example.com/page" or "example.com/page" (https:// is added). Duplicates are removed. Up to 1,000 URLs per run (50 on the free Apify plan). Each URL is one page: the Actor does not crawl the site.

## Actor input object example

```json
{
  "urls": [
    "https://apify.com",
    "https://example.com"
  ]
}
```

# Actor output Schema

## `results` (type: `string`):

No description

## `summary` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "urls": [
        "https://apify.com",
        "https://example.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("plainrows/seo-audit-api").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "urls": [
        "https://apify.com",
        "https://example.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("plainrows/seo-audit-api").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "urls": [
    "https://apify.com",
    "https://example.com"
  ]
}' |
apify call plainrows/seo-audit-api --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,plainrows/seo-audit-api"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/zNtl3ijD6ra5hzGU8/builds/s7fTvhH6WM4WK5WgZ/openapi.json