SEO On-Page Audit: bulk on-page SEO checker for title, meta, H1, canonical, OG and schema

Audit any list of page URLs for on-page SEO signals, title and meta description (with lengths), H1/H2, canonical, hreflang, Open Graph, Twitter cards, JSON-LD types, internal/external/nofollow link counts, images missing alt, approximate word count, plus a short issues list. Paste URLs you already have (or pipe output from the Sitemap Scraper); the Actor fetches only those pages. No site-wide crawl, no login, no paywall bypass. ~$1.50 per 1,000 pages audited; failed or unreachable URLs are free.

What you get from the SEO On-Page Audit

• Core tags, title, metaDescription, metaRobots, metaViewport, charset, html lang, with character lengths for title and description.
• Canonical & hreflang, canonical, canonicalMatchesUrl, and every hreflang alternate found in <link rel="alternate">.
• Social + structured data, Open Graph (og:*), Twitter card tags, and JSON-LD @type values (raw snippet truncated if huge).
• Structure signals, H1/H2 texts and H1–H6 counts, internal vs external vs nofollow link counts, images total / missing alt, approximate body word count.
• Actionable issues, short flags like missing title, title too long >60, multiple h1, missing canonical, missing meta description.

Sample output (JSON, real run on apify.com, 17 Oct 2026, shortened)

{
  "url": "https://apify.com/",
  "finalUrl": "https://apify.com/",
  "statusCode": 200,
  "redirected": false,
  "title": "Apify: Marketplace of ready-to-run tools for AI",
  "titleLength": 47,
  "metaDescription": "Thousands of tools to automate your business. Get real-time web data, track competitors, generate leads, and integrate your apps and AI agents.",
  "metaDescriptionLength": 143,
  "canonical": "https://apify.com/",
  "canonicalMatchesUrl": true,
  "headings": { "h1": ["90,153 tools for your AI"], "h1Count": 1, "h2Count": 11, "h3Count": 20 },
  "links": { "internal": 78, "external": 58, "nofollow": 20 },
  "images": { "total": 78, "missingAlt": 0 },
  "wordCount": 1577,
  "issues": [],
  "error": null
}

Download the dataset as CSV, Excel or JSON, or pipe it to Google Sheets, Make, Zapier, n8n, webhooks or the Apify API.

How to configure the SEO On-Page Audit

1. Paste page URLs, one per line (or pass [{ "url": "…" }] from another Actor / sitemap export).
2. Optional: raise Max URLs (default 100, max 5000) or turn off Respect robots.txt.
3. Run. Every page that returns an HTTP status (including 4xx/5xx) is charged; unreachable / robots-blocked rows are free.

Example input

{
  "startUrls": ["https://example.com", "https://apify.com"],
  "maxUrls": 100,
  "respectRobotsTxt": true
}

Example input: audit a sitemap export politely

{
  "startUrls": [{ "url": "https://example.com/" }, { "url": "https://example.com/pricing" }],
  "maxUrls": 1000,
  "respectRobotsTxt": true,
  "maxConcurrency": 3
}

Setting	Default	Notes
startUrls	(required)	Pages you supply, not discovered via search
maxUrls	100	Hard cap per run (max 5000)
respectRobotsTxt	true	Skip disallowed paths
maxConcurrency	5	Pages in parallel (keep low for politeness)

Common use cases

• Bulk SEO QA, check title/meta/H1/canonical across a sitemap export before a migration or redesign.
• Agency reporting, attach issues columns to client sheets without opening each URL by hand.
• Content ops, find missing OG/Twitter tags and thin pages (low wordCount) on a URL list.
• Pipeline with TinyRex, Sitemap Scraper → this Actor → export CSV; pair with Contact Details Extractor or Tech Stack Detector for enrichment.

Pricing (failed = free)

Pay per event:

• Page audit (page-audit): ~$0.0015 per page that returns an HTTP status (including 4xx/5xx, you still get the audit row). ≈ $1.50 / 1k pages.
• Free: network failures / unreachable hosts (statusCode 0), robots.txt blocks.

Bronze/Silver/Gold tier discounts apply on the Store. Set a max cost per run; the Actor stops gracefully when it is reached.

Limitations

• Public HTML only. Heavy JS-rendered titles/meta may be missed (no headless browser).
• Datacenter IP blocks may need a proxy.
• Issue rules are heuristic defaults (title ≤60, description 50–160, single H1), adjust your process if your style guide differs.

FAQ: SEO On-Page Audit

What is an on-page SEO audit? A check of the signals on each page itself (title tag, meta description, headings, canonical, structured data, image alt text, internal links), as opposed to off-page signals like backlinks. This Actor returns those signals for every URL as one row, with an issues list you can filter in a spreadsheet.

What title tag and meta description length should I aim for? Google truncates by pixel width, so there's no exact limit, but the Actor flags titles over 60 characters and meta descriptions outside 50–160 characters as a practical rule of thumb. Both lengths are in the output so you can apply your own thresholds.

How do I audit every URL in a sitemap? Run Sitemap Scraper first, then pass its url field into startUrls (string list or { url } objects). Cap with maxUrls if needed.

Do 404 pages cost money? Yes, if the server responds with a status code, you get a dataset row (statusCode, issues) and pay the page-audit event. Unreachable hosts (DNS/timeout) are free.

Does it respect robots.txt? Yes by default (respectRobotsTxt: true). Disallowed URLs are skipped, recorded with an error, and not charged.

Is this a full site crawl? No. It only fetches the URLs you supply. For site-wide coverage, feed it a sitemap export.

Does it work with AI agents / MCP? Yes. Connect Claude, Cursor, VS Code, n8n or any MCP client to https://mcp.apify.com?tools=tinyrex/seo-on-page-audit and ask e.g. "Audit on-page SEO for https://example.com and https://apify.com".

📘 Step-by-step guide with Python, JavaScript, curl and MCP examples: How to audit titles, meta descriptions, H1s and canonicals for hundreds of pages at once

Related actors

• Sitemap Scraper, every URL from XML sitemaps (ideal input for this Actor)
• Contact Details Extractor, emails, phones and socials from the same domains
• Tech Stack Detector, technologies used on the page / domain

Built by TinyRex. Questions or feature requests? Open an issue on the Actor page.