SEO AuditingFree to 500 URLsby Screaming Frog

Screaming Frog SEO Spider: Free Website Crawler for Technical Audits

Screaming Frog SEO Spider is a desktop website crawler for Windows, macOS, and Linux that audits technical SEO issues page by page. Its free version crawls up to 500 URLs per crawl with most core features. It runs locally on your machine (no account), but large sites, saved crawls, and integrations like PSI and Search Console APIs require the paid annual licence.

Provider:: Screaming Frog
Access:: Free to 500 URLs
Account:: Not required
Best for:: Finding technical issues across a whole site at once

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What is Screaming Frog SEO Spider?

While PageSpeed Insights tests one page, Screaming Frog crawls your site the way a search engine does — following links and recording the status, metadata, headings, and directives of every page it finds. The Internal tab becomes your audit: filter by 404s, redirect chains, missing titles, overlong descriptions, and noindexed pages.

The 500-URL free limit covers most small sites completely and gives larger sites a meaningful sample of key sections when crawled per directory. Its Visualisations tab draws crawl-path diagrams that make orphaned or deeply buried pages obvious.

Main features

Full site crawling
Discovers pages, images, CSS, and scripts while recording status codes, indexability, and metadata per URL.
Issue-focused tabs and filters
Pre-built views for client/server errors, redirects, duplicate titles, thin content, and hreflang problems.
Custom extraction and search
Pull any on-page element via XPath/CSS selectors and search crawl data with custom filters.
Sitemap generation
Generate XML sitemaps (and image sitemaps) directly from crawl data.
Crawl visualizations
Force-directed diagrams of site architecture revealing depth and orphan-page problems.

Is Screaming Frog SEO Spider free?

The free version crawls up to 500 URLs per crawl with core auditing features included. The paid licence (annual subscription — see screamingfrog.co.uk for current pricing) removes the URL cap and unlocks saved crawls, scheduling, JavaScript rendering, and API integrations (Search Console, Analytics, PageSpeed Insights).

No account needed. Download, install, and crawl — the free tier applies automatically until you enter a paid licence key.

How to use Screaming Frog SEO Spider

Download SEO Spider for your OS, install it, enter your homepage URL, and click Start.
Open the Response Codes tab: fix 4xx/5xx errors first, then review the Redirects (3xx) tab for chains and loops.
Check Page Titles > Missing/Duplicate and Meta Description > Missing to find metadata gaps at scale.
Use the Directives tab to review noindex/nofollow/canonical implementation across templates.
Export issues to CSV, fix in batches, and re-crawl to verify — always crawl staging before big launches too.

Advantages and limitations

Where it shines

Free 500-URL crawls cover most small sites fully.
Fast, local, and private — your data never leaves your machine.
The closest thing to seeing your site through a crawler's eyes.
Exports make developer handoffs precise (URL + issue + location).

Where it falls short

500-URL cap means large sites need the paid licence or section-by-section crawls.
Desktop app — speed and capacity depend on your machine.
Learning curve: the tab-heavy UI overwhelms first-time users.
JavaScript rendering and API integrations are paid features.

Best use cases

Site owners
Run a monthly 500-URL crawl to catch broken links and missing titles before they accumulate.
Migrators
Crawl before and after redesigns; diff the URL lists to catch dropped pages and redirect gaps.
Freelancers
Attach crawl exports to audits — quantified issue lists justify fixes better than opinions.

Alternatives to Screaming Frog SEO Spider

Bing Webmaster Tools
Free Site Scan auditing for verified small sites. Official site
Google Search Console
Google's own coverage data to corroborate crawl findings. Official site
PageSpeed Insights
Page-level performance depth the crawler doesn't provide. Official site

Screaming Frog SEO Spider FAQ

Is Screaming Frog free?

Yes, up to 500 URLs per crawl with no time limit and no account. Larger crawls and advanced features (rendering, APIs, scheduling) need the paid annual licence.

Does it work on Mac and Windows?

Yes — native versions exist for Windows, macOS, and Linux. Crawling speed depends on your machine and connection.

Will crawling harm my site?

Normal crawls are gentle, but set a polite crawl speed for small shared-hosting sites and avoid crawling during peak hours. The app lets you limit threads and rate.

Sources and official documentation

Official sources are listed separately from RankMeDaily's commentary above. Product details verified 2026-10-13; confirm current pricing and limits on the provider's site.