Screaming Frog SEO Spider

The industry leading website crawler for Windows, macOS and Linux, trusted by thousands of SEOs and agencies worldwide for technical SEO site audits.

SEO Spider Tool

The Screaming Frog SEO Spider is a website crawler that audits your site for over 300 SEO issues to help improve both SEO, and UX.

Download & crawl 500 URLs for free, or buy a licence for £199 Per Year to remove the limit & access advanced features.

Read our getting started guide

What can you do with the SEO Spider Tool?

Identify over 300 SEO issues, warnings and opportunities to improve SEO, website health and user experience.

Find Broken Links

Crawl a website instantly and find broken links (404s) and server errors. Bulk export the errors and source URLs to fix, or send to a developer.

Audit Redirects

Find temporary and permanent redirects, identify redirect chains and loops, or upload a list of URLs to audit in a site migration.

Analyse Page Titles & Meta Data

Analyse page titles and meta descriptions during a crawl and identify those that are too long, short, missing, or duplicated across your site.

Discover Duplicate Content

Discover exact duplicate URLs with an md5 algorithmic check, partially duplicated elements such as page titles, descriptions or headings and find low content pages.

Extract Data with XPath

Collect any data from the HTML of a web page using CSS Path, XPath or regex. This might include social meta tags, additional headings, prices, SKUs or more!

Review Robots & Directives

View URLs blocked by robots.txt, meta robots or X-Robots-Tag directives such as ‘noindex’ or ‘nofollow’, as well as canonicals and rel=“next” and rel=“prev”.

Generate XML Sitemaps

Quickly create XML Sitemaps and Image XML Sitemaps, with advanced configuration over URLs to include, last modified, priority and change frequency.

Integrate with GA, GSC & PSI

Connect to the Google Analytics, Search Console and PageSpeed Insights APIs and fetch user and performance data for all URLs in a crawl for greater insight.

Crawl JavaScript Websites

Render web pages using the integrated Chromium WRS to crawl dynamic, JavaScript rich websites and frameworks, such as Angular, React and Vue.js.

Visualise Site Architecture

Evaluate internal linking and URL structure using interactive crawl and directory force-directed diagrams and tree graph site visualisations.

Schedule Audits

Schedule crawls to run at chosen intervals and auto export crawl data to any location, including Google Sheets. Or automate entirely via command line.

Compare Crawls & Staging

Track progress of SEO issues and opportunities and see what's changed between crawls. Compare staging against production environments using advanced URL Mapping.

Features

• Find Broken Links, Errors & Redirects
• Analyse Page Titles & Meta Data
• Review Meta Robots & Directives
• Audit hreflang Attributes
• Discover Exact Duplicate Pages
• Generate XML Sitemaps
• Site Visualisations
• Crawl Limit
• Scheduling
• Crawl Configuration
• Save & Open Crawls
• JavaScript Rendering
• Crawl Comparison
• Near Duplicate Content
• Custom robots.txt
• Mobile Usability
• AMP Crawling & Validation
• Structured Data & Validation
• Spelling & Grammar Checks
• Custom Source Code Search
• Custom Extraction
• Custom JavaScript
• Crawl with OpenAI & Gemini
• Google Analytics Integration
• Search Console Integration
• PageSpeed Insights Integration
• Accessibility Auditing
• Link Metrics Integration
• Forms Based Authentication
• Segmentation
• Looker Studio Crawl Report
• Free Technical Support

Price per licence

Licences last 1 year. After that you will be required to renew your licence.

Free Version

• Find Broken Links, Errors & Redirects
• Analyse Page Titles & Meta Data
• Review Meta Robots & Directives
• Audit hreflang Attributes
• Discover Exact Duplicate Pages
• Generate XML Sitemaps
• Site Visualisations
• Crawl Limit - 500 URLs
• Scheduling
• Crawl Configuration
• Save & Open Crawls
• JavaScript Rendering
• Crawl Comparison
• Near Duplicate Content
• Custom robots.txt
• Mobile Usability
• AMP Crawling & Validation
• Structured Data & Validation
• Spelling & Grammar Checks
• Custom Source Code Search
• Custom Extraction
• Custom JavaScript
• Crawl with OpenAI & Gemini
• Google Analytics Integration
• Search Console Integration
• PageSpeed Insights Integration
• Accessibility Auditing
• Link Metrics Integration
• Forms Based Authentication
• Segmentation
• Looker Studio Crawl Report
• Free Technical Support

Paid Version

• Find Broken Links, Errors & Redirects
• Analyse Page Titles & Meta Data
• Review Meta Robots & Directives
• Audit hreflang Attributes
• Discover Exact Duplicate Pages
• Generate XML Sitemaps
• Site Visualisations
• Crawl Limit - Unlimited*
• Scheduling
• Crawl Configuration
• Save & Open Crawls
• JavaScript Rendering
• Crawl Comparison
• Near Duplicate Content
• Custom robots.txt
• Mobile Usability
• AMP Crawling & Validation
• Structured Data & Validation
• Spelling & Grammar Checks
• Custom Source Code Search
• Custom Extraction
• Custom JavaScript
• Crawl with OpenAI & Gemini
• Google Analytics Integration
• Search Console Integration
• PageSpeed Insights Integration
• Accessibility Auditing
• Link Metrics Integration
• Forms Based Authentication
• Segmentation
• Looker Studio Crawl Report
• Free Technical Support

The SEO Spider Tool Crawls & Reports On...

The Screaming Frog SEO Spider is an SEO auditing tool, built by real SEOs with thousands of users worldwide. A quick summary of some of the data collected in a crawl include -

• Errors – Client errors such as broken links & server errors (No responses, 4XX client & 5XX server errors).
• Redirects – Permanent, temporary, JavaScript redirects, meta & HTTP refreshes, redirect chains and loops.
• Blocked URLs – View & audit URLs disallowed by the robots.txt protocol.
• Blocked Resources – View & audit blocked resources in rendering mode.
• External Links – View all external links, their status codes and source pages.
• Site Structure – Analyse site architecture, indexability and crawl depth by directory.
• Internal Linking – Analyse internal links, link counts, crawl depth and calculate internal Link Score.
• Anchor Text – View aggregated and granular anchor text of all links. Identify non-descriptive anchor text to improve for users and search engines.
• Security – Discover insecure pages, mixed content, insecure forms, missing security headers and more.
• URL Issues – Non ASCII characters, underscores, uppercase characters, parameters, long URLs, repetitive paths or broken bookmarks.
• Page Titles – Identify missing, duplicate, long, short or multiple titles.
• Meta Description – Identify missing, duplicate, long, short or multiple descriptions.
• Headings – View h1 and h2 headings, including if any are missing, duplicate, long, short, multiple or non-sequential.
• Content – View word count, analyse readability and identify low relevance content that deviates from the average content focus of the site.
• Directives – View directives in meta robots or the X-Robots-Tag header, including noindex, nofollow, none, nosnippet and more.
• Canonicals – Analyse canonical link elements & canonical HTTP headers.
• Pagination – View rel=”next” and rel=”prev” attributes, as well as common set up issues with paginated pages.
• hreflang Attributes – Audit missing return tags, inconsistent & incorrect languages codes, non-200 response hreflang and more.
• Duplicate Content – Discover exact, near duplicate and semantically similar pages using algorithmic checks and vector embeddings.
• Rendering – Crawl JavaScript frameworks like AngularJS and React, by crawling the rendered HTML after JavaScript has executed.
• JavaScript – Identify content, links, page titles, descriptions, headings and other key elements that rely on JavaScript.
• Images – Find all images and discover those that are too large, missing alt text, background images, missing size attributes and more.
• Validation – Find issues that can impact search bots from being able to parse and understand a page reliably.
• User-Agent – Crawl as a search bot such as Googlebot or Bingbot, AI crawlers, or your own custom UA.
• Custom HTTP Headers – Supply any header value in a request, from Accept-Language to cookie.
• Custom Source Code Search – Search for anything in the source code of a website – such as analytics tracking tags, keywords or code.
• Custom Extraction – Scrape any data from the HTML of a URL using XPath, CSS Path selectors or regex.
• Custom JavaScript – Run custom JavaScript snippets while crawling, to extract data, trigger mouseover events, scroll a page or nearly anything else you’re able to do in the Chrome console.
• Google Analytics Integration – Connect to the Google Analytics API and pull in user and conversion data directly during a crawl.
• Google Search Console Integration – Connect to the Google Search Analytics and URL Inspection APIs and collect performance and index status data in bulk.
• PageSpeed Insights Integration – Connect to the PSI API for Lighthouse metrics, speed opportunities, diagnostics and Chrome User Experience Report (CrUX) data at scale.
• Mobile Usability – Use Lighthouse to check for common mobile usability issues.
• External Link Metrics – Pull external link metrics from Majestic, Ahrefs and Moz APIs into a crawl to perform content audits or profile links.
• XML Sitemap Generation – Create an XML sitemap and an image sitemap using the SEO spider.
• Custom robots.txt – Download, edit and test a site’s robots.txt using the new custom robots.txt.
• Rendered Screen Shots – Fetch, view and analyse the rendered pages crawled.
• Store & View HTML & Rendered HTML – Essential for analysing the DOM.
• AMP Crawling & Validation – Crawl AMP URLs and validate them, using the official integrated AMP Validator.
• XML Sitemap Analysis – Crawl an XML Sitemap independently or part of a crawl, to find missing, non-indexable and orphan pages.
• Visualisations – Analyse the internal linking and URL structure of the website, using the crawl and directory tree force-directed diagrams and tree graphs.
• Structured Data & Validation – Extract & validate structured data against Schema.org specifications and Google rich result features.
• Spelling & Grammar – Spell & grammar check your website in over 25 different languages.
• Website Accessibility – Use the open-source AXE accessibility rule set for automated accessibility validation to test against Web Content Accessibility Guidelines (WCAG).
• AI Integration – Set up custom AI prompts with OpenAI, Gemini, Ollama and Anthropic while crawling for insight.
• Crawl Comparison – Compare crawl data to identify changes and track technical SEO progress. Compare site structure, detect changes in key elements and use URL mapping to compare staging Vs production.
• Data Studio Crawl Reports – Set up automated Data Studio crawl reports to monitor site health and trends.

About The Tool

The Screaming Frog SEO Spider is an SEO audit tool trusted by thousands of professional SEOs, agencies and brands worldwide to perform technical SEO audits.

It can help identify over 300 SEO issues, warnings and opportunities to improve website health and user experience.

An in-app explanation of each issue and potential actions is provided. Each issue has a ‘type’ and an estimated ‘priority’ based upon the potential impact.

The SEO Spider allows you to export key onsite SEO elements (URL, page title, meta description, headings etc) to a spread sheet, so it can easily be used as a base for SEO recommendations. Check our out demo video above.

Crawl 500 URLs For Free

The ‘lite’ version of the tool is free to download and use – without any sign up or email capture.

The free version is restricted to crawling up to 500 URLs in a single crawl. The crawl configuration, saving of crawls, and advanced features such as JavaScript rendering, custom extraction, and API integrations are also restricted.

For just £199 per year you can purchase a licence, which removes the 500 URL crawl limit, allows you to save crawls, and opens up the spider’s configuration options and advanced features.