Screaming Frog SEO Spider vs SiteAnalyzer (2026): which should you pick?

Pick Screaming Frog SEO Spider if

• Fits if you're a technical SEO who audits large sites from your own computer
• Works for sites under 500 URLs, which the free version crawls with no time limit

Look elsewhere if

• Skip it if you want keyword research, rank tracking or backlinks, as it only crawls
• Not for you if you'd rather not learn technical SEO terms, XPath or regex
• Tight if your computer is short on memory or storage, since crawl size depends on it, and there's no web or phone version
• Pricey if a team needs it: licences are $279 per user a year, so two people need two
• Watch out: the free version can't save crawls, render JavaScript, schedule audits or connect to Google data

Pick SiteAnalyzer if

• Fits if you're an SEO freelancer on Windows who'd rather pay once than subscribe
• Works for studying how internal links and PageRank flow through a site

Look elsewhere if

• Skip it if you work on a Mac or Linux, as it's Windows only and Wine or CrossOver are the vendor's workarounds
• Not for you if your site loads links with JavaScript, which it doesn't render yet
• Tight if you stay free, at 100 pages a crawl, 1 project and 1 thread
• Watch out: the home page table shows 500 pages and 5 threads for free, while the pricing page says 100 and 1
• Pricey if you work across several computers, as each $108 license covers one

Screaming Frog SEO Spider

• Licences are per user and last one year; two people need two licences.
• It is a desktop app, so crawl size depends on the computer's memory and storage.
• The free version cannot save crawls, render JavaScript, schedule audits or connect to Google data.

SiteAnalyzer

• It runs only on Windows; the vendor suggests Wine on Linux and CrossOver on a Mac as workarounds.
• It does not render JavaScript, so links loaded by scripts are missed; the FAQ says rendering is planned.
• The pricing page caps the free version at 100 pages and 1 thread, while the home page table shows 500 pages and 5 threads.
• Each Pro license covers one computer; refunds are offered within 30 days of purchase.

Screaming Frog SEO Spider

Technical SEO audit

Find broken links, server errors, redirect chains, missing or duplicate titles and descriptions, and directives such as noindex and canonicals.

JavaScript rendering

With a licence, render pages in a built-in Chromium to crawl sites built with frameworks such as React, Angular and Vue.

Custom extraction and search

Pull any data from page HTML with XPath, CSS Path or regex, and search source code across a whole crawl (licence only).

Google and AI integrations

Pull Google Analytics, Search Console and PageSpeed Insights data into a crawl, or run pages through OpenAI and Gemini (licence only).

Scheduling and crawl comparison

Schedule crawls with exports to Google Sheets or run them from the command line, and compare crawls or staging against production.

Site visualisations and sitemaps

See site structure as force-directed and tree diagrams, and generate XML and image sitemaps from a crawl.

SiteAnalyzer

Technical SEO audit

More than 60 preset filters pick out problems such as duplicate titles, 404 errors, redirect chains and oversized images, with a 0 to 100 score.

Link graph and internal PageRank

Draws the site's internal links as an interactive graph and calculates internal PageRank for each page, with anchor text statistics.

Search Console and Yandex data

Pulls indexing, traffic, bounce rate and ranking queries per page from Google Search Console, Yandex Webmaster and Yandex Metrica.

Data scraping

Extracts content from a list of URLs with XPath, CSS selectors, XQuery or regular expressions, and exports it to Excel.

Duplicate content checks

Batch-checks pages for text that is not unique within the domain and lists duplicate pages.

Exports and sitemaps

Exports any data or the audit report to Excel or PDF, the site structure to mind map tools, and generates XML sitemaps.

Screaming Frog SEO Spider

• Free$0

  Up to 500 URLs per crawl, broken links, redirects, metadata, duplicates, XML sitemaps and site visualisations.

• Paid licence$279

  per user / year, for 1 to 4 licences

  No crawl limit beyond memory and storage, saved crawls, scheduling, JavaScript rendering, crawl comparison, integrations and support. £199 in pounds.

SiteAnalyzer

• Free$0

  100 pages per crawl, 1 saved project and 1 thread, for a small site on one computer.

• Pro$108

  one-time, per computer

  Unlimited pages and projects, up to 99 threads and free updates. Shown as reduced from a crossed-out $120; the price per computer falls for teams.

Screaming Frog SEO Spider

• Other savings

  Volume pricing from 5 licences

  Buying 5 to 9 licences at once costs $265 each a year, 10 to 19 cost $249 each, and 20 or more cost $235 each, against $279 for 1 to 4.

SiteAnalyzer

• Other savings

  Volume discount for teams

  The pricing page lowers the Pro price per computer as more are bought: $99 each for 3 to 5, down to $72 each for 21 or more, a 33% saving.