Screaming Frog SEO Spider vs squirrelscan (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 squirrelscan if

• Fits if you fix sites with Claude Code, Cursor or another coding agent
• Works for CI pipelines that should fail a build when the audit score drops

Look elsewhere if

• Skip it if you don't use a terminal, as it's a command-line tool first
• Watch out: the terms call it a beta product, and the CLI is still at version 0.0.x
• Tight if you lean on cloud audits, at 50 credits plus 2 a page, with credits that reset each month
• Tight if you stay free, as cloud audits stop at 500 pages and top-ups are for paid plans only
• Pricey if you want white-label reports or pooled credits, which need Team at 2 seats of $29

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.

squirrelscan

• The terms call it a beta product, and the CLI is still at version 0.0.x.
• Cloud audits cost 50 credits plus 2 per page, and 1 more per external link checked; monthly credits reset and do not roll over.
• Free cloud audits stop at 500 pages with one weekly scheduled site, and only paid plans can buy top-ups ($1 per 100 credits, from $10).
• Team is sold per seat with a 2-seat minimum, and pooled credits, roles and white-label reports come only with it.

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.

squirrelscan

300+ audit rules in 22 categories

Checks core SEO, crawlability, links, schema, hreflang, Core Web Vitals, security headers, accessibility, E-E-A-T signals and AI crawler readiness such as llms.txt.

Fixes written for coding agents

Every finding comes with its fix in output an agent can apply. Skills for Claude Code, Cursor, Codex and others run an audit, fix and re-audit loop.

CLI, MCP server and CI gate

A single binary for macOS, Windows and Linux, a local MCP server that exposes the audit as agent tools, and exit codes that can fail a build on score or severity.

Incremental crawling

Re-crawls use ETag, Last-Modified and content hashing to skip unchanged pages, and an interrupted crawl resumes from a checkpoint.

Reports in seven formats

A health score and letter grade, with output as a self-contained HTML file, Markdown or console text for people, and LLM, JSON, XML or text for agents.

Cloud audits

Signed in, audits add headless-browser rendering for JavaScript sites, AI page analysis, technology detection, dead-link checks, scheduled runs and published reports.

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.

squirrelscan

• Free$0

  Unlimited local audits, 500 cloud credits a month, 500 pages per cloud audit and a weekly scheduled audit of one site. No card needed.

• Pro$19

  per month, billed monthly

  3,000 credits a month (an audit costs 50 plus 2 per page), 2,000 pages per audit, daily audits of all sites and score history. $190 a year.

• Team$29

  per seat / month, billed monthly

  Minimum 2 seats. 3,000 pooled credits per seat, 10,000 pages per audit, roles, shared projects and white-label reports. $290 per seat a year.

• EnterpriseCustom

  Custom contracts and invoiced billing for larger teams, with single sign-on on request.

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.

squirrelscan

• Annual discount

  Two months free with annual billing

  Annual billing is 12 months for the price of 10: Pro is $190 a year and Team $290 per seat a year, with credits still arriving monthly.