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Compare · Siteimprove is an enterprise content, accessibility and SEO suite

SiteOS vs Siteimprove.
Free, without a quote.

Siteimprove is an enterprise suite for accessibility, SEO and AI answer visibility, content quality and analytics, sold by quote. SiteOS covers SEO, AI visibility, automated accessibility checks and analytics too, free to start, and adds a consent banner, forms, site search, browser checks, error tracking and checks that tracking fires, in one Project for your team and your AI agent. This page compares SiteOS and Siteimprove on SEO and AI visibility, accessibility, analytics, consent, forms, checks and enterprise sign-in, including where Siteimprove goes further.

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At a glance

Where SiteOS goes further8

  • Cookie consent bannerRegional rules, Google Consent Mode and scheduled scans
  • Forms with an inboxShared inbox, contacts, spam controls and Mailchimp
  • Site searchCrawled indices, relevance controls and search analytics
  • Browser checks on key journeysPage checks without code, and Playwright journeys on a schedule and in pull requests
  • Error trackingBrowser and server errors, grouped, with source maps
  • Tracking checks for GA4, GTM and consentFailed requests, duplicates, missing events and tag changes, plus personal data, consent and pull request checks
  • MCP for coding agentsYour agent reads the same evidence and works through fixes
  • Free planMonthly credits for research and checks; accounts by invitation during early access

Where Siteimprove goes further3

  • Audits of large websitesSiteimprove's crawler follows every link on a site, up to the page limit in your contract.
  • PDF and manual accessibility testingSiteimprove checks PDFs against WCAG 2 and PDF/UA, and its experts offer manual accessibility testing to U.S. customers.
  • SAML single sign-onSiteimprove supports single sign-on with SAML 2.0.

Both cover6

  • Works with websites on any host
  • Technical SEO audits
  • AI answer visibility
  • Automated accessibility checks
  • Web analytics
  • Several websites in one workspace

Side by side

SiteOS vs Siteimprove

SiteOS and Siteimprove: website capabilities and the compared plans. Reviewed 12 Oct 2026.
CapabilitySiteOSSiteimprove
Works with websites on any hostAny framework, CMS or host, with nothing to migrateYesYes
Technical SEO auditsSite crawls, Lighthouse checks and Search Console reportsYesYes
Audits of large websitesA SiteOS audit checks up to 500 pagesPartlyYes
AI answer visibilityChatGPT, Claude, Gemini and Perplexity, against up to five competitorsYesYes
Automated accessibility checksAutomatic WCAG 2.2 AA checks on every audited pageYesYes
PDF and manual accessibility testingNot offered: SiteOS checks audited HTML pages automaticallyNoYes
Web analyticsCookieless, with goals, funnels, several domains and GA4YesYes
Cookie consent bannerRegional rules, Google Consent Mode and scheduled scansYesNo
Forms with an inboxShared inbox, contacts, spam controls and MailchimpYesNo
Site searchCrawled indices, relevance controls and search analyticsYesNo
Browser checks on key journeysPage checks without code, and Playwright journeys on a schedule and in pull requestsYesPartly
Error trackingBrowser and server errors, grouped, with source mapsYesNo
Tracking checks for GA4, GTM and consentFailed requests, duplicates, missing events and tag changes, plus personal data, consent and pull request checksYesPartly
Several websites in one workspaceA Project per website, with separate environmentsYesYes
MCP for coding agentsYour agent reads the same evidence and works through fixesYesPartly
SAML single sign-onNot offered: SiteOS signs in with an email code or GoogleNoYes
Free planMonthly credits for research and checks; accounts by invitation during early accessYesNo
Price of the compared planFreeBy quote

YesPartly, with the condition in the notesNot offered

SiteOS is free, with monthly credits for research and checks. Siteimprove prices packages after a demo. A public Texas DIR contract lists its Complete package for 1,000 pages at $7,100 and Analytics for 3 million yearly pageviews at $6,100; the sheet does not state the term.

Audits of large websites: Siteimprove's crawler follows every link on a site, up to the page limit in your contract.

AI answer visibility: Siteimprove names ChatGPT, Perplexity, Google AI Overviews and Gemini; SiteOS checks ChatGPT, Claude, Gemini and Perplexity.

Automated accessibility checks: Every SiteOS Site Audit checks each audited page against WCAG 2.2 A/AA and best-practice rules with axe-core and lists violations by element; Siteimprove also audits PDFs and apps and offers manual testing.

PDF and manual accessibility testing: Siteimprove checks PDFs against WCAG 2 and PDF/UA, and its experts offer manual accessibility testing to U.S. customers.

Web analytics: Siteimprove Analytics is a separate package priced by yearly pageviews.

Cookie consent banner: Siteimprove scans for cookies; its former banner is no longer offered.

Site search: Siteimprove reports on searches in your existing search box.

Browser checks on key journeys: Siteimprove recrawls sites at least seven days apart and scores page speed daily; scripted journeys are not described.

Tracking checks for GA4, GTM and consent: Siteimprove policies flag pages missing an analytics script; they do not check that events fire.

MCP for coding agents: Siteimprove's MCP server provides accessibility scans and fix suggestions.

SAML single sign-on: Siteimprove supports single sign-on with SAML 2.0.

Free plan: Siteimprove offers free single-page checks, but no free plan.

Sources · reviewed 12 Oct 2026

Together

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together.

Organizations that need Siteimprove's accessibility governance can still use SiteOS where it is stronger: a consent banner, forms, site search, browser checks on key journeys and tracking checks, with free access for smaller teams and websites.

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