Siteimprove alternatives for accessibility monitoring

The strongest Siteimprove alternatives for accessibility are Askem, Silktide, DubBot and Monsido. Askem fits European organisations that need continuous WCAG monitoring, feedback from real visitors and EU data residency at published pricing. Siteimprove is still the better buy if you want accessibility, SEO and analytics governed together under one enterprise contract.

Last updated August 2026 · Reviewed by the Askem accessibility team

The short version

Which one to shortlist, in a line each. Everything below is the detail behind these.

Askem if you need EU hosting, a ranked list your team will actually act on, and a price you can put in a budget before you speak to anyone.
Silktide if the real problem is that nobody in your organisation understands accessibility yet.
DubBot if you are a North American university or government team and you want to write your own checks.
Monsido if Acquia or Drupal is already your platform.
Stay with Siteimprove if you genuinely need accessibility, SEO and analytics on one contract, and you have the budget and the people for it.

What this comparison covers

Accessibility and content quality only. Some tools on this page also sell SEO, site speed or content management. Those are useful, but they are a separate purchase and they will not tell you whether your website is accessible. That is the one question this page answers.

Not compared: SEO tools, including keyword research, rank tracking and backlinks
Not compared: Site speed and performance monitoring
Not compared: Content management, experience platforms and personalisation

Why teams look for a Siteimprove alternative

You pay for the whole platform, not the part you use

You get a quote rather than a price, and it covers everything. Reviewers on G2 and Capterra keep coming back to the same complaint: they pay for a great deal more than anyone opens in a normal week.

It tells you everything except what to do first

The reporting is thorough. What it does not do is hand you a ranked list of what to fix first. If you have a thousand flagged issues and one afternoon, that gap is the whole problem.

Finnish and Swedish content gets flagged as wrong

This comes up often in reviews, and it hits Nordic teams hardest. Correctly spelled Finnish and Swedish words, and specialist terms, are marked as errors. Somebody then has to clear them by hand, every time.

You need a specialist to drive it

The more a tool covers, the more there is to learn. When the people responsible are communications, IT and legal rather than full-time accessibility specialists, a tool that needs training first tends to sit unopened.

What to look for in an accessibility monitoring tool

Five things decide whether a tool actually keeps a large site accessible, rather than just telling you it isn't.

Continuous site-wide WCAG scanning: A one-off audit is out of date the next time somebody publishes a page. You have to stay accessible, not pass once.
Broken link detection: Dead links are both an accessibility problem and the thing real visitors complain about most.
Readability and content quality: WCAG is also about whether people can understand your content, not only whether a screen reader can read it aloud.
Page-level feedback from real users: Automated scanning catches roughly a third of accessibility problems. People find the rest.
EU data residency: In European public-sector buying this is often a straight yes or no requirement, not a preference.

Siteimprove alternatives compared

Compared on accessibility and content quality only. Siteimprove's SEO and analytics modules are real and useful. They are simply a different purchase, and counting them here would tell you nothing about whether your site is accessible.

Accessibility monitoring capabilities compared across Askem, Silktide, DubBot, Monsido, Siteimprove
Capability	Askem	Silktide	DubBot	Monsido	Siteimprove
Continuous site-wide WCAG scanning	✓ Yes	✓ Yes	✓ Yes	✓ Yes	✓ Yes
Broken link detection	✓ Yes	✓ Yes	✓ Yes	✓ Yes	✓ Yes
Readability and content quality	✓ Yes	✓ Yes	✓ Yes	✓ Yes	✓ Yes
Page-level feedback from real users	✓ Yes	— No	— No	— No	— No
EU data residency	✓ Yes	Not published Not published	Not published Not published	Not published Not published	Partial Partial
Cost per montha 10,000-page site with more than 50,000 visits a month	€199	€1,440	Not published	€360–1,080estimated	€2,530–5,050estimated

Compiled from each vendor's public product and pricing pages, August 2026. "Not published" means the vendor does not say publicly, not that the tool cannot do it. If something here is out of date, tell us and we will correct it.

The alternatives in detail

1. Askem

Continuous accessibility and content-quality monitoring for large websites, with feedback from real visitors on individual pages.

Built for the situation where communications owns the website, IT owns the risk and legal owns the evidence. You get a ranked list of what to fix rather than a report, feedback from real visitors alongside the scan, and the price is on the website.

Best for: Public sector, healthcare, education, finance and associations with large, content-heavy sites, where communications, IT and legal all have to sign off.
Not for: Developer teams who want accessibility checks wired into their own build pipeline through an API or CI/CD, and sites under roughly 50,000 visits a month, where manual checks are still enough.
Pricing: Published on our own site: €199 a month for Quality Assurance.
Also sells, outside this comparison: Cookieless web analytics

2. Silktide

An accessibility and website-quality platform, best known for its disability simulations, which let your team see a page the way a screen-reader or colour-blind visitor experiences it.

The disability simulations are the best thing in this group for building understanding in a team that has never used a screen reader. If your problem is that nobody internally sees why this matters, that is worth a lot.

Best for: Teams who want to build accessibility understanding among people who are not specialists, and public-sector organisations that value the simulations and training.
Not for: Teams who want the fix to happen where the problem is found, since issues still have to be corrected back in the CMS, and buyers who need EU-only data residency as a condition of purchase.
Pricing: Not shown on their own site. Listed for UK public sector on the G-Cloud framework, which works out at about €490 a month for 1,000 pages.
Also sells, outside this comparison: SEO · Performance monitoring · Accessibility training

3. DubBot

A focused accessibility and content-checking scanner built for web teams, with rules you can write yourself.

Focused rather than broad, and well liked for it. You can write your own rules with XPath and regular expressions, which goes further than most tools here for checks specific to your organisation.

Best for: Higher education and government web teams in North America who want a focused, easy-to-use checking tool rather than a broad platform, and who want to write their own rules.
Not for: Organisations that want the tool built deeply into their CMS, and European buyers who need their data kept in the EU.
Pricing: Not published, and there is no free plan. You have to ask.
Also sells, outside this comparison: Custom XPath and regex rules · Spelling and brand-word checks

4. Monsido

An accessibility and website-quality tool, now part of Acquia, aimed at public sector and higher education.

Worth a look if Acquia or Drupal is already your platform, since it arrives as part of that relationship rather than as a separate purchase.

Best for: Organisations that have already chosen Acquia or Drupal as their platform.
Not for: Teams who want a standalone tool rather than one tied to a wider Acquia relationship.
Pricing: Not published. Quoted, usually as part of an Acquia deal.
Also sells, outside this comparison: SEO · Data privacy scanning · Part of the Acquia platform

What these actually cost

Every figure below is euros per month for a 10,000-page site with more than 50,000 visits a month, so you can compare like with like. Most of these vendors quote privately, in another currency, per year. That is the most common complaint people have about buying an accessibility tool.

Published pricing and scaling model for Askem, Silktide, DubBot, Monsido, Siteimprove
Tool	Price published?	Per month for this site	Cheapest starting price	What it scales on
Askem	Yes, on their site	€199published	€199 / month	Per domain, with each extra domain at a small added cost. Not tiered by pages or by traffic, so the figure does not move as the site grows.
Silktide	Public-sector framework only	€1,440published	€490 / month at 1,000 pages	By pages scanned. Published UK public-sector rates convert to about €880 a month at 5,000 pages, €1,440 at 10,000, €2,915 at 25,000 and €4,300 at 50,000.
DubBot	No, quote only	Not published	Not published	Quoted per institution, with discounts through purchasing consortia such as HESS. There are no published rates, no free plan and no reliable public benchmark, so the only way to get a number is to ask.
Monsido	No, quote only	€360–1,080*estimated	Not published	Quoted, usually inside a wider Acquia relationship. Third-party reporting puts it around €360 to €1,080 a month.
Siteimprove	No, quote only	€2,530–5,050*estimated	Not published	Quoted on pages monitored, modules licensed and contract length. Buyers report roughly €870 to €2,170 a month at 1,000 to 5,000 pages.Watch for: Priced per module, so accessibility, SEO, analytics and content governance each show up as a separate line on the quote.

Converted at €1 = £0.855 = $1.154, the rate on 10 August 2026. Annual figures divided by twelve. Checked August 2026. * Third-party estimate reported by buyers, not a figure the vendor publishes. Treat it as a range, not a quote.

Moving from Siteimprove to Askem

There is nothing to export. Askem crawls your site from scratch, so switching means pointing it at your domains and letting the first scan run. Most teams run both tools for one billing cycle and compare what each one finds, which is also the fastest way to settle any argument about which scanner is right. Old Siteimprove reports stay with Siteimprove, so download anything you need as evidence before the contract ends.

Sources

Vendor product and pricing pages, checked August 2026.

Why teams move to Askem

A price you can put in a budget request. €199 a month, published, and it does not go up with your page count. Most of the others will not give you a number until you have sat through a sales call.
An answer for IT. Hosted in the EU, never transferred outside it, with a data processing agreement and sub-processor list ready for procurement.
Something your team will actually open. Findings arrive as a prioritised list of what to fix first, readable by someone who is not an accessibility specialist.
Evidence for legal. Continuous monitoring creates a dated record of what was found and when it was fixed, which is what an audit asks for.

And where Askem is not the right answer: there is no SEO tooling, no CI/CD integration for development pipelines, and it is priced for sites big enough to need watching all the time. Under about 50,000 visits a month, checking by hand now and then will serve you fine and cost nothing.

See what Askem finds on your site See pricing

Siteimprove alternatives: common questions

What is the best Siteimprove alternative?

It depends what you used Siteimprove for. For accessibility and content-quality monitoring, Askem, Silktide, DubBot and Monsido all cover the core job. Askem suits European organisations needing EU data residency and published pricing; Silktide suits teams wanting disability simulations; DubBot suits North American higher education.

Is Askem a full replacement for Siteimprove?

For accessibility and content-quality monitoring, yes: continuous WCAG scanning, broken links, readability and page-level feedback from real visitors. If you also use Siteimprove as your SEO or analytics platform, you would replace those separately. That is a different job and usually a different budget line.

How much does Siteimprove cost?

Siteimprove does not publish prices. Buyers reporting to the Vendr marketplace put it at roughly €870 to €2,170 a month for 1,000 to 5,000 pages, and €2,530 to €5,050 a month for larger sites. That is a third-party estimate, not a quote.

Is there a cheaper alternative to Siteimprove?

Askem publishes €199 a month and does not charge by page count. Silktide's published UK public-sector rate works out at about €880 a month for 5,000 pages. DubBot and Monsido will not tell you until you ask. A published price at least lets you build the case first.

Can an accessibility-only tool replace a governance suite?

If accessibility law is your obligation, yes. EN 301 549 and the European Accessibility Act ask about accessibility, not about keyword rankings. Plenty of organisations find they were paying for a whole platform to satisfy a rule that only ever asked about one part of it.

Where is my data stored?

With Askem, inside the EU, and it is never transferred outside. For European public-sector procurement this is often a hard requirement rather than a preference. Other vendors on this page do not all publish their data residency, so ask directly and get the answer in writing.

How long does switching take?

Askem needs no installation project. You add your domains and the first crawl runs. Most teams overlap the two tools for a billing cycle so they can compare findings directly, then stop renewing the old contract once they trust the new one.

Does automated scanning make my site compliant?

No tool can promise that, and be wary of any that does. Automated scanning reliably catches roughly a third of accessibility problems and gives you a dated, repeatable record that you are monitoring. People find the rest, which is why feedback from real visitors on real pages matters alongside any scanner.

Compare other tools

Silktide alternatives DubBot alternatives accessiBe alternatives Silktide vs Siteimprove All accessibility tools compared

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