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Website Audit & Monitoring

Tools that check a live website for problems and keep checking it over time: security headers and exposed endpoints, crawlability and metadata, WCAG issues, page speed and Core Web Vitals, with scheduled re-checks and alerts when something changes. Every tool below is measured against the same criteria, in the same order. The subject is the health of a site that already exists and not what people search for: keyword research, rank tracking and backlink data sit under SEO Tools, and the tools that build the site sit under Website Builders.

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16tools

  • Sitelemetry

    MCP-ready

    Price Free plan; paid from $49 / month

    Not rated yet

    Audits a live site for security, technical SEO, AI visibility, accessibility and performance, with a remote MCP server for coding assistants.

    Strengths

    • Security, technical SEO, AI visibility, accessibility, performance and integrations covered in one audit
    • Remote MCP server available on every account, the free one included
    • Free plan with 10 security scans per month and no credit card
    • Each audit can produce one fix prompt for a coding assistant, with acceptance criteria and retest steps

    Limitations

    • The free plan covers security only; the other five areas start at $49 a month
    • One seat on every plan below Enterprise
    • No alert channels and no REST API are documented
    • External engines such as Nmap, Nuclei, ZAP and WPScan run only when hosted workers are available
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  • Silktide

    AI features

    Not rated yet

    Tests websites and PDFs for accessibility, content quality and user experience issues, with AI to prioritise the fixes.

    Strengths

    • Tests against all 86 WCAG 2.2 success criteria, and PDFs against PDF/UA-1
    • Uptime checked every five minutes with email and SMS alerts
    • Unlimited users and an interface in 15 languages
    • Tasks go to Jira or Linear with links back to the findings

    Limitations

    • Pricing is not published and no free trial is listed
    • Speed tracking covers only up to ten key pages per website
    • Security scanning is not part of the stated scope
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  • Google Lighthouse

    Price Free

    Not rated yet

    Open-source tool from Google that scores a web page on performance, accessibility, best practices and SEO.

    Strengths

    • Built into Chrome DevTools, so there is nothing to install
    • Scores four areas in one run: performance, accessibility, best practices and SEO
    • Command line and Node module for build pipelines
    • Open source under the Apache 2.0 licence

    Limitations

    • Audits one URL per run rather than crawling a site
    • Scheduled runs and alerts need Lighthouse CI or a third-party service
    • Google's docs note that scores fluctuate as underlying conditions change
    • The command-line tool needs Node 22 or later
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  • Pingdom

    Price From $18 / month

    Not rated yet

    SolarWinds' website monitoring service, combining synthetic uptime, page speed and transaction checks with real user monitoring.

    Strengths

    • Synthetic uptime, page speed and transaction checks plus real user monitoring in one service
    • Uptime checks from more than 100 servers, with a second check before an alert
    • Transaction checks for logins, sign-ups, search and checkout flows
    • Public status pages included in all plans

    Limitations

    • Synthetic and real user monitoring are priced and bought separately
    • Certificate expiry marks the uptime check down, so SolarWinds recommends a separate check for it
    • The pricing page lists no free plan, only a trial whose length it does not give
    • The official site describes no accessibility or technical SEO checks
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  • ObservePoint

    Not rated yet

    Scans websites for unapproved cookies and tags, privacy risks, broken analytics and accessibility issues.

    Strengths

    • Tests whether cookies and tags respect consent, including the GPC signal, from different regions
    • Accessibility scored against WCAG 2.0, 2.1 and 2.2 at every level
    • Alerts on any audit metric, with past runs showing whether an alert would have fired
    • Plugs into CI/CD through a GitHub App and Actions

    Limitations

    • No fixed prices are published
    • Slack, Teams and Jira notifications arrive by email rather than through native connectors
    • Security checks cover third-party scripts in the browser; the vendor positions it as a complement to infrastructure security tools, not a replacement
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  • DubBot

    Not rated yet

    Crawls websites and PDFs for WCAG accessibility, broken links, spelling, SEO and your own content policy issues.

    Strengths

    • Checks content against your own policies, such as outdated contact details or unapproved forms
    • Scans login-protected areas such as intranets, portals and staging sites
    • PDF accessibility checks alongside web pages
    • Image inventory with file size, format, alt text and usage

    Limitations

    • Prices are not published
    • No security or page speed checks are listed
    • The default automatic crawl runs only every seven days
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  • UptimeRobot

    MCP-ready

    Price Free plan; paid from $12 / month

    Not rated yet

    Checks websites, APIs, ports, cron jobs, SSL certificates and domains from outside and alerts you when something goes down or changes.

    Strengths

    • Free plan with 50 monitors at 5-minute checks, which the vendor states is for personal and commercial projects
    • Checks every 15 seconds on Scale, with a re-check from a second data center before alerting
    • Hosted MCP server for listing, creating and updating monitors from AI agents
    • Status pages on your own domain, translatable into 11 languages and white-label from the Team plan

    Limitations

    • Webhook, Zapier and PagerDuty integrations start on the Team plan
    • SMS and voice call alerts on Free need separately bought credits
    • Login seats for a team start on the Team plan, with 3 included
    • The official site describes no accessibility or technical SEO checks
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  • Checkbot

    Price Free; Professional from $10 / month

    Not rated yet

    Finds SEO, speed and security problems by crawling a site from inside Google Chrome.

    Strengths

    • Free plan with unlimited crawls of up to 100 URLs each
    • Crawls staging sites and sites on private networks from the local machine
    • Professional adds localhost crawling, HTTP Auth, URL skipping, PDF reports and CSV export
    • Runs wherever desktop Chrome does: Windows, Mac, ChromeOS and Linux

    Limitations

    • Available for Google Chrome only
    • Does not currently execute JavaScript while crawling
    • The official site names no accessibility checks, scheduled re-checks or Core Web Vitals
    • A Professional subscription covers a single user
    • The free plan is ad-supported
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  • StatusCake

    Price Free plan; paid from $20.41 / month

    Not rated yet

    Monitors uptime, page speed, SSL certificates, domains and servers from 30 countries, with alerts to the tools a team already uses.

    Strengths

    • Free plan with 10 uptime monitors, and a 7-day trial of any paid plan without a card
    • Uptime checks from 30 countries, down to every 30 seconds on Business
    • Terraform provider for managing monitors as code
    • Alerts to Slack, PagerDuty, Microsoft Teams and ten other named services

    Limitations

    • The official site describes no accessibility or technical SEO checks
    • The page speed monitor names no metrics such as Core Web Vitals or Lighthouse scores
    • Server monitoring starts on Superior, with 3 servers on that plan
    • The audit log needs the Business plan
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  • Acquia Web Governance

    AI featuresMCP-ready

    Not rated yet

    Scheduled scanning of large websites for accessibility, content quality, SEO and privacy compliance.

    Strengths

    • Accessibility scanning against WCAG 2.0, 2.1 and 2.2, including PDF documents
    • Scans run daily, weekly or at custom intervals, plus on-demand checks of single pages
    • Unlimited users on every subscription
    • An MCP server brings its checks into Claude and other MCP-compatible agents

    Limitations

    • Pricing is not published and is quoted on request
    • Performance Scans are only included on the Enterprise plan
    • Security checks are not part of the stated scope
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  • Oh Dear

    AI featuresMCP-ready

    Price From USD 17 / month

    Not rated yet

    Monitors uptime, certificates, broken links, Lighthouse scores and DNS across many websites from one account.

    Strengths

    • Every check is included on every plan; only the number of sites changes
    • Uptime checks from 33 servers in 16 cities, every minute by default
    • Official MCP server for querying monitors from AI assistants
    • Unlimited users with roles, SSO and two-factor authentication

    Limitations

    • No dedicated WCAG audit beyond the Lighthouse accessibility score
    • The broken-link crawl stops at 5,000 pages or 20 minutes per run
    • The crawler does not run JavaScript, so links injected by scripts are missed
    • AI checks need your own provider API key after five free calls
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  • FirstSpirit DQM

    AI features

    Not rated yet

    Scans large websites for accessibility, SEO, brand consistency and compliance issues, with checks inside the CMS.

    Strengths

    • Checkpoints aligned to WCAG 2.2, with Section 508, ADA and European Accessibility Act support
    • Editors can validate a page against every checkpoint inside their CMS before publishing
    • Exportable conformance reports for audits
    • Detected issues can become Jira tickets

    Limitations

    • Prices are not published; the only route in is a demo request
    • Neither security scanning nor page speed testing is named among its checks
    • Scan frequency is not stated on the product page
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  • SortSite

    Price From USD 149 / user

    Not rated yet

    Desktop and cloud website tester for WCAG accessibility, broken links, browser compatibility, SEO and HTML standards.

    Strengths

    • Covers 320 WCAG 2.2 checkpoints plus Section 508
    • Tests internal sites behind firewalls and password-protected pages
    • Checks PDF and Microsoft Office files as well as HTML and CSS
    • Browser compatibility checks for desktop and mobile browsers

    Limitations

    • Each scan stops at 22,000 pages
    • SEO checks and exports need the Professional edition
    • No page speed checks are listed
    • Prices for the OnDemand cloud edition are not published
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  • Sitemorse

    Price From USD 300 / month

    Not rated yet

    Scores websites on accessibility, links, SEO, performance, brand, spelling and privacy, with uptime monitoring included.

    Strengths

    • Nine assessment areas, including privacy through a partner's auditor
    • Uptime monitoring from nine locations comes with every domain
    • Published prices for every module
    • Findings can be kept and searched for up to seven years

    Limitations

    • Scheduled tests run weekly; only up to five key pages are checked daily
    • Custom brand rules and supported setup are one-time charges in the thousands of dollars
    • No supported CMS is named for the INCMS integration
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  • Uptime Kuma

    Price Free

    Not rated yet

    Open-source, self-hosted monitor for websites, ports, DNS and containers, with status pages and alerts to more than 90 services.

    Strengths

    • Free and open source under the MIT licence
    • Checks at intervals down to 20 seconds
    • Notifications to more than 90 services, from Telegram to email
    • Status pages mapped to your own domains, and metrics exported to Prometheus

    Limitations

    • You install, update and back it up yourself, and NFS file systems are not supported for its data
    • The project documents its main API as internal, with breaking changes possible between versions
    • FreeBSD, OpenBSD and NetBSD are not supported for an install without Docker
    • The official documentation describes no accessibility, technical SEO or page speed checks
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  • Little Warden

    Price From GBP 24.99 / month

    Not rated yet

    Monitors many websites for expiring domains and SSL certificates, broken redirects and changed SEO settings.

    Strengths

    • Over 30 checks, from domain and SSL expiry to canonical and hreflang changes
    • Alerts by Slack, email, API and webhook
    • Published prices with unlimited team members from the second plan up
    • 40-day free trial without a credit card

    Limitations

    • No accessibility checks
    • The Freelancer plan has no API access and keeps only two weeks of data
    • Check frequency is not stated
    Visit site

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