Free tools

Free website tools, no sign-up

Quick checks for the things that break, slow or expose a website, grouped by the same seven categories Janitor monitors. Run one for free, then let Janitor watch them all across every client site and put the result in a branded report.

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Website health check

A free health check across two dozen signals, in one branded report.

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Availability

HTTP status checker

Check the HTTP status and full redirect chain for a URL.

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TLS and domain

SSL certificate checker

Check a certificate issuer, validity dates and days to expiry.

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Domain expiry checker

Check when a domain registration expires and who it is with.

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HTTPS redirect checker

Check that http:// redirects to https:// as it should.

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DNS and email

SPF, DKIM and DMARC checker

Look up the email authentication records on a domain.

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DNS lookup

Look up A, AAAA, MX, TXT, NS and CNAME records for a domain.

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SEO and discoverability

Broken link checker

Find broken links on a page and the status code each returns.

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Open Graph checker

See how a page looks when shared, and what tags it is missing.

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Robots and sitemap checker

Check a site robots.txt and find and validate its sitemap.

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Custom 404 page checker

Check that missing URLs return a proper, styled 404.

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Security

Security headers checker

Grade a page on the HTTP security headers it sends.

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Mixed content checker

Find insecure http resources loaded by a secure https page.

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CMS detector

See the CMS and server software a site gives away.

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Privacy and compliance

Cookie consent checker

Detect whether a page renders a known cookie consent banner.

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Pre-consent tracking checker

See which trackers load before a cookie banner can gate them.

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Performance

Page weight checker

Measure the HTML weight of a page in kilobytes.

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Agency tools

Beyond the checks, for running the business side of a care plan.

Care-plan pricing calculator

Work out three-tier care-plan prices from your costs and target margin.

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Get started

One tool, or all of them, for every client

Janitor runs around two dozen checks on every site you manage and turns them into a branded report.

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30-day free trial. No credit card required.