Technical SEO: free website tools
10 free technical seo tools for SEO consultants, content teams and agencies fixing crawl, indexing and on-page issues: StrikeDistanceSeoKit, SitemapHealthPulse, HreflangAudit, MigrationRedirectAudit, OpenGraphPreviewPulse, VideoSeoEmbedAudit, JobPostingSchemaPulse, ContentVelocityRadar, PublicPdfAccessPulse, MerchantListingAudit. Each runs a live, read-only scan with the full result free; fix packs and monitoring are optional.
10 free, read-only checks for SEO consultants, content teams and agencies fixing crawl, indexing and on-page issues. Run any of them on your own site; each shows a score, every check it ran and what to fix.
StrikeDistanceSeoKit
Enter a page that already ranks on page one or two, plus the keyword you want it to win. We check how tightly the page targets that query: the keyword in the title, H1, H2s, meta description, opening paragraph and URL, content depth, internal links pointing at the page with matching anchor text, FAQ structured data and how recently it was updated. You get a short, prioritized edit list.
Free scan · fix pack $4.99, monitor from $19/mo · try the demo
SitemapHealthPulse
A free, read-only check of your robots.txt and XML sitemap: is it declared, does it load, how many URLs, are they on your domain, and do a few sample pages actually return 200.
Free scan · fix pack $4.99, monitor from $9/mo · try the demo
HreflangAudit
Enter a page from your international site. We read its hreflang alternates and open each one (up to 12) to check valid language-region codes, x-default, self-reference, return links, that every alternate answers 200 and that canonicals do not contradict hreflang.
Free scan · fix pack $4.99, monitor from $9/mo · try the demo
MigrationRedirectAudit
Moved to a new platform or domain? Paste the URL of your old sitemap (or any sitemap of URLs that should still work). We test up to 60 of those URLs and report which ones 404, use temporary (302) instead of permanent (301) redirects, chain through several hops, or dump visitors on the home page.
Free scan · fix pack $4.99, monitor from $9/mo · try the demo
OpenGraphPreviewPulse
A free, read-only check of the Open Graph and Twitter card tags that control link previews on Facebook, LinkedIn, X, Slack and iMessage, with a preview and copy-paste tags.
Free scan · fix pack $4.99, monitor from $9/mo · try the demo
VideoSeoEmbedAudit
Enter a page on your site that embeds YouTube, Vimeo, Wistia or self-hosted video. We check what search engines and AI answers need to show your video: VideoObject structured data (name, description, thumbnail, upload date, duration), a video sitemap, a transcript or chapters on the page, and whether embeds load lazily or block the page. The pack has ready-to-paste VideoObject JSON-LD.
Free scan · fix pack $4.99, monitor from $19/mo · try the demo
JobPostingSchemaPulse
A free, read-only check of the JobPosting structured data on a careers or job page: title, dates, hiring organization, location or remote eligibility, salary range (pay transparency), employment type and description.
Free scan · fix pack $4.99, monitor from $9/mo · try the demo
ContentVelocityRadar
Enter a competitor's domain. We read its public XML sitemaps and count new and updated pages over 7, 30 and 90 days, by site section, with the newest URLs. On a monitor plan, you get each new page daily.
Free scan · fix pack $4.99, monitor from $19/mo · try the demo
PublicPdfAccessPulse
Paste a page that links to PDFs (agendas, forms, menus, reports) or a PDF link. We check up to three files for the machine-checkable basics: tags and structure, document language, title, real text instead of scanned images, bookmarks and security settings.
Free scan · fix pack $4.99, monitor from $9/mo · try the demo
MerchantListingAudit
Enter a product page. We read its structured data the way Google does for free merchant listings and shopping results: Product name, image, brand and identifiers (GTIN or MPN), Offer price, currency and availability, and the return policy and shipping details Google now shows in results (MerchantReturnPolicy and OfferShippingDetails, or your organization-level policies). The pack has corrected JSON-LD with your values filled in.
Free scan · fix pack $4.99, monitor from $9/mo · try the demo
Other tool groups
AI search and AI-agent readiness Email deliverability and domains Security, privacy and trust Conversion, signup and pricing Competitive and sales intelligence Performance and design Agencies and local business sites Newsletters and podcasts
Frequently asked questions
Are these technical seo tools free?
Yes. Every scan and its full result are free. An optional fix pack (copy-paste fixes for the failing checks) and monitor plans that re-check on a schedule are paid.
Do the tools change anything on my site?
No. They are read-only: they request public pages, files and DNS records the way a browser or mail server would, and never submit forms or log in.
Which technical seo tool should I start with?
Start with StrikeDistanceSeoKit; each result page links to related checks.