Technical SEO
Title, description, H1, canonical URL, robots.txt, sitemap.xml and image alt coverage.
Free · read-only · no account
Check your website before you launch.
Scan a public URL for practical technical SEO, social preview, security-header and launch-readiness issues. Get a clear report without giving us website access.
✓ Public URLs only✓ No login required✓ No changes made✓ No application scan history
Focused by design01 02 03 04
Four groups of checks that matter at launch
LaunchCheck avoids pretending to audit everything. It checks a defined set of public signals and explains what each result means.
Social previews
Open Graph title, description, image and URL, plus Twitter/X card metadata.
Security headers
HTTPS, HSTS, MIME sniffing protection, referrer policy, permissions policy and framing controls.
Technical readiness
HTTP status, mobile viewport, language, favicon, response timing, HTML type and structured data.
What the score means
A checklist, not a certification.
LaunchCheck reports what our server can observe from a public response at scan time. It does not log in, edit files, bypass access controls, run exploit payloads or certify accessibility, security, legal compliance or SEO performance.
A strong score means the checked launch signals are configured well. You should still test real user journeys, analytics, forms, payments, accessibility, performance and application security separately.
Read the complete launch checklist →Before you publish
- Confirm the final custom domain and HTTPS
- Remove staging or noindex directives
- Check titles, canonicals and sitemap URLs
- Verify social preview images
- Test key pages on a real phone
- Read the content for unfinished copy
Learn what you are fixing
Practical website launch guides
Wolcost guide
Website Launch Checklist: 25 Checks Before You Publish
A practical pre-launch checklist covering technical SEO, social previews, indexing, security headers, mobile setup and final quality checks.
Read guide →Wolcost guideMeta Titles and Descriptions: How to Write and Check Them
Understand what title tags and meta descriptions do, common launch mistakes, practical length guidance and how to review them page by page.
Read guide →Wolcost guideRobots.txt Explained: What to Check Before Launch
A practical guide to robots.txt, crawl directives, sitemap references and mistakes that can accidentally hide a site from search crawlers.
Read guide →Wolcost guideXML Sitemaps: Build a Clean Sitemap for a New Website
Learn what belongs in an XML sitemap, what to leave out, how to validate it and how sitemaps fit into a launch and indexing workflow.
Read guide →FAQ
Common questions
Does LaunchCheck change my website?
No. The checker makes read-only requests to public URLs and supporting public files such as robots.txt and sitemap.xml. It does not log in or modify the target.
Do you store my scans?
LaunchCheck does not maintain an application database of scan history. Hosting infrastructure may process normal request logs for reliability, security and abuse prevention as explained in our privacy policy.
Does a 100 score mean my website is secure or will rank well?
No. The score covers only the checks listed on this site. It is not a penetration test, ranking guarantee, accessibility certification or legal compliance audit.
Why can two scans differ?
Websites can return different responses because of deployment changes, redirects, CDN caches, bot protection, geography or temporary failures. LaunchCheck reports what it receives at scan time.