Most websites have problems their owners don't know about. Not the dramatic kind that crashes a server. The quiet kind — a broken script, an expiring SSL certificate, missing security headers, images that silently fail to load.
These issues don't trigger uptime alerts. They just make the experience worse for visitors while every dashboard says "all green."
We built a free scanner that finds them in 20 seconds: getsitewatch.com/scan
No signup. No email. Just paste a URL and get a full health report.
What It Checks
Broken Assets — Every image, script, and stylesheet your page references. Do they actually load, or do they return 404? A missing JavaScript file can break your entire page while the server happily returns 200 OK.
SSL Certificates — Is your cert valid? When does it expire? Is the chain complete? An incomplete chain means your site works in Chrome but throws warnings in Safari and on mobile. 88% of companies have had an outage from an expired cert in the past two years.
Mixed Content — Does your HTTPS page load anything over HTTP? Browsers block this silently. No error. Images just don't render. Common on WordPress sites after an SSL migration.
Security Headers — CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy. Most sites are missing at least two. These are basic protections against XSS and clickjacking that take 15 minutes to set up.
Schema & SEO — JSON-LD validation, Open Graph tags, canonical URLs. If these are broken, your links look bare when shared and Google can't generate rich snippets for your pages.
Discoverability — Does your robots.txt exist? Is there a sitemap? Surprisingly often the answer is no, especially on SPA and Jamstack sites.
What We Typically Find
We've run this on hundreds of sites. The pattern is consistent:
- Almost every site is missing security headers
- Roughly 3 out of 10 have at least one broken asset
- SSL issues are more common than anyone expects
- SEO metadata is frequently broken or missing after CMS updates
Most of these sites look perfectly fine when you open them in a browser. The problems are invisible until you actually check.
How It Works
The scanner fetches your page, enumerates every subresource, validates each one returns a successful response, inspects headers for security policies, checks SSL certificate validity and chain completeness, and validates structured data and SEO metadata.
Results come back as a prioritized report: critical issues first, info-level findings last. Every finding includes a plain-language explanation of what it means and how to fix it.
Try It
getsitewatch.com/scan
20 seconds. Completely free.
If you want these checks to run continuously and alert you when something breaks, that's what Sitewatch does — website monitoring that catches what uptime tools miss. But the one-time scan is yours with no strings attached.
Curious what your site's health rating looks like.