Free Website Health Check
Broken Links, SSL & Uptime
Paste a URL. We'll sweep it for broken links, SSL expiry, bad status codes, and private metadata exposed in linked files — free, no signup.
What we check
Dead links & 404s
Tests every internal link on up to 10 pages and flags 4xx and 5xx responses.
SSL validity & expiry
Whether the certificate is valid, the chain is complete, and how many days remain.
HTTP errors across pages
Every page returning a non-200 status: server errors, access denied, missing resources.
Reachability & response time
Whether the site responds, and how fast. Slow homepages hurt rankings and conversions.
Redirect loops & HTTP → HTTPS
Redirect loops, and whether plain HTTP visitors are sent to HTTPS.
Domain registration & expiry
Expiry date and days remaining, read from RDAP (the WHOIS successor).
Homepage SEO & social metadata
Title, description, canonical and Open Graph tags, plus a stray
noindexthat tells Google to drop the site.Leaked file metadata
Author names, email addresses, file paths, software, device details and GPS in linked PDFs, images and Office files.
DNS records
A snapshot of your A, MX, NS and other records today. Monitoring alerts you when one changes.
This is a one-time snapshot.
Want email-deliverability checks as well as continuous monitoring and alerts? Monitor one site free forever.
Guides for issues we check
Looking for a general website checker, or need to check if a website is down? Both use this same free sweep with a more focused explanation.
Frequently asked questions
Is the checker really free?
Yes — no signup, no credit card, no catch. You get one full sweep of your site: uptime, SSL, broken links, redirects, HTTP status codes, and hidden metadata in linked files. The free check crawls up to 10 pages. That's it.
Do you store my site's data?
We cache your results for 60 minutes so the report URL is shareable with a client. After that the data is deleted automatically. We don't retain anything long-term unless you create an account.
How many pages do you check?
The free tool checks up to 10 pages — the homepage plus the internal links it finds from there. Paid plans crawl more pages and run on a schedule.
How is this different from monitoring?
This is a one-time snapshot — you run it, you get results, done. SitesRadar monitoring watches your site on a schedule (daily or more frequent) and alerts you the moment something breaks. Think of this as a free sample.
Do you check my domain registration?
Yes — we query the public RDAP registry (the modern replacement for WHOIS) and show the exact expiry date and days remaining. Some country-code registries don't publish expiry dates; when that happens we say so honestly instead of guessing.
Can I check a site I don't own?
Yes. We make the same HTTP requests a browser would — nothing more invasive than visiting the site. We identify ourselves with a user agent string, and thecrawler page explains how to block us.
Do you monitor DNS changes?
The free check shows a snapshot of your A, AAAA, CNAME, NS, MX and TXT records right now. Monitoring is what the paid radar does — it watches for silent changes and alerts you the moment a record changes, which is often how a hijack or a botched migration first shows up.
Why is my site showing as blocked?
Some sites use Cloudflare, AWS WAF, or similar tools that block automated requests. If that happens we'll tell you honestly — we confirmed the site is responding, but couldn't inspect its pages. The score will reflect what we could determine.