Free Website Health Check
Broken Links, SSL & Uptime
Paste a URL. We'll sweep it for broken links, SSL expiry, and bad status codes — free, no signup.
What we check
● BROKEN LINKS
Dead links & 404s
Crawls up to 10 pages and tests every internal link — flags anything returning a 4xx or 5xx status.
● SSL
SSL cert validity & expiry
Checks the certificate is valid, the chain is complete, and how many days are left before it expires.
● STATUS CODES
HTTP errors across pages
Surfaces every page returning a non-200 status — server errors, access denied, missing resources.
● UPTIME
Reachability & response time
Confirms the site responds and measures how fast — slow homepages hurt both rankings and conversions.
● REDIRECTS
Redirect loops & HTTP → HTTPS
Detects redirect loops and checks whether the homepage correctly redirects plain HTTP visitors to HTTPS.
● DOMAIN EXPIRY
Domain registration & expiry date
Looks up the domain's registration (via RDAP, the WHOIS successor) and shows how many days until it expires — the one renewal nobody notices until the whole site vanishes.
● METADATA & NOINDEX
Homepage SEO & social metadata
Reads the homepage's title, meta description, canonical URL and Open Graph tags — and flags a stray noindex that silently tells Google to drop the site from search results.
● DNS RECORDS
A, MX, NS and more
We watch for silent changes — a snapshot today, and an alert the moment a record changes when you're on monitoring.
This is a one-time snapshot.
Want email-deliverability checks as well as continuous monitoring and alerts? Start a free trial to add sites to your radar.
Guides for issues we check
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, and HTTP status codes. 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 respect
robots.txtand identify ourselves with a user agent string. - 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.