Check Your Website.
Know Its Health.
Free online tools to check DNS, SSL, email, security, domains, HTTP and overall website telemetry - all in one unified developer cockpit.
4 NS records found • DNSSEC active & verified
TLS 1.3 • Let's Encrypt • 84 days remaining
Gzip active • HTTP/2 multiplexing • 142ms TTFB
SPF & DKIM verified • DMARC policy active
Missing Content-Security-Policy & HSTS preload
Everything You Need to Check Your Website
Powerful tools to check your website, domain, DNS, security, and email configuration.
Website Health Check
Full website diagnostic
Run a full diagnostic on any domain: SSL, DNS, headers, and email security in one scan.
SSL Certificate Check
Verify certificate validity, expiry date, and chain of trust.
DNS Lookup
Inspect A, AAAA, CNAME, TXT, and NS records for any domain.
MX Record Lookup
Check mail server priority and routing for a domain.
IP Address Lookup
Resolve a domain or IP to its host, region, and network provider.
WHOIS & RDAP Lookup
Look up registrar, registration dates, and ownership records.
SPF Record Check
Confirm which servers are authorized to send mail for a domain.
DMARC Record Check
Check policy enforcement against spoofed and phishing email.
DKIM Record Check
Validate signing keys used to authenticate outgoing mail.
Security Headers Check
Scan for missing CSP, HSTS, and other protective response headers.
HTTP Headers Check
View the raw response headers returned by any URL.
How Web Health Works
From target input to website diagnostics in just a few seconds.
Enter your domain
Enter any public website or domain URL. No signup required, zero tracking code to embed, and zero agents to install.
Run the checks
Web Health runs checks to analyze DNS records, SSL certificates, HTTP responses, and security configuration.
Understand results
Review an actionable report highlighting healthy attributes, warnings, and clear information to help you understand your website.
One place for your website's health
Web Health brings essential website, domain, DNS, email, SSL and security checks together in one unified interface. Eliminate scattered terminal commands and inspect your website directly from your browser.
Built for the Web
Whether you're debugging DNS propagation, deploying production certificates, or auditing email deliverability, Web Healthprovides raw, deterministic answers instantly.
Is Your Website Healthy?
Run a website health check and find out in seconds. No account needed, no credit card, and no telemetry agents.
Core tools are free to use • Powered by Qcial Labs Infrastructure