Website Health Report: SSL, Headers, DNS

Full domain security audit in one call: SSL/TLS, DNS, SPF/DKIM/DMARC, security headers, WHOIS, blacklist, tech stack — PLUS subdomain-takeover risk and public S3-bucket exposure detection, which no other domain-audit tool checks. Returns a 0-100 health score + fix list. No API key, no login.

Website HTTPS & SSL Health Checker

pillowy_travel/website-https-ssl-health-checker

Checks HTTPS availability and SSL certificate health for given URLs

Website domain name validator

saswave/website-domain-name-validator

Verify if a website is still up and running or if it contains a redirection to a new domain name. Data enrichment at scale.

Domain Health Checker

zinin/domain-health-checker

Audit DNS resolution, MX, SPF, DMARC, name servers, and TLS for a list of domains. Complete evidence cards include a 0–100 score, source states, issues, confidence, data gaps, and a next action. Incomplete or unsafe destinations remain unscored and are not billed as results.

🩺 Website Health Check — All-in-One Audit

upstanding_biobot/website-health-check

Comprehensive website health audit: accessibility (axe-core), security headers, SSL/TLS, broken links, sitemap, robots.txt, structured data, meta tags, performance signals. One scan, full picture.

Bulk URL Status Checker — Broken Links, Redirects & SSL

hipersoft/bulk-url-checker

Check thousands of URLs over plain HTTP: status codes, broken links (404/410/5xx), full redirect chains, response time, content type, page title and SSL certificate expiry.

Domain Vet - Domain History Health Auditor

lenient_grove/Domain-Vet-Domain-History-Health-Auditor

Domain Vet audits a domain’s history and technical health using public data. It detects spam, drops, blacklists, SSL issues, and risky past usage to deliver a clear Buy, Caution, or Pass decision.

Bulk Security Headers & SSL Expiry Checker

batreek/security-headers-ssl-audit

Check HTTP security headers (HSTS, CSP, X-Frame-Options, Referrer-Policy, Permissions-Policy...), SSL expiry, certificate issuer, HTTPS redirects and cookie flags for thousands of websites. Get an A-F grade and fixes per site.

Get every URL from a site's sitemaps with lastmod, changefreq and priority. Finds sitemaps via robots.txt, follows sitemap indexes, reads .xml.gz and text sitemaps, removes duplicates and flags invalid entries. An unreadable sitemap is billed as one URL; blocked hosts are free.

One call, one JSON per domain: DNS records, SPF/DKIM/DMARC email-auth grade, TLS certificate, security-header score, detected tech stack and a prioritised findings list. Ideal for agencies, security checks and AI agents.