HTTPS Checker
Free HTTPS redirect & SSL verification for any domain
What it does
Free HTTPS checker: single or bulk (up to 10 domains). SSL grade A+–F, redirect chain, security headers, HTTP/3, CAA, DNSSEC, mixed content. Export to PDF or JSON. No signup. Check your domain in seconds - free.
Does the same job
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- UCUsing Cloudflare 1.1.1.1 DNS over HTTPS API to bulk search domain TLDs2024 · supersaas.dev · ▲11
I found out Cloudflare has a DNS over HTTPS api via 1.1.1.1 resolver, figured I'd make a small tool out of it, as somene who keeps checking domain names for side projects which I never build, this kinda helps me look for something. It's not fully accurate, because it returns unavailable even for parked pages, which technically are available, but works for me. It just checks for A records via this endpoint https://cloudflare-dns.com/dns-query?name=${domain}&type=A Just make sure to pass this header - "application/dns-json"
Domain Availability CheckerApr 2026 · chromewebstore.google.com · ▲2Private, open-source bulk domain availability checker.
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