Show HN: Using Cloudflare 1.1.1.1 DNS over HTTPS API to bulk search domain TLDs(supersaas.dev)

11 pointsby fayazara2 ปีที่แล้ว4 comments

Show HN: Using Cloudflare 1.1.1.1 DNS over HTTPS API to bulk search domain TLDs

https://supersaas.dev/tools/domain-check

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"

4 comments

stets2 ปีที่แล้ว

Cool but...it doesn't work, like pizza returns pizza.org and pizza.net as free.

simjnd2 ปีที่แล้ว

I typed "test.io" in the input box and it checked for "test.io.org", "test.io.com" and even "test.io.io" but not "test.io".

fayazara2 ปีที่แล้ว

Ah, you just need to enter the domain name, I've hard-coded the tlds to check. I'll add .io

Airyisland2 ปีที่แล้ว

I previously also made a domain name availability checking tool, but it only used DNS queries as first step. For more accurate results, it still needs to rely on WHOIS. https://query.domains