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Check .io domains with DNS fallback

Show how the checker handles a TLD without public RDAP. .com is answered by the registry; .io is answered from DNS and may be likely_available. $0.001 per checked domain; $1 per 1,000; unsupported TLDs and errors are free if you turn DNS fallback off.

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Bulk Domain Availability Checker: WHOIS, RDAP & Expiry
Bulk Domain Availability Checker: WHOIS, RDAP & Expiryhillcountrybots/domain-availability-checker
Domain
Status
Registrar
Created
+4 fields
Text
Number
Boolean
List
Object

Input

Domains:google.com+1
DNS fallback for TLDs without RDAP:true

Output fields

Domain
Status
Registrar
Created
Expires
Nameservers
Method
Note

How it works

Sign up on Apify or log in

The Bulk Domain Availability Checker: WHOIS, RDAP & Expiry Actor is ready to run with the inputs already set for "Check .io domains with DNS fallback". Sign up or log in and you'll land in Apify Console with a copy of this exact task.

Start the "Check .io domains with DNS fallback" task

The Bulk Domain Availability Checker: WHOIS, RDAP & Expiry Actor will start running based on the input automatically. You can also change all the input fields, like domains and DNS fallback for TLDs without RDAP, to match your specific use case.

Receive the "Check .io domains with DNS fallback" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as domain, status, registrar, and more.

Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Check .io domains with DNS fallback" task via API.

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Integrate "Check .io domains with DNS fallback" into your workflow

Connect "Check .io domains with DNS fallback" with 100+ integrations, or run it via API or MCP.

Webhook

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Frequently asked questions

TLDs with no public RDAP in the IANA bootstrap file, including .io, .co, .de and .us. Turn DNS fallback off to get unsupported_tld instead (free).

No. Confirm at a registrar. DNS can lag, and some names are reserved or premium.