Minimal remote request · No file body
DNS lookup
Resolve public DNS records for a hostname. Free when the Worker is live.
Deploy the ToolStudio Worker and set NEXT_PUBLIC_WORKER_URL to enable DNS lookup.
- A
- AAAA
- MX
- TXT
- CNAME
- Public hostnames only
- Needs the Worker URL
How to use DNS lookup
Three steps. This tool asks the ToolStudio Worker for a small public fact. No file is uploaded. Only the hostname and record type are sent.
- 1
Enter a hostname.
Enter a hostname.
- 2
Pick a record type.
Pick a record type.
- 3
Read the answers.
Read the answers.
Essential questions answered
Short answers for search and answer engines. Same facts as the FAQ.
How do I look up DNS online?
Enter a hostname, pick a record type, and read the answers.
Can I look up internal hostnames?
No. Private and reserved names are blocked.
Why might this be hidden?
It appears in the directory only when the Worker URL is configured.
Good for everyday workflows
Check A and AAAA records
Query public DNS records for a hostname via DNS-over-HTTPS on the Worker.
Inspect MX for email
Query public DNS records for a hostname via DNS-over-HTTPS on the Worker.
Read TXT for verification
Query public DNS records for a hostname via DNS-over-HTTPS on the Worker.
Frequently asked questions
Is DNS lookup free?
Yes on ToolStudio.
Which record types?
A, AAAA, MX, TXT and CNAME.
Is a file uploaded?
No.
Pick a tool. Get it done.
Free browser utilities on ToolStudio. No account. Most tools keep files on this device.