Domain Extractor | How to use and interpret results
Collect domain-looking strings from longer text and reduce duplicates. Use it when host-name candidates are more useful than complete URLs, without treating the list as a registration check.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
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How to use this tool
Paste an email body or link list and extract candidates. Names are lowercased and a leading www can be removed, so retain the original when exact hosts matter.
Results and examples
https://www.example.com/a and https://example.com/b can consolidate to example.com. This does not identify the registrable-domain boundary of every public suffix.
Worked example
https://www.example.com/a and https://example.com/b can consolidate to example.com. This does not identify the registrable-domain boundary of every public suffix.
Limitations
- No DNS lookup or site visit is performed.
- Regex-based extraction does not fully cover internationalized domains or every suffix rule.
Fields
| Field | Guidance and constraints |
|---|---|
| Text / URL list | Check the unit and format displayed beside this field. |
| Domain list | Check the unit and format displayed beside this field. |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
What happens to example.com links with different paths?
https://www.example.com/a and https://example.com/b can consolidate to example.com. This does not identify the registrable-domain boundary of every public suffix.
Does every result identify an existing domain?
No DNS lookup or site visit is performed. Regex-based extraction does not fully cover internationalized domains or every suffix rule.
