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Paste unstructured text—CRM exports, server logs, HTML snippets, or mixed notes—and get back hostnames: the DNS names you would see after https:// or in an email address.
The scanner finds full URLs (including protocol-relative // links), markdown links, email addresses, JSON/HTML attributes, and dotted hostnames. IPv4/IPv6 literals are skipped so security and SEO lists stay hostname-focused.
Optional registrable-root mode rolls subdomains up using multi-part suffix rules (for example api.mail.google.co.uk → google.co.uk). For edge-case TLDs, use Maximum accuracy (PSL)—the Public Suffix List loads once in your browser. Export as CSV, JSON, or plain text.
Paste logs, emails, or URL exports → deduplicated hostnames or registrable roots. CSV/JSON export.
Paste server logs, email lists, or crawl exports—or upload a .txt/.csv/.log file (up to 2 MB). Up to ~500k characters per paste.
Use Simple mode for quick deduplication, or Advanced for registrable-root normalization, TLD filters, frequency view, and custom regex.
Sort A–Z or by frequency, filter by TLD, optionally validate hostnames, and group by registrable root.
Copy as newline list, or download CSV (with optional count column) or JSON. Clear the field when done on a shared machine.
Common real-world scenarios where this tool saves time.
Dedupe crawl or backlink URLs to unique sites before reporting—collapse www and subdomains with registrable-root mode.
Pull company domains from mixed email exports and CRM dumps without writing a script.
Harvest hosts from logs, configs, or JSON—faster than one-off regex when formats vary.
List hostnames from tickets or paste-ins; analysis stays offline in your browser tab.
Step-by-step chains that connect related tools for common tasks.
Input
Leads: alice@mail.partner.co.uk
See //cdn.partner.co.uk/assets
Article https://www.partner.co.uk/blog?id=1Output
mail.partner.co.uk
cdn.partner.co.uk
www.partner.co.ukThree hostnames from email, protocol-relative URL, and https link. With Normalize to registrable domain enabled, output collapses to partner.co.uk.
Input
203.0.113.42 - "GET https://api.service.co.uk/v1/data" 201
user@mail.example.com - "GET https://docs.example.com" 200Output
api.service.co.uk
docs.example.com
mail.example.comIPs are ignored; URLs and email domains are extracted and deduplicated for allowlist or vendor audits.
Choose root-domain mode based on accuracy needs and offline use.
| Mode | Best for | Trade-off |
|---|---|---|
| Fast (curated list) | Everyday .co.uk, .com.au, and common multi-part TLDs | Works offline after page load; may miss rare provider domains |
| Maximum accuracy (PSL) | github.io, regional nic TLDs, unusual public suffixes | Downloads Public Suffix List once in-browser; slightly slower first run |
Use this hub for mixed input; use narrow tools when format is known.
| Tool | Input shape | When to use |
|---|---|---|
| Domain Extractor (this page) | Logs, emails, URLs, exports | Bulk paste; dedupe and CSV/JSON export |
| /extract-domain-from-email | Email address lists | CRM or mailing-list exports only |
| /extract-domain-from-url | Line-oriented URLs | Sitemap or URL list imports |
| /extract-domain-from-text | Plain prose and snippets | Beginner text-only extraction |
URL-shaped input and ASCII punycode (xn--…) work reliably. For IDN, paste the canonical https link or punycode hostname.
Switch to Maximum accuracy (PSL) under Advanced so registrable roots match the Public Suffix List.
Input is capped (~500k characters) with safety limits on candidates; split very large logs and process in chunks.
Paste logs, CRM exports, or URL lists into the box—the scanner finds http(s) links, protocol-relative // URLs, email addresses, and bare hostnames. Results are deduplicated; turn on “Normalize to registrable domain” if you want one root per site (for example api.mail.google.co.uk → google.co.uk).
A hostname is the full DNS name (www.blog.example.com). The registrable domain is what you could register under a public suffix—often called the eTLD+1 (example.com, example.co.uk). This tool can show hostnames as extracted, then optionally roll subdomains up to that registrable root for reporting and deduplication.
The extractor handles mixed text: bare URLs (https://example.com/path), protocol-relative links (//cdn.example.com), markdown links ([text](https://url)), email addresses (user@domain.com), and plain hostnames. Paste logs, CSV exports, HTML source, or any mixed text.
Registrable-root mode strips subdomains and returns only the registrable domain—the part you would register with a registrar. For example, blog.company.co.uk becomes company.co.uk (using the Public Suffix List in PSL mode). Useful for summarizing which companies appear in a URL list.
Yes. Paste email addresses and the extractor returns the domain portion of each address. With deduplication and optional registrable-root mode, you get a unique company-domain list from any export.
Export as CSV (one domain per line, optional count column), JSON array, or plain newline-separated text. CSV counts help prioritize domains that appeared most often in the source.
Yes when the input is URL-shaped or uses ASCII punycode labels (xn--…). The browser’s URL parser normalizes hostnames like the address bar. Raw Unicode labels only in prose may be missed—prefer pasted links or punycode for full coverage.
The extractor skips IPv4/IPv6 literals, drops candidates that fail hostname validation, and ignores strings that never look like a URL, email, or dotted hostname. Enable Maximum accuracy (PSL) under Advanced for unusual TLDs and provider domains like github.io.
Fast mode uses a curated set of multi-part suffixes (e.g. .co.uk, .com.au) for speed and offline use. PSL mode downloads public suffix data and matches the longest registrable suffix—better for edge cases. Both modes stay in your browser.
By default www is kept as part of the hostname. You can strip www, dedupe www vs non-www, and normalize case from the options.
No. Parsing, filtering, and export run entirely in your browser tab. Nothing is sent to EverydayTools servers for this tool.
Input is capped at roughly 500k characters so tabs stay responsive. Very large pastes may hit candidate or unique-domain caps; the UI warns you to split the file.
Domain Extractor — Bulk URLs, Emails & CSV Export (/domain-extractor) runs in your browser when supported—inputs are not uploaded to EverydayTools servers.
Hostname validation follows browser URL parsing and conservative hostname rules. Registrable-root output depends on Fast suffix list or PSL mode as selected.
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Reviewed by EverydayTools Editorial Team on 2026-05-20.
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Bulk domain extraction
URLs, emails, server logs, CSV exports, and HTML — one scanner finds every hostname, rolls up registrable roots, and exports audit-ready reports. Everything runs locally in your browser.
Mixed input
URLs + emails + text
Root domains
Optional eTLD+1 mode
Export ready
TXT · CSV · JSON report
Private
Zero server upload
Step 1: Paste URLs, emails, or text
Step 2: Extract clean domains instantly
Try a sample dataset
Load realistic input — results update live as you paste or edit.
Optional: upload a plain text, CSV, or log file to load into the field above.
Or drop a .txt, .csv, or .log file here
All processing happens in your browser. No data is uploaded.
Paste URLs, emails, or text to extract domains
Output preview
example.com google.com company.org