Extract Domains Now
Step 1 β Choose input method
π
Click to upload or drag & drop
TXT Β· CSV Β· HTML Β· JSON Β· XML Β· LOG Β· MD (Max 20MB)
Step 2 β Configure extraction
Step 3 β Extract
What Domain Extractor Online does β and who it's for π Extract now
Cleaning domains out of messy input used to mean juggling regex snippets, spreadsheet formulas, and command-line one-liners. This tool does all of that in one paste. Here's the short version.
π― What it does
Takes any input β a paragraph of text, a list of URLs, an email dump, a log file, HTML source β and returns a clean, deduplicated list of every domain mentioned. Handles multi-part TLDs (.co.uk, .com.br), new gTLDs (.dev, .app), and public suffixes (github.io, appspot.com) correctly via the Public Suffix List.
π€ Who it's for
SEO specialists preparing Disavow files or auditing backlinks. Security analysts pulling IOCs from threat feeds. Marketers cleaning lead lists. Developers preprocessing log data before running WHOIS or DNS lookups. Anyone whose "just extract the domains" job is stuck between a regex and a coffee break.
π Why it's safe
Every byte of processing happens in your browser's JavaScript sandbox. Your text, uploaded files, and results are never sent to our servers β there's no upload API, no logging, no analytics on the content itself. Works offline once the page loads. Verifiable in your browser's DevTools Network tab.
β‘ Why it's fast
Optimized regex tokenizer processes 20MB in under 2 seconds on a mid-range laptop. Bulk mode handles 3,000+ domains without freezing the UI. TLD validation against a bundled IANA list (no round-trips). Public Suffix List logic is compiled into the JavaScript engine β no external API dependencies.
π‘ What makes it different
Most free extractors just grab anything that looks like x.y. This one validates against IANA, reduces to registrable domain with PSL rules, and gives you fine-grained control β filter by TLD, sort by length or group, keep or strip subdomains, extract emails alongside, export in three formats. And the tool section fits on one screen β no scrolling to find the Extract button.
π Available in 10 languages
English (US / UK / Canada / Philippines regional variants), Polski, Bahasa Indonesia, TiαΊΏng Viα»t, ΰΈ ΰΈ²ΰΈ©ΰΈ²ΰΉΰΈΰΈ’, TΓΌrkΓ§e, EspaΓ±ol. Each version is a proper native translation with localized TLD examples (.vn, .co.th, .com.tr, .es) β not machine-translated boilerplate.
How to Use β Step by Step Tutorial π Extract now
Step 1: Choose Your Input Method
- Paste Text: Copy and paste any text containing domains, URLs, or emails
- Upload File: Upload TXT/CSV/HTML/JSON/XML/LOG/MD (up to 20MB)
- Load Sample: Click any quick-sample button above to see how it works
Step 2: Configure Extraction Options
- Source Type: Plain text, URLs, or emails β pick what matches your input
- Domain Mode: Remove duplicates (default), keep subdomains, or registrable only
- TLD Filter: All TLDs, popular (com/org/net/β¦), or custom list
- Domain Level: Root only, 2-level, 3-level β narrow to what you need
- Sort: Alphabetical, by length, or grouped by TLD
Step 3: Extract & Analyze
- Click the big π Start Calculate button
- Page auto-scrolls to the results β no hunting for output
- Use per-row π (Google Index), π (open), π (WHOIS), π (copy) actions
- Click π Recalculate in the results panel to jump back to input and try new options
Step 4: Batch Operations
- Select All / Deselect All: Quickly select all domains
- Batch Google Index Check: Open Google site: for each selected domain
- Batch Open: Open selected domains in new tabs (10+ tabs prompts confirm)
- Batch WHOIS: Look up registration info for multiple domains
Step 5: Export Your Results
- CSV: Import to Excel / Google Sheets
- TXT: Plain-text list, one per line
- JSON: Structured data with counts and timestamp
- Copy All: Instantly paste anywhere
Related Tools π Extract now
Pick the tool that matches your exact use case β each has tuned defaults and examples.
Why Use Our Domain Extractor? π Extract now
Bulk Processing
Handle up to 20MB and 3,000+ domains in a single run.
100% Private
Runs client-side in your browser β nothing uploaded to any server.
Smart Filtering
Remove duplicates, filter by TLD, custom whitelist, subdomain level.
Multiple Formats
Export CSV, TXT, JSON, or copy to clipboard in one click.
Multi-format Input
Supports TXT, CSV, HTML, JSON, XML, LOG, MD files.
No Signup
Zero registration, zero limits, works on any modern browser.
Common Use Cases π Extract now
For IT Security Professionals
- Threat Intelligence: Extract IOCs (indicators of compromise) from threat feeds
- Log Sanitization: Clean access logs into deduped domain lists for firewall rules
- Phishing Analysis: Parse suspicious emails and get every referenced domain
For Marketing Teams
- Lead Generation: Extract company domains from scraped contact lists
- Competitor Analysis: Pull competitor domains from industry reports
- Email List Cleaning: Dedupe by domain to avoid over-mailing accounts
For SEO Specialists
- Backlink Analysis: Deduplicate referring domains from export files
- Disavow List Prep: Extract root domains for Google Disavow submissions
- Migration Audits: Verify redirect targets by parsing sitemap URLs
For Developers & Data Analysts
- Data Cleaning: Normalize URL columns in CSV/Excel datasets
- Log Parsing: Extract unique hosts from server access logs
- API Preparation: Build clean host lists before running WHOIS/DNS batch jobs
Domain Extraction β Technical Details π Extract now
What counts as a "domain"?
A domain name identifies a resource on the Internet. It consists of one or more labels separated by dots, ending in a top-level domain (TLD). For example, blog.example.co.uk has a subdomain blog, a registrable domain example.co.uk, and a TLD uk (with a secondary suffix co).
Our extraction algorithm
- Tokenise the input with a regex that matches hostname-shaped strings, including those wrapped by
http://,https://, orwww.. - Detect emails separately with an RFC-5322-style pattern and split on
@to grab the domain part. - Validate each candidate against a comprehensive TLD list (all IANA TLDs including new gTLDs).
- Optionally reduce to registrable domain using a public-suffix-list style approach (so
a.b.example.co.ukbecomesexample.co.uk, notco.uk). - Deduplicate case-insensitively, then sort per your preference.
Regex patterns used
domain: /(?:https?:\/\/)?(?:www\.)?([a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,}/gi
email: /([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z]{2,})/giSupported input examples
| Input | Extracted |
|---|---|
Visit https://blog.example.com/post | blog.example.com |
Email me at [email protected] | shop.example.co.uk |
www.github.com/user | github.com |
See https://cdn.jsdelivr.net/npm/vue | cdn.jsdelivr.net |
Bare hostname: api.stripe.com/v1 | api.stripe.com |
Where to Buy a Domain β Cheapest Registrars in 2026 π Extract now
Once you've extracted a shortlist of interesting domains, the next question is where to actually register them cheaply. Domain prices vary wildly β the same .com can cost anywhere from $9 to $22 per year depending on the registrar, and hidden renewal jumps can quadruple the sticker price. Here are the current honest options based on 5-year total cost of ownership, verified against public pricing pages in August 2026.
| Registrar | .com first yr | .com renewal | Free WHOIS | Verdict | |
|---|---|---|---|---|---|
| Cloudflare Registrar | $10.44 | $10.44 | β | At-cost pricing β zero markup, but you must use Cloudflare nameservers. Only handles transfers-in for many TLDs. Best for technical users comfortable with DNS. | Visit |
| Porkbun | $11.06 | $11.06 | β | Best all-rounder. Flat pricing forever, register any TLD, use any nameserver, includes free WHOIS privacy + free email forwarding + free SSL. Great for non-technical buyers. | Visit |
| Spaceship | $9.08 | $9.98 | β | Cheapest first year at $9.08 with only a small renewal bump. Newer registrar (2023) but backed by Namecheap. Slick modern interface. | Visit |
| Dynadot | $10.88 | $10.88 | β | Single-tier pricing since 2025 β everyone pays the same low rate. 500+ TLDs. Great alternative to Porkbun with slightly lower .com. |
Visit |
| NameSilo | $11.05 | $11.05 | β | Transparent pricing with optional Discount Program dropping bulk to $7.75/yr for 5,000+ domains. Good for portfolio holders. | Visit |
| Namecheap | $5.98 | $13.98 | β | Lowest first-year price via frequent promos, but the renewal jump makes it more expensive than Porkbun over 5 years. Nice UX and add-on ecosystem (email, hosting). | Visit |
| GoDaddy | $0.99 | $21.99 | β ($9.99/yr) | Avoid. The $0.99 first year masks $21.99 renewals plus $9.99/yr for WHOIS privacy that competitors give free. Over 5 years you pay $121+ vs $45 at Cloudflare. Feb 2026 ToS change also raised concerns. | Visit |
Note: Prices are publicly listed rates as of August 2026 and do change. Always verify at the registrar's checkout before purchase. We may earn a small referral fee from some registrars linked above β this never affects the price you pay, and our verdicts are based on real cost calculations, not commission size.
Popular TLD Pricing Reference π Extract now
Different TLDs have wildly different wholesale prices set by their registry operator. Here's a quick reference for the most popular TLDs and where to get them cheapest (verified Aug 2026):
π° Try this in the tool: Extract a list of domains, then click the π° icon on any result to see current pricing for that specific TLD.
Domain History & Trivia π Extract now
Every domain has a history. Knowing what to look for helps you evaluate whether a domain is worth registering, buying at auction, or avoiding entirely.
symbolics.com, registered on 15 March 1985 by the now-defunct Symbolics Computer Corporation. As of 2026 it still resolves β Napkin.com acquired it in 2009 as a piece of internet history.voice.com, sold to Block.one in 2019 for $30 million. Other giants: cars.com ($872M as part of a business sale), lasvegas.com ($90M), internet.com ($18M).- Age: Older domains (registered pre-2005) often have accumulated backlinks and Google trust. Check Wayback Machine to see when a domain first went live.
- Backlink profile: Domains with a history of legitimate content and inbound links carry SEO value. A domain that was previously used for spam can hurt your rankings.
- Brandability: Short (β€7 characters), pronounceable, .com β the classic trifecta. These rarely go for less than $2,000 on aftermarket.
- Keyword match: "Exact match" domains (like
buycoffee.com) have diminished but non-zero SEO value in 2026. - Historical use: Was it a former spam site? A former Google-penalised site? Wayback Machine + a quick Google search of
site:domain.comwill surface warnings.
Frequently Asked Questions π Extract now
example.com) out of unstructured input β raw text, URL lists, email addresses, log files, or HTML source. It removes duplicates and can filter by TLD or subdomain level.blog.example.com). "Registrable only" strips to what you would actually buy at a registrar (e.g. example.com, or example.co.uk for country-code second-level TLDs).