domaininventory.

Free domain tools

Practical, no-signup tools for researching domains — the same data we use inside DomainInventory.

Recent tools

NewPremium

Wayback Recovery

Enter a domain: the tool reads the Wayback Machine, skips parked, for-sale and empty months, and shows the three best archived versions of the site with how many pages were saved, so you can pick the one to recover.

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NewPremium

Afternic Domain Checker

Curated lists of domains found on Afternic and other marketplaces, checked in one table: keyword and Google search volume, Majestic Million global rank, website status, Ahrefs Domain Rating, Wayback archive count and history, registrar, creation and expiry dates — sortable, filterable, exportable to CSV.

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NewPremium

Domain Rank Checker

Browse curated domain lists with Ahrefs Domain Rating, Wayback archive count and history, website live age, registrar, creation and expiry dates — one sortable, filterable table with column settings and CSV export.

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DNS & Email

DNS Lookup

Look up the DNS records of any domain — addresses, mail servers, nameservers, TXT verification records and more.

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Reverse DNS Lookup

Find the hostname behind an IP address via its PTR record, and resolve a hostname back to its IPs.

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Premium

Reverse NS Lookup

Find every domain that uses a given nameserver — enter a nameserver like ns1.afternic.com and browse the full list of domains pointing to it.

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Reverse IP Checker

Find the other websites sharing a server — enter an IP or domain and see every other domain hosted on the same IP address.

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DNS Propagation Checker

Check a DNS record against multiple public resolvers worldwide to see whether a change has propagated everywhere.

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Email Security Checker

Audit a domain’s email setup: mail servers, SPF policy and lookup count, DMARC policy and DKIM selectors — with a deliverability grade.

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DNSSEC Checker

Check whether a domain is protected by DNSSEC and whether the signature chain validates.

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IP Geolocation

Look up the approximate location, ISP and network of any IPv4 or IPv6 address, or of a domain’s server.

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Website Hosting IP Checker

Find where a website is hosted — its server IP addresses, hosting provider or ISP, data-center location, reverse DNS and any CDN in front of it.

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WHOIS & Ownership

WHOIS Lookup

Full registration record for any domain via RDAP with WHOIS fallback — registrar, creation and expiry dates, nameservers and status codes.

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Domain Age Checker

See when a domain was first registered and exactly how old it is — a key signal of a domain’s value.

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Domain Expiry Checker

Check when any domain expires and how many days are left — spot dropping domains and renewal deadlines.

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WHOIS History Checker

Trace a domain’s history — how its nameservers, registrar and ownership have changed over the years, plus a certificate-based infrastructure timeline.

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Bulk WHOIS Checker

Paste up to 50 domains and get registrar, creation date, expiry date and status for each in one table.

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EPP Status Code Decoder

Paste EPP/ICANN status codes like clientTransferProhibited and get a clear explanation of what each one means.

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Availability & Names

Trademark Search

Check a name against trademark databases before registering or buying a domain — USPTO status lookup plus one-click searches of US, EU and WIPO registers.

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Instant Domain Search

Type a name and see instantly which extensions are available — results appear as you type, no search button needed.

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TLD Availability Checker

Check a name across popular TLDs at once — see which extensions are taken and which look available, with prices.

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Bulk Availability Checker

Paste a list of domains and instantly see which are registered and which look available to hand-register.

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Domain Name Generator

Turn a keyword into dozens of domain ideas with common prefixes and suffixes, and see which are available.

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Typo / Typosquat Finder

Generate common typos of your domain and see which are registered — essential for brand-protection.

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IDN / Punycode Converter

Convert internationalized domain names between their Unicode form (münchen.de) and punycode (xn--mnchen-3ya.de).

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Website Analysis

Website History Checker

See how far back a website goes — first and latest snapshots, captures per year and direct links to the Wayback Machine.

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HTTP Headers Viewer

Fetch the HTTP response headers and status of any URL — server, caching, security headers and more.

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Redirect Checker

Trace the full chain of redirects from a URL to its final destination, with the status code at each hop.

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Meta Tag & Open Graph Analyzer

Inspect a page’s title, meta description and Open Graph tags, and preview how it looks shared on social media.

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Website Technology Detector

Detect the technologies a website runs — CMS, JavaScript frameworks, analytics and hosting signals.

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Parked Domain Detector

Check whether a domain shows a real website or a parking lander, and which parking provider it uses.

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Domain Rating (DR) Checker

Check a website’s Domain Rating (DR) — Ahrefs’ 0–100 measure of backlink authority — for one domain or a whole list.

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Security & Trust

SSL/TLS Check

Inspect the SSL certificate of any website — issuer, validity window, days until expiry, covered hostnames and TLS version.

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Certificate Transparency History

List every SSL certificate ever issued for a domain from public Certificate Transparency logs.

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Subdomain Finder

Find the subdomains of a domain using public Certificate Transparency logs — no scanning required.

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DNSBL Blacklist Checker

Check whether a domain’s mail server IP is listed on major DNS blacklists like Spamhaus and SORBS.

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Investor Utilities

Domain Price Checker

Check what a domain costs to register, renew and transfer at live registrar rates.

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Bulk Domain Price Checker

Paste a list of domains and get registration, renewal and transfer prices for every one of them.

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NewPremium

Domain Rank Checker

Browse curated domain lists with Ahrefs Domain Rating, Wayback archive count and history, website live age, registrar, creation and expiry dates — one sortable, filterable table with column settings and CSV export.

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NewPremium

Afternic Domain Checker

Curated lists of domains found on Afternic and other marketplaces, checked in one table: keyword and Google search volume, Majestic Million global rank, website status, Ahrefs Domain Rating, Wayback archive count and history, registrar, creation and expiry dates — sortable, filterable, exportable to CSV.

Open tool
NewPremium

Wayback Recovery

Enter a domain: the tool reads the Wayback Machine, skips parked, for-sale and empty months, and shows the three best archived versions of the site with how many pages were saved, so you can pick the one to recover.

Open tool

TLD Price Comparison

Browse and sort live registration, renewal and transfer prices across hundreds of TLDs.

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Domain ROI Calculator

Enter purchase price, holding years, renewal cost and sale price to see your net profit, ROI and annualized return.

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Escrow Fee Calculator

Estimate the fees on a domain sale across popular escrow and marketplace services, and what you net.

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Domain List Cleaner

Paste a messy list of domains — strip URLs, www and duplicates, normalize case, and export a clean sorted list.

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Domain List Comparator

Compare two domain lists and see what’s only in the first, only in the second, and in both.

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Domain Portfolio Analyzer

Paste a portfolio list and get a breakdown of lengths, TLD mix, hyphens, numbers and other patterns.

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