What is an expired domain?

An expired domain is a previously registered domain name whose owner did not renew it. These domains become available for anyone to register, often retaining their existing backlink profiles, domain authority, and search engine history — making them valuable for SEO and branding. According to industry data, approximately 100,000 domains expire daily worldwide.

How does Domain Cub find expired domains?

Domain Cub automatically scrapes 280+ web sources continuously throughout the day, including Forbes, TechCrunch, Product Hunt, Hacker News, Reddit, Wikipedia, Bandcamp, and domain marketplaces. Each domain is checked for availability using RDAP/WHOIS and DNS resolution, then scored with a composite Quality Score. The platform currently indexes over 25,000 domains.

What is Quality Score (QS)?

Quality Score is Domain Cub's proprietary 0-100 composite metric. It combines Referring Domains (25pts), Domain Authority (25pts), Domain Age (15pts), Domain Length (15pts), Wayback Machine Captures (15pts), and Name Score (5pts) to evaluate a domain's value. A QS of 80+ is considered excellent, 60-79 is good, 40-59 is average, and below 40 is low quality.

How much do expired domains cost?

Domains with 'available' status can be registered at standard TLD prices: .com/.net/.org from $12, .io from $35, .ai from $80, .app/.dev from $15, .co from $30, .tv from $35, .fm from $100, .me from $10, .xyz from $3. Auction domains have variable pricing set by the marketplace.

How many domain categories does Domain Cub have?

Domain Cub offers 300+ niche categories spanning technology (AI, SaaS, Crypto, Cybersecurity), business (Finance, Real Estate, Startup), lifestyle (Travel, Food, Fitness, Fashion), health (Healthcare, Mental Health, Dental), trades (HVAC, Roofing, Electrical), and specialty niches (Beekeeping, Aquariums, Metal Detecting, Mushroom growing).

Who should use Domain Cub?

Domain Cub is designed for domain investors seeking high-value expired domains with existing backlink profiles, entrepreneurs looking for brandable names in specific niches, SEO professionals finding domains with established authority for 301 redirects or PBNs, and startup founders seeking short memorable domain names.

Why are expired domains valuable for SEO?

Expired domains retain their backlink profiles, domain authority, and search engine trust even after expiration. A domain with 50+ referring domains and a DA of 30+ can provide immediate SEO value that would take years to build from scratch. They can be used for new websites, 301 redirects to existing sites, or as part of a private blog network.

How often does Domain Cub update its data?

Domain Cub runs fully automated scraping continuously throughout the day, discovering new domains from 280+ sources. Domain availability is re-verified via RDAP/WHOIS checks on an ongoing basis. Quality metrics including Domain Authority, Referring Domains, and Wayback Machine captures are refreshed during each scan cycle.

What is Domain Authority and why does it matter?

Domain Authority (DA) is a search engine ranking score on a 0-100 scale that predicts how well a website will rank on search engine result pages. Higher DA indicates greater trust and ranking potential. In Domain Cub's Quality Score, DA contributes 25 out of 100 points — the joint-highest weight alongside Referring Domains.

What are referring domains and why do they matter?

Referring domains (RD) are the number of unique websites that link to a domain. Unlike total backlinks, RD measures link diversity — a domain with 100 referring domains from 100 different sites is more valuable than 100 links from a single site. In Domain Cub's Quality Score, RD contributes 25 out of 100 points.

Can I export domain lists from Domain Cub?

Yes, Domain Cub supports CSV export of filtered domain lists with all quality metrics included — domain name, status, Quality Score, Domain Authority, Referring Domains, Wayback captures, domain age, registration price, and category. Apply any combination of filters before exporting.

What TLDs does Domain Cub track?

Domain Cub tracks domains across all major TLDs including .com, .net, .org, .io, .ai, .app, .dev, .co, .me, .tv, .fm, .xyz, .cc, .us, .uk, .de, and many more. Registration prices vary by TLD: .com at $12, .io at $35, .ai at $80, .fm at $100, and .xyz as low as $3.

Domain Cub — Expired Domain Discovery Platform

Domain Cub helps you find, analyze, and acquire expired domain names across 300+ niche categories. The platform indexes over 25,000 domains and automatically scans 280+ authoritative web sources continuously throughout the day to discover domains with existing backlink profiles, domain authority, and SEO value.

Key Facts About Domain Cub

25,000+ domains indexed across 300+ niche categories
280+ data sources scraped automatically throughout the day
6 quality metrics combined into a composite 0-100 Quality Score
Continuous scanning — fully automated with zero manual intervention
Domains starting at $3 for .xyz TLD, $12 for .com
Free CSV export of filtered domain lists with full metrics

How to Find Expired Domains with Domain Cub

Choose a niche category: Browse 300+ categories (AI, SaaS, Crypto, Travel, Food, Fitness, and more)
Filter by availability: Set status to "Available" or "Auction" to find acquirable domains
Sort by Quality Score: Prioritize domains scoring 80+ (excellent) on the 0-100 scale
Evaluate metrics: Review Domain Authority, Referring Domains, Wayback captures, and domain age
Check history: View Wayback Machine archives to see previous site content
Register: Buy through any registrar (Namecheap, GoDaddy, Cloudflare, Porkbun) at standard prices

Quality Score Methodology

The Quality Score (QS) is a proprietary 0-100 composite metric combining six weighted components:

Component	Weight	What It Measures
Referring Domains (RD)	25 points	Number of unique websites linking to the domain
Domain Authority (DA)	25 points	Search engine trust score (0-100 scale)
Domain Age	15 points	Years since first registration — older = more trust
Domain Length	15 points	Shorter domains score higher (3-char = max)
Wayback Captures	15 points	Number of Internet Archive snapshots
Name Score	5 points	Brandability, pronounceability, and memorability

Domains scoring 80+ are considered excellent. 60-79 is good. 40-59 is average. Below 40 is low quality.

TLD Registration Prices

TLD	Price
.com, .net, .org	$12
.io	$35
.ai	$80
.fm	$100
.tv	$35
.app, .dev	$15
.co	$30
.me	$10
.xyz	$3

Data Sources

Domain Cub discovers domains from 280+ authoritative sources including Forbes, TechCrunch, Product Hunt, Hacker News, Crunchbase, Wikipedia, Wayback Machine, GitHub, Reddit, Bandcamp, Hype Machine, SubmitHub, Last.fm, ExpiredDomains.net, GoDaddy Auctions, and many more. Sources are scraped automatically on a continuous schedule throughout the day.

Why Expired Domains Are Valuable

Expired domains retain their backlink profiles, domain authority, and search engine trust even after expiration. A domain with 50+ referring domains and a Domain Authority of 30+ can provide immediate SEO value that would take 2-3 years to build from scratch. Common uses include launching new websites with instant authority, 301 redirects to boost existing site rankings, and domain investing for resale.

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Frequently Asked Questions

What is an expired domain?: A domain name whose registration was not renewed by its owner, making it available for anyone to register. Expired domains often retain their backlink profiles and domain authority.
How much do expired domains cost?: Available domains can be registered at standard TLD prices: .com from $12, .io from $35, .ai from $80, .xyz from $3. Auction domains have variable pricing.
How does Quality Score work?: Quality Score is a 0-100 composite metric combining Referring Domains (25pts), Domain Authority (25pts), Domain Age (15pts), Domain Length (15pts), Wayback Captures (15pts), and Name Score (5pts).
How often is data updated?: Domain Cub runs automated scans continuously throughout the day, re-verifying domain availability and refreshing quality metrics on an ongoing basis.

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