Domain Age Database

Legacy Domains (10+ Years)

Explore 18.4 million domains with over a decade of continuous operation. These legacy websites represent established institutions, industry leaders, and trusted brands with unmatched domain authority, backlink profiles, and market credibility.

Download Database

Access 18.4M legacy domains with full authority metrics, founding dates, and historical data

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Authority API

Query high-DA domains by industry, age, and authority tier via real-time API endpoints

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Backlink Research

Identify premium link opportunities from established, high-trust domains

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18.4M
Domains (10+ Years)
58
Avg. Domain Authority
97%
Survival Rate
2.4K
Avg. Referring Domains

The Value of Legacy Domains

Domains with 10+ years of continuous operation have accumulated irreplaceable digital equity. Their authority, trust signals, and backlink profiles make them invaluable for multiple use cases.

Unmatched Authority

A decade of content, links, and search presence builds authority that newer domains simply cannot replicate. Average DA of 58 compared to 12 for domains under 1 year old.

Trust Factor

Search engines and users trust established domains. Legacy sites enjoy higher click-through rates, lower bounce rates, and stronger conversion performance based on perceived credibility.

Backlink Gold

Decade-old sites have earned thousands of backlinks organically. Average of 2,400 referring domains per site represents years of accumulated link equity worth millions in SEO value.

Historical Data

Legacy domains provide deep historical context for competitive research, market analysis, and trend identification. Track how industries, messaging, and strategies evolved over a decade.

Institutional Stability

These businesses have weathered multiple economic cycles, technology shifts, and market changes. Their longevity signals operational excellence and sustainable business models.

Premium Asset Value

Legacy domains command premium prices in the acquisition market. Average sale price for 10+ year domains with DA 50+ is $47,000 compared to $3,200 for newer equivalents.

Domain Age Distribution

Our legacy database spans multiple internet eras, from the dot-com pioneers to the social media age. Each era carries distinct characteristics and value profiles.

1990-1999
1.2M

Dot-Com Pioneers

Original internet businesses, early adopters, tech innovators. Highest authority (avg DA 71), most valuable backlink profiles. Many Fortune 500 origins.

2000-2004
2.8M

Post-Bubble Survivors

Companies that weathered the dot-com crash. Proven resilience, established e-commerce players, early bloggers. Average DA 64.

2005-2009
4.7M

Web 2.0 Builders

Social media emergence, SaaS pioneers, content marketing origins. Built during platform explosion. Average DA 58.

2010-2014
6.4M

Mobile-First Adapters

Businesses that embraced mobile, responsive design pioneers, app-era companies. Strong social signals. Average DA 52.

2015-2016
3.3M

Modern Foundations

Just crossing the 10-year threshold. Cloud-native businesses, modern tech stacks. Growing authority (avg DA 47).

Strategic Applications

Legacy domain data serves high-value applications in SEO, M&A, competitive intelligence, and enterprise sales.

Premium Link Building

Identify high-authority domains for backlink acquisition and PR outreach.

  • Find DA 50+ sites accepting guest posts
  • Discover niche authorities for contextual links
  • Target industry publications and resources
  • Build relationships with established publishers

Domain Acquisition

Find valuable domain assets for portfolio building and brand acquisition.

  • Identify undervalued legacy domains
  • Discover domains approaching expiration
  • Evaluate authority-to-price ratios
  • Find dormant sites with strong backlinks

Competitive Research

Analyze long-standing competitors to understand market evolution and positioning.

  • Track competitor history via Wayback analysis
  • Study messaging evolution over time
  • Identify successful content strategies
  • Understand technology adoption timelines

Enterprise Sales Targeting

Focus on established organizations with proven budgets and stability.

  • Target companies with 10+ year track records
  • Identify industries with established players
  • Find institutional buyers (edu, gov, enterprise)
  • Focus on modernization opportunities

Authority Tiers

Legacy domains cluster in higher authority tiers, with significantly better metrics than younger sites. Our database segments by authority level for precise targeting.

Over 40% of 10+ year domains have DA 50 or higher, compared to just 3% of sites under 3 years old. This concentration of authority makes legacy domains uniquely valuable for link building and brand association.

DA 70+

Elite Authority

Industry leaders, major publications, top institutions

1.8M
DA 60-69

Premium Authority

Established brands, niche leaders, quality publishers

3.2M
DA 50-59

Strong Authority

Respected businesses, regional leaders, quality sites

4.8M
DA 40-49

Solid Authority

Established SMBs, niche sites, growing brands

5.1M
DA <40

Developing Authority

Local businesses, specialized niches, newer content

3.5M

Institutional Categories

Legacy domains include various institutional types, each with distinct characteristics and opportunities.

Fortune 500

12.4K

Enterprise corporations with global presence

Educational (.edu)

847K

Universities, colleges, research institutions

Government (.gov)

423K

Federal, state, local government entities

Media & Publishing

1.2M

News outlets, magazines, content publishers

Healthcare

2.1M

Hospitals, clinics, health organizations

Financial Services

1.8M

Banks, insurance, investment firms

Non-Profit (.org)

3.4M

Charities, foundations, NGOs

Established SMBs

8.7M

Long-standing small and medium businesses

Industry Distribution

Legacy domains span all industries, with notable concentrations in sectors that established early internet presence.

Retail & E-commerce

3.2M
Avg. 14.2 years

Technology

2.8M
Avg. 15.7 years

Professional Services

2.4M
Avg. 13.4 years

Healthcare

2.1M
Avg. 12.8 years

Financial Services

1.8M
Avg. 16.1 years

Education

1.6M
Avg. 17.3 years

Manufacturing

1.4M
Avg. 14.8 years

Real Estate

1.2M
Avg. 13.1 years

Available Data Points

Each legacy domain record includes comprehensive historical, authority, and institutional data.

Historical Data

  • Original registration date
  • Exact age (days/years)
  • Ownership history
  • Wayback snapshots count
  • Era classification
  • Expiration date

Authority Metrics

  • Domain Authority (DA)
  • Page Authority (PA)
  • Referring domains
  • Total backlinks
  • Trust Flow / Citation Flow
  • Spam score

Institutional Data

  • Organization type
  • Industry classification
  • Company size estimate
  • Revenue bracket
  • Geographic presence
  • Technology stack

Access 18.4M Legacy Domains

Tap into decades of accumulated domain authority. Find premium link opportunities, acquisition targets, and enterprise accounts with our comprehensive legacy database.

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Frequently Asked Questions

We cross-reference multiple authoritative sources: WHOIS creation dates, historical DNS records, Internet Archive first-seen dates, and SSL certificate history. For domains that have changed ownership, we track the original registration date while flagging ownership transitions. Our verification process achieves 99.2% accuracy for domain age claims.

Yes. We flag domains that have undergone significant changes in purpose or ownership. This includes former business sites now used for different purposes, parked domains, and domains acquired for their authority value. Each record includes a "continuity score" indicating whether the domain has maintained consistent use throughout its history.

Our data shows strong correlation: 10+ year domains average DA 58 compared to DA 12 for domains under 1 year. However, age alone doesn't guarantee authority. Continuous content production, quality backlink accumulation, and maintained relevance matter. We provide both metrics so you can filter for high-age AND high-authority combinations.

Yes. Our database includes expiration dates for all domains. You can filter for high-authority legacy domains expiring within specific timeframes, enabling you to monitor valuable domains that may become available. We also track renewal patterns to identify domains that historically renew late or have lapsed previously.