All California Sites List
BuiltWith intelligence confirms 21K+ live sites running California. This database gives you direct owner contact access. 43% US-based. 89% verified.
California Sites by Region
Site Traffic Tiers
| Monthly Traffic | % of Sites |
|---|---|
| High Traffic (>100K/mo) | 18% |
| Medium Traffic (10K–100K/mo) | 40% |
| Low/New (<10K/mo) | 42% |
What Is the All California Sites List?
The All California Sites List is a database of 20,728+ websites confirmed to be actively using California. Compiled using BuiltWith technology intelligence, it provides direct access to website owners and administrators who are already users of the California platform.
Unlike broad contact databases, this list is qualified by technology signal — making it uniquely relevant for companies selling complementary products, apps, themes, or services to California users.
43% of listed sites are US-based. Email accuracy is 89%+, last verified Q3 2026.
What's Included
| Field | Status |
|---|---|
| Website URL | ✓ Verified |
| Owner/Admin Email | ✓ Included |
| Business Name | Where Available |
| Contact Name | Where Available |
| Country | ✓ Included |
| Traffic Tier | ✓ Estimated |
| Technology Confirmed | ✓ California |
Who Uses This Database
Plugin & App Developers
Sell California plugins, apps, and extensions to 21K+ active California site owners directly.
Theme & Design Vendors
Reach California website owners for theme sales, design services, and visual optimisation tools.
SaaS & Software
Sell complementary SaaS tools — analytics, marketing, CRM, automation — to California users.
Agency Services
Offer SEO, PPC, and digital marketing services to 21K+ California site owners needing help.
Cold Email Outreach
Launch targeted outreach to California website owners — a highly specific, technology-qualified audience.
Competitive Intelligence
Identify businesses using competing or complementary technologies and reach them with targeted messaging.
Tools & Guides for California Outreach
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Download the All California Sites List — 20,728+ verified websites using California with owner contact data.