.ca.us domains list

Download structured datasets with verified DNS, RDAP & WHOIS, and technology fields for all .ca.us domains.
Access a complete list of .ca.us domains with active DNS records, WHOIS data, IPs, and detected technologies — all verified and updated daily.

Analytics overview of .ca.us domains in webatla

Access precise and up-to-date information on active domains and websites with the .ca.us TLD from the comprehensive webatla database.

New domain registrations

0 last week
0 last month

Active domains

547 active domains

DNS

457 domains with DNS records

Countries

Domains from 3 countries

RDAP and WHOIS

547 domains with RDAP and WHOIS records

IP addresses

Includes 32 unique IPs hosting active domains

Average Harmonic Value: 10,385,175.85

A metric that estimates network influence and trust, based on the link structure of domains using .ca.us TLD

Average PR Value: 0.00000003269

The average PageRank score reflecting the SEO authority of websites with the .ca.us TLD

Database preview of .ca.us domains

Preview the top .ca.us domains
Last updated: 2026-04-15
TLD Domain TLD suffix Country IP address Technologies PR value Harmonic value Detected hosts count DNS last data checked DNS Status DNS records RDAP/WHOIS last data checked RDAP/WHOIS method Domain creation date Domain expiration date Domain last changed Registrar RDAP/WHOIS Record
us roseville.ca.us ca.us United States (US) 162.159.135.49 0.00000033653 15,210,264.00 2026/04/06 1 {"A": ["162.159.135.49", "162.159.136... 2026/04/14 WHOIS 2003/02/05 2027/02/04 2026/02/10 US Locality Zone Manager {"raw_response": ...
us coronado.ca.us ca.us United States (US) 188.114.96.3 ["Cloudflare"] 0.00000013693 14,922,842.00 2026/04/11 1 {"A": ["188.114.96.3", "188.114.97.3"... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us mendocino.ca.us ca.us United States (US) 208.201.240.2 0.00000012571 14,946,402.00 2026/04/07 1 {"A": ["208.201.240.2"], "MX": [{"hos... 2025/12/24 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us fresno.ca.us ca.us United States (US) 198.200.238.231 0.00000012318 15,073,330.00 2026/04/10 1 {"A": ["198.200.238.231"], "MX": [{"h... 2026/01/07 WHOIS 2003/02/06 2026/02/05 2025/06/24 US Locality Zone Manager {"raw_response": ...
us carson.ca.us ca.us Canada (CA) 149.137.245.166 ["Google Analytics"] 0.00000011767 14,965,924.00 2026/04/14 1 {"A": ["149.137.245.166"], "MX": [{"h... 2026/04/13 WHOIS 2003/02/05 2027/02/04 2026/02/10 US Locality Zone Manager {"raw_response": ...
us alameda.ca.us ca.us United States (US) 63.206.44.251 ["Google Analytics"] 0.00000009054 17,512,888.00 2026/04/09 1 {"A": ["63.206.44.251"], "MX": [{"hos... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us delmar.ca.us ca.us United States (US) 208.90.189.65 0.00000007356 14,760,804.00 2026/04/10 1 {"A": ["208.90.189.65"], "MX": [{"hos... 2026/04/14 WHOIS 2003/02/05 2027/02/04 2026/02/10 US Locality Zone Manager {"raw_response": ...
us moraga.ca.us ca.us United States (US) 207.38.76.9 0.00000006534 17,515,842.00 2026/04/06 1 {"A": ["207.38.76.9"], "MX": [{"host"... 2026/04/14 WHOIS 2003/02/05 2027/02/04 2026/02/10 US Locality Zone Manager {"raw_response": ...
us pittsburg.ca.us ca.us United States (US) 63.206.44.251 ["Google Analytics"] 0.00000005735 17,537,566.00 2026/04/14 1 {"A": ["63.206.44.251"], "MX": [{"hos... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us banning.ca.us ca.us United States (US) 208.90.188.201 0.00000005660 14,960,030.00 2026/04/12 1 {"A": ["208.90.188.201"], "NS": ["dns... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us chico.ca.us ca.us United States (US) 54.69.85.177 ["Google Tag Manager", "ASP.NET", "Mi... 0.00000005134 14,796,787.00 2026/04/09 1 {"A": ["54.69.85.177"], "SOA": {"mnam... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us claremont.ca.us ca.us United States (US) 134.173.254.23 0.00000004856 14,764,905.00 2026/04/06 1 {"A": ["134.173.254.23"], "NS": ["NS.... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us morro-bay.ca.us ca.us United States (US) 208.90.188.209 ["Google Analytics"] 0.00000003993 14,927,245.00 2026/04/06 1 {"A": ["208.90.188.209"], "MX": [{"ho... 2026/04/14 WHOIS 2003/01/30 2027/01/29 2026/02/04 US Locality Zone Manager {"raw_response": ...
us yosemite.ca.us ca.us United States (US) 74.208.247.59 ["Apache HTTP Server", "PHP"] 0.00000003623 14,790,067.00 2026/04/07 1 {"A": ["74.208.247.59"], "NS": ["ns1.... 2026/04/14 WHOIS 2003/02/05 2027/02/04 2026/02/10 US Locality Zone Manager {"raw_response": ...
us agoura-hills.ca.us ca.us United States (US) 135.84.124.102 ["Google Analytics"] 0.00000003559 14,745,333.00 2026/04/12 1 {"A": ["135.84.124.102"], "MX": [{"ho... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us sebastopol.ca.us ca.us United States (US) 208.201.224.11 ["Google Analytics"] 0.00000003535 14,764,278.00 2026/04/10 1 {"A": ["208.201.224.11"], "NS": ["a.a... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us half-moon-bay.ca.us ca.us United States (US) 192.196.0.236 ["Google Analytics"] 0.00000003045 14,761,793.00 2026/04/06 1 {"A": ["192.196.0.236"], "NS": ["ns1.... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us vacaville.ca.us ca.us United States (US) 209.76.206.19 ["Google Analytics"] 0.00000002904 14,751,911.00 2026/04/11 1 {"A": ["209.76.206.19"]} 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us moreno-valley.ca.us ca.us United States (US) 216.36.237.42 ["Google Tag Manager", "Apache HTTP S... 0.00000002609 14,753,129.00 2026/04/09 1 {"A": ["216.36.237.42"], "NS": ["a.dn... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us gridley.ca.us ca.us Netherlands (NL) 89.106.200.153 ["Apache HTTP Server", "Google Analyt... 0.00000002061 14,627,183.00 2026/04/11 1 {"A": ["89.106.200.153"], "SOA": {"mn... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us lindsay.ca.us ca.us United States (US) 162.221.183.17 ["Google Analytics"] 0.00000001969 14,631,275.00 2026/04/07 1 {"A": ["162.221.183.17"], "MX": [{"ho... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us marysville.ca.us ca.us United States (US) 23.236.62.147 ["Wix"] 0.00000001724 14,741,617.00 2026/04/06 1 {"A": ["23.236.62.147"], "MX": [{"hos... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us parlier.ca.us ca.us United States (US) 208.90.189.51 ["Google Analytics"] 0.00000001026 14,620,831.00 2026/04/13 1 {"A": ["208.90.189.51"], "MX": [{"hos... 2025/12/24 WHOIS 2003/01/30 2026/01/29 2025/06/24 US Locality Zone Manager {"raw_response": ...
us springville.ca.us ca.us United States (US) 34.226.77.200 ["Google Tag Manager", "Amazon CloudF... 0.00000000596 12,955,846.00 2026/04/12 1 {"A": ["34.226.77.200"], "MX": [{"hos... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...
us mojave.ca.us ca.us United States (US) 74.208.236.59 ["Apache HTTP Server"] 0.00000000538 14,721,750.00 2026/04/08 1 {"A": ["74.208.236.59"], "MX": [{"hos... 2026/01/06 WHOIS 2003/02/05 2026/02/04 2025/06/24 US Locality Zone Manager {"raw_response": ...

Download full list of .ca.us domains with tech detailed information

The largest database of live domains and detailed information about them, designed to boost your digital strategies.

.ca.us domains share by technologies

Technology Count Domain Percentage of Technology
Google Analytics 50 73.53
Apache HTTP Server 5 7.35
Google Tag Manager 3 4.41
Microsoft IIS 2 2.94
PHP 2 2.94
Amazon CloudFront 1 1.47
ASP.NET 1 1.47
Cloudflare 1 1.47
Google reCAPTCHA 1 1.47
Wix 1 1.47
Zend Framework 1 1.47

.ca.us domains share by countries

Country Count Domain Percentage of Country
474 86.65
United States (US) 71 12.98
Canada (CA) 1 0.18
Netherlands (NL) 1 0.18

What is .ca.us TLD

The .ca.us TLD is the California geographic second‑level within the United States’ .us country code, primarily reserved for public-sector entities and educational institutions. In practice, .ca.us domains identify municipal, county, and K‑12 bodies, while .ca.us websites typically host official services, notices, and records. From our global index, we currently observe active .ca.us domains, with live .ca.us websites and showing DNS configurations. Usage is localized to country, reflecting the namespace’s state‑specific purpose. This concentrated footprint enables precise regional analysis of California’s public digital infrastructure. We continuously standardize ownership signals, name patterns, and resolving status to maintain comparability across civic namespaces. Download the .ca.us domain datasets from webatla.

History and key features of .ca.us TLD

As a legacy locality subtree of .us, .ca.us emerged early in the commercial internet to provide structured, government‑aligned naming for California jurisdictions. Policies generally prioritize public agencies and schools, so .ca.us domains often follow locality conventions and are administered with stricter eligibility than generic namespaces. Operationally, we see assets with DNS, while only resolve as live .ca.us websites – around 17% of the observed base. Growth is currently subdued: new registrations last week and in our month‑over‑month view. These characteristics suggest stable, low‑churn inventories typical of public sector portfolios. Download historical .ca.us domain datasets from webatla.

Why and who choose the .ca.us domain

Organizations choose .ca.us to signal governmental authority, geographic remit, and compliance with U.S. public‑sector conventions. Typical registrants include cities, counties, school districts, libraries, and special districts, where clarity of jurisdiction matters. For discovery and benchmarking, we surface ownership fingerprints, hosting shifts, and redirects across .ca.us domains and comparable civic namespaces. Today we track assets in scope, with operational .ca.us websites and usage confined to country, illustrating a focused, California‑specific ecosystem. Procurement teams and researchers can use these signals to map services, monitor consolidation, and audit digital continuity across agencies. Download comprehensive .ca.us domain datasets from webatla.

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