0 last week
0 last month
169 active domains
109 domains with DNS records
Domains from 2 countries
169 domains with RDAP and WHOIS records
Includes 56 unique IPs hosting active domains
A metric that estimates network influence and trust, based on the link structure of domains using .k12.co.us TLD
The average PageRank score reflecting the SEO authority of websites with the .k12.co.us TLD
| 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 | rfsd.k12.co.us | k12.co.us | United States (US) | 15.197.251.173 | ["NGINX"] | 0.00000002272 | 13,318,003.00 | 2026/05/26 | 1 | {"A": ["15.197.251.173"], "MX": [{"ho... | 2026/04/16 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | mesa.k12.co.us | k12.co.us | United States (US) | 162.159.135.49 | ["ASP.NET", "Cloudflare"] | 0.00000001718 | 14,484,173.00 | 2026/05/20 | 1 | {"A": ["162.159.135.49", "162.159.136... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | cortez.k12.co.us | k12.co.us | United States (US) | 107.20.149.85 | ["Google Tag Manager", "NGINX", "Goog... | 0.00000001486 | 13,667,634.00 | 2026/05/29 | 1 | {"A": ["107.20.149.85"], "MX": [{"hos... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | thompson.k12.co.us | k12.co.us | United States (US) | 15.197.148.33 | ["Google Analytics"] | 0.00000001430 | 13,687,346.00 | 2026/05/25 | 1 | {"A": ["15.197.148.33", "3.33.130.190... | 2026/04/13 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | stvrain.k12.co.us | k12.co.us | United States (US) | 104.21.72.40 | ["WordPress", "Google reCAPTCHA", "Cl... | 0.00000001088 | 13,939,536.00 | 2026/05/19 | 1 | {"A": ["104.21.72.40", "172.67.174.20... | 2026/04/16 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | huerfano.k12.co.us | k12.co.us | United States (US) | 15.197.251.173 | ["NGINX"] | 0.00000001023 | 12,983,231.00 | 2026/05/18 | 1 | {"A": ["15.197.251.173", "3.33.229.11... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | wiggins50.k12.co.us | k12.co.us | United States (US) | 35.245.59.22 | ["Apache HTTP Server", "Facebook"] | 0.00000001023 | 13,627,671.00 | 2026/05/22 | 1 | {"A": ["35.245.59.22"], "MX": [{"host... | 2026/04/15 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | peyton.k12.co.us | k12.co.us | United States (US) | 34.238.178.141 | ["NGINX"] | 0.00000000976 | 12,619,276.00 | 2026/05/29 | 1 | {"A": ["34.238.178.141"], "MX": [{"ho... | 2026/04/17 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | cheraw.k12.co.us | k12.co.us | United States (US) | 15.197.251.173 | ["NGINX"] | 0.00000000932 | 12,704,646.00 | 2026/05/22 | 1 | {"A": ["15.197.251.173", "3.33.229.11... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | center.k12.co.us | k12.co.us | United States (US) | 34.238.178.141 | ["NGINX"] | 0.00000000928 | 13,956,252.00 | 2026/05/23 | 1 | {"A": ["34.238.178.141"], "MX": [{"ho... | 2026/04/15 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | monte.k12.co.us | k12.co.us | United States (US) | 216.245.77.44 | ["Microsoft IIS"] | 0.00000000862 | 13,591,666.00 | 2026/05/25 | 1 | {"A": ["216.245.77.44"], "MX": [{"hos... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | alamosa.k12.co.us | k12.co.us | United States (US) | 34.145.199.97 | ["Apache HTTP Server", "Facebook"] | 0.00000000837 | 14,294,636.00 | 2026/05/19 | 1 | {"A": ["34.145.199.97"], "MX": [{"hos... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | sargent.k12.co.us | k12.co.us | United States (US) | 104.198.144.206 | ["WordPress", "NGINX"] | 0.00000000786 | 12,741,806.00 | 2026/05/28 | 1 | {"A": ["104.198.144.206"], "MX": [{"h... | 2026/04/18 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | psdr3.k12.co.us | k12.co.us | United States (US) | 104.17.70.73 | ["Cloudflare"] | 0.00000000751 | 14,293,743.00 | 2026/05/29 | 1 | {"A": ["104.17.70.73", "52.206.191.23... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | southroutt.k12.co.us | k12.co.us | United States (US) | 15.197.251.173 | ["NGINX"] | 0.00000000741 | 12,605,862.00 | 2026/05/28 | 1 | {"A": ["15.197.251.173", "3.33.229.11... | 2026/04/13 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | morgan.k12.co.us | k12.co.us | United States (US) | 104.17.71.73 | ["Google Tag Manager", "Cloudflare"] | 0.00000000715 | 12,921,997.00 | 2026/05/28 | 1 | {"A": ["104.17.71.73"], "MX": [{"host... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | weldre5j.k12.co.us | k12.co.us | United States (US) | 188.114.96.3 | ["Cloudflare"] | 0.00000000695 | 12,740,199.00 | 2026/05/19 | 1 | {"A": ["188.114.96.3", "188.114.97.3"... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | meeker.k12.co.us | k12.co.us | United States (US) | 34.238.178.141 | ["NGINX"] | 0.00000000688 | 12,608,416.00 | 2026/05/19 | 1 | {"A": ["34.238.178.141"], "MX": [{"ho... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | plattevalley.k12.co.us | k12.co.us | United States (US) | 52.33.191.234 | ["NGINX"] | 0.00000000678 | 13,590,417.00 | 2026/05/20 | 1 | {"A": ["52.33.191.234"], "NS": ["ns11... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | ridgway.k12.co.us | k12.co.us | United States (US) | 34.238.178.141 | ["NGINX"] | 0.00000000673 | 12,597,302.00 | 2026/05/22 | 1 | {"A": ["34.238.178.141"], "MX": [{"ho... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | byers32j.k12.co.us | k12.co.us | United States (US) | 34.238.178.141 | ["NGINX"] | 0.00000000631 | 12,606,417.00 | 2026/05/20 | 1 | {"A": ["34.238.178.141"], "NS": ["ns-... | 2026/04/13 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | gilpin.k12.co.us | k12.co.us | United States (US) | 18.233.124.95 | ["NGINX"] | 0.00000000623 | 12,601,245.00 | 2026/05/27 | 1 | {"A": ["18.233.124.95", "54.221.139.1... | 2026/04/18 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | weld-re1.k12.co.us | k12.co.us | United States (US) | 174.129.25.170 | ["NGINX", "Cloudflare"] | 0.00000000577 | 12,599,767.00 | 2026/05/24 | 1 | {"A": ["174.129.25.170"], "MX": [{"ho... | 2026/04/17 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | manzanola.k12.co.us | k12.co.us | United States (US) | 34.238.178.141 | ["NGINX"] | 0.00000000572 | 12,603,629.00 | 2026/05/19 | 1 | {"A": ["34.238.178.141"], "MX": [{"ho... | 2026/04/19 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... | |
| us | merino.k12.co.us | k12.co.us | United States (US) | 172.64.151.177 | ["Cloudflare"] | 0.00000000565 | 12,597,699.00 | 2026/05/24 | 1 | {"A": ["172.64.151.177"], "MX": [{"ho... | 2026/04/13 | WHOIS | 2009/01/27 | 2027/01/26 | 2026/03/13 | US Locality | {"raw_response": ... |
The largest database of live domains and detailed information about them, designed to boost your digital strategies.
| Technology | Count Domain | Percentage of Technology |
|---|---|---|
| NGINX | 21 | 41.18 |
| Cloudflare | 9 | 17.65 |
| Apache HTTP Server | 6 | 11.76 |
| Google Tag Manager | 3 | 5.88 |
| ASP.NET | 2 | 3.92 |
| 2 | 3.92 | |
| Google Analytics | 2 | 3.92 |
| Microsoft IIS | 2 | 3.92 |
| WordPress | 2 | 3.92 |
| New Relic | 1 | 1.96 |
| Google reCAPTCHA | 1 | 1.96 |
| Country | Count Domain | Percentage of Country |
|---|---|---|
| 98 | 57.99 | |
| United States (US) | 68 | 40.24 |
| Canada (CA) | 3 | 1.78 |
The .k12.co.us label is not an independent ICANN TLD; it is a structured locality namespace under .us dedicated to Colorado’s K-12 education sector. In our corpus, .k12.co.us domains and .k12.co.us websites typically represent school districts, charter networks, and regional education services aligned with state and county governance. We currently index active registrations in this namespace, with responding as live websites. This balance suggests a stable, well-established footprint rather than rapid expansion, and it reflects the longevity of district web identities. Our analytics cover host availability, protocol adoption, and subdomain patterns to support policy, research, and cybersecurity baselining. Download the full .k12.co.us domain dataset from webatla.
Historically, .k12.co.us emerged within the usTLD locality structure, where state-level second-level domains (e.g., co.us) host functional third-level labels for public services. The k12.co.us branch is conventionally reserved for pre-university education, yielding consistent naming such as district.k12.co.us. In our observation, .k12.co.us domains maintain restrictive eligibility and administrative oversight aligned with public institutions. Operationally, of the tracked names publish DNS records, and hosting or network endpoints appear across countries. This indicates resolvability and some multi-jurisdiction infrastructure, even when .k12.co.us websites ultimately redirect to newer branding. We document name server diversity, TTL norms, and MX adoption to support resilience assessments. Download structured .k12.co.us domains metadata from webatla.
Organizations that select this namespace are primarily Colorado public school districts, education cooperatives, and state-funded programs seeking geographic specificity and a governmental signal. For these stakeholders, .k12.co.us domains provide continuity with legacy communications and predictable addressing; .k12.co.us websites often serve as authoritative hubs or stable redirects during branding transitions. Recent activity is minimal: new registrations last week and overall, consistent with a mature, low-churn namespace. We recommend this space when regulatory alignment and locality clarity outweigh marketing flexibility, and we surface historical ownership, DNS changes, and web technology stacks to inform governance decisions. Download our .k12.co.us websites and domains dataset now from webatla.
The largest database of live domains and detailed information about them, designed to boost your digital strategies.
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