cfext.epa.gov - robtex.com
cfext.epa.gov
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2620:117:506f:15::f011🇺🇸 AS142982620:117:5000::/36 Environmental Protection Agency | ||||||
| PTR | cfext.epa.gov | ||||||
| A | 134.67.21.17🇺🇸 AS14298134.67.0.0/16 109 T.W. Alexander Dr. Durham NC 27711 United States | ||||||
epa.gov
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2620:117:506f:15::f022🇺🇸 AS142982620:117:5000::/36 Environmental Protection Agency | ||||||
| A | 134.67.21.34🇺🇸 AS14298134.67.0.0/16 109 T.W. Alexander Dr. Durham NC 27711 United States | ||||||
| NS | rtpgm.ddi.epa.gov ⭐ | ||||||
| NS | dcns1.epa.gov | ||||||
| NS | dcns2.epa.gov | ||||||
| NS | nccns1.epa.gov | ||||||
| NS | nccns2.epa.gov | ||||||
| MX | usepa.mail.protection.outlook.com ⭐ | ||||||
| TXT | mongodb-site-verification=BlMuSDOkvL0UWUVteO3W2lcTbjGdtzq7 | ||||||
| TXT | {adobe-idp-site-verification=6c7001ef-8126-4fbc-8ecb-8fae83ee039b} | ||||||
| TXT | adobe-idp-site-verification=6c7001ef-8126-4fbc-8fae83ee039b | ||||||
| TXT | iContact1869815 | ||||||
| TXT | v=spf1 include:spf.protection.outlook.com include:%{i}._ip.%{h}._ehlo.%{d}._s... | ||||||
| TXT | adobe-sign-verification=24513cfcab0903ecf5de3fd467be1d7412df57793960e76577f9b... | ||||||
| TXT | MS=ms7622314 | ||||||
| TXT | google-site-verification=fUmsNQhzYYZmxo4WqfmBkmwUMlk1H9ns-cGuXfwx9IM | ||||||
| SOA | rtpgm.ddi.epa.govdnsadmin@epa.gov serial=2021557673 | ||||||
rank #278 globally
rank #9 in the tld
This domain name represents the official website of the United States Environmental Protection Agency. The site provides information about the agency's efforts to protect human health and the environment. It also offers resources on a variety of environmental topics such as air, water, land, waste, toxins, radiation, and environmental education.🔒 HSTS Preload (+subdomains)
WOT: SAFE (95/100)
📈 Tranco rank: #934
U.S. Environmental Protection Agency
The Environmental Protection Agency (EPA) is the primary federal agency of the United States government responsible for environmental protection and public health. Established in 1970, the EPA's mission is to safeguard human health and the environment by ensuring clean air, land, and water for all Americans.
Key Responsibilities
- Air Quality - Regulating emissions and monitoring air pollution standards
- Water Protection - Ensuring safe drinking water and protecting water bodies
- Land & Waste Management - Overseeing hazardous waste cleanup and remediation
- Chemical Safety - Regulating pesticides and toxic substances
- Emergency Response - Coordinating environmental disaster responses
- Research - Conducting scientific studies to inform environmental policy
Technical Infrastructure
The EPA operates its own autonomous network under AS14298 and maintains DNS infrastructure across multiple data centers:
- Nameservers: dcns1/dcns2.epa.gov (161.80.212.x) and nccns1/nccns2.epa.gov (134.67.12.x)
- Web Hosting: 134.67.21.34 / 2620:117:506f:15::f022 (IPv6)
- Mail: Microsoft 365 (usepa.mail.protection.outlook.com)
- DNSSEC: Not signed (parent .gov zone is signed)
The agency uses government-owned IP space (134.67.0.0/16 and 161.80.0.0/16) with full IPv6 deployment across all services.
PTR for
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DNS History
3 records (2 active, 1 former)
●A134.67.21.172015-05-30 → 2026-03-28 · 2 obs
● 2026-03-28 06:59:32
○A2620:0:b12:51:134:67:21:172015-10-21 → 2016-11-18 · 5 obs
● 2015-10-21 23:37:12
● 2016-11-18 21:36:22
○ 2026-03-25 04:15:44
○ 2026-03-28 06:59:32
●A2620:117:506f:15::f0112026-03-25 → 2026-03-28 · 3 obs
● 2026-03-25 04:15:44
● 2026-03-28 06:59:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| gov | d.ns.gov, b.ns.gov, a.ns.gov, c.ns.gov | - |
| epa.gov | dcns1.epa.gov, dcns2.epa.gov, nccns1.epa.gov, nccns2.epa.gov | 8 records |
✅ Authoritative Response
Server:161.80.212.15
NS records: dcns1.epa.gov, dcns2.epa.gov, nccns1.epa.gov, nccns2.epa.gov
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 100ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 134.67.21.17 |
| AAAA | 1 | 2620:117:506f:15::f011 |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (dcns1.epa.gov, dcns1.epa.gov, dcns2.epa.gov...)
Analysis
IP Addresses
cfext.epa.gov resolves to two IP numbers: 2620:117:506f:15::f011 and 134.67.21.17.