Domain · Tranco #4,605
nsf.gov
nsf.gov is ranked #4,605 among the world's most-visited sites (Tranco). It resolves to 128.150.221.244, hosted on www-legacy-f5.nsf.gov, and presents a TLS certificate issued by DigiCert Inc.
HTTP 301| Tranco rank | #4,605 |
|---|---|
| IPv4 | 128.150.221.244 |
| IPv6 | 2620:10f:6002:221::244 |
| Hosting / reverse DNS | www-legacy-f5.nsf.gov |
| Nameservers | ns1.nsf.gov, ns2.nsf.gov, ns3.nsf.gov |
| Mail servers (MX) | primary.us.etp.fireeyegov.com (10), alt1.us.etp.fireeyegov.com (20), alt2.us.etp.fireeyegov.com (30) |
| HTTP status | 301 → https://www.nsf.gov/ |
| Web server | BigIP |
| Detected tech | BigIP |
| TLS certificate | DigiCert Inc · expires 2027-01-19 |
Notable DNS TXT records
<metaname="zoom-domain-verification"content="ZOOM_verify_b3xjZjUUQx-tJoqy4aCUyg">have-i-been-pwned-verification=4f69051491297bd79446011a4ad80df8
More .gov domains
FAQ
What is the IP address of nsf.gov?
nsf.gov resolves to 128.150.221.244 (www-legacy-f5.nsf.gov).
Who issued the SSL certificate for nsf.gov?
The TLS/SSL certificate for nsf.gov was issued by DigiCert Inc, valid until 2027-01-19.
Own a business online?
Mewayz gives your business a website, bookings, POS, payroll and CRM in one platform — no card required.
Start free on Mewayz →DNS/HTTP/TLS observed 2026-08-06; registration data via RDAP. Informational only. Download JSON · CSV · Browse domains