Domain · Tranco #22,697

nsf.org

nsf.org is ranked #22,697 among the world's most-visited sites (Tranco). It resolves to 52.191.90.193, and presents a TLS certificate issued by Let's Encrypt.

HTTP 308

Tranco rank	#22,697
IPv4	52.191.90.193
Hosting network	AS8075 · MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US
Nameservers	ns-1155.awsdns-16.org, ns-1781.awsdns-30.co.uk, ns-263.awsdns-32.com, ns-950.awsdns-54.net
Mail servers (MX)	nsf-org.mail.protection.outlook.com (5)
HTTP status	308 → https://www.nsf.org
TLS certificate	Let's Encrypt · expires 2026-09-26

Notable DNS TXT records

canva-site-verification=NOFRCUS081NF0TlEGmXJcQ
cisco-ci-domain-verification=11353b68900088e20a40badc25ab4f09eb3096f50544b14bcbe7bd444bf52595
google-site-verification=TkWGAQS0X798tQMnGqXYi-eqzbbLHecBkxF2XVbDMEw
prowly-verification=163a4d39e4a1f88aabf636d968ad0d3efc064f6cf3d770b28d0acfb99783c6f7
google-site-verification=mKykxWjJVpocG5TrdNzbvefPeIaLsQ0rmVZydgCBrcA
v=spf1 include:spf.nsf.org include:_spf.google.com include:spf.protection.outlook.com include:cust-spf.exacttarget.com include:amazonses.com include:app.sgizmo.com -all

More .org domains

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FAQ

What is the IP address of nsf.org?

nsf.org resolves to 52.191.90.193.

Who issued the SSL certificate for nsf.org?

The TLS/SSL certificate for nsf.org was issued by Let's Encrypt, valid until 2026-09-26.

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DNS/HTTP/TLS observed 2026-08-06; registration data via RDAP. Informational only. Download JSON · CSV · Browse domains