Domain · Tranco #30,403

openacs.org

openacs.org is ranked #30,403 among the world's most-visited sites (Tranco). It resolves to 137.208.116.31, hosted on smtp.openacs.org, and presents a TLS certificate issued by Let's Encrypt.

HTTP 200
Tranco rank#30,403
IPv4137.208.116.31
Hosting / reverse DNSsmtp.openacs.org
Hosting networkAS1776 · UNSPECIFIED - WU (Wirtschaftsuniversitaet Wien) - Vienna University of Economics and Business, AT
Nameserversns1.wu-wien.ac.at, ns2.wu-wien.ac.at
Mail servers (MX)smtp.openacs.org (10)
HTTP status200
Web serverNaviServer/5.1.0
Page titleOpenACS Home
Detected techNaviServer/5.1.0
TLS certificateLet's Encrypt · expires 2026-09-19

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FAQ

What is the IP address of openacs.org?

openacs.org resolves to 137.208.116.31 (smtp.openacs.org).

Who issued the SSL certificate for openacs.org?

The TLS/SSL certificate for openacs.org was issued by Let's Encrypt, valid until 2026-09-19.

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