HTTPfy

InCommon, LLC certificates on popular websites

InCommon, LLC issued 21 of the 8,208 certificates we observed on popular sites in November 2026.

0.3%of observed certificates21 of 8,208

199 daysmedian validity period

9.5%expiring within 30 daysat scan time

81.0%validated for the host name

Validity period

Days between notBefore and notAfter of the leaf certificate.

up to 100 days 0.0%

101 to 200 days 100.0%

201 to 398 days 0.0%

over 398 days 0.0%

TLS versions negotiated

On sites using InCommon, LLC (accent) and all sites (grey).

TLSv1.3 52.4%

all sites 84.9%

TLSv1.2 47.6%

all sites 15.1%

About InCommon, LLC

Issuer organisation names seen in these certificates: InCommon, LLC (21).

14.3% of the domains using InCommon, LLC publish a CAA record (all sites: 20.7%). A CAA record names the CAs allowed to issue for the domain; any other CA must refuse.

Popular sites with a InCommon, LLC certificate

cornell.eduprinceton.eduwashington.eduumn.eduuchicago.edunyu.edurutgers.eduutah.educaltech.eduiastate.eduumass.edugwu.edu

Check one yourself:

Check SSL certificate Look up CAA records HTTP headers

Source: our own scan of November 2026 (2026-11-11), 9,971 of the top 10,000 domains of the Tranco list Y895G that answered in DNS. Method and data.