HTTPfy

Internet2 certificates on popular websites

Internet2 issued 38 of the 8,208 certificates we observed on popular sites in November 2026.

0.5%of observed certificates38 of 8,208

366 daysmedian validity period

5.3%expiring within 30 daysat scan time

100.0%validated for the host name

Validity period

Days between notBefore and notAfter of the leaf certificate.

up to 100 days 2.6%

101 to 200 days 42.1%

201 to 398 days 55.3%

over 398 days 0.0%

TLS versions negotiated

On sites using Internet2 (accent) and all sites (grey).

TLSv1.3 63.2%

all sites 84.9%

TLSv1.2 36.8%

all sites 15.1%

About Internet2

Issuer organisation names seen in these certificates: Internet2 (38).

21.1% of the domains using Internet2 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 Internet2 certificate

stanford.eduucsd.educmu.edujhu.eduufl.edupurdue.eduuiuc.eduillinois.edunorthwestern.edupitt.eduvt.eduhawaii.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.