Summary

Underpass App Company, founded in 2016 by Jeff Johnson, gained recognition for resolving the “Mac OCSP appocalypse.” Johnson’s prior experience includes roles as a software engineer at Rogue Amoeba Software and contributing to the Vienna open-source RSS reader.

Title

Underpass App Company

Description

Underpass App Company by Jeff Johnson

Keywords

company, open, safari, underpass, johnson, software, source, stop, mastodon, urls, sole, proprietorship, minutes, fame, solving, starting, engineer

NS Lookup

A 74.114.88.152

Dates

Created 2026-03-09

Updated 2026-03-09

Summarized 2026-03-12