Transparent pixel was also employed in some commercial software circa early-to-mid 1990s. It was used for web analytics, causing browsers to do an HTTP "get" to a central site that collated the statistics. I cannot say whose software lest I dox.
Transparent pixel was also employed in some commercial software circa early-to-mid 1990s. It was used for web analytics, causing browsers to do an HTTP "get" to a central site that collated the statistics. I cannot say whose software lest I dox.