Their news reports, articles, interviews and opinion pieces cover Iran's politics, economy, society, environment and culture, nationally and internationally, and spotlight prominent figures of the large Iranian diaspora across the world.

[4][5] By 1970's Kayhan had become the largest press group in the Middle East, with numerous publications and magazines.

Kayhan London's liberal news reporting is considered anti-government by the Islamic Republic of Iran.

It was available in a weekly paper format until 30 August 2013, when the newspaper ceased publication.

[5] In 2020, Kayhan London, alongside several other newsmedia, was the subject of harassment by the Iranian Islamic government; according to Radio Free Europe, the purpose of the harassment was to "silence the only independent news sources for many Iranians".