Leader.ir under attack?

The website of the Supreme Leader of Iran, Sayyid Ali Khamenei, has been responding very slowly or not at all for most of the day, which is often symptomatic of a distributed denial of service (DDoS) attack. However, with nobody claiming responsibility for such an attack – which is rather unusual lately – there could well be a less nefarious reason for the problems.

Earlier this year, the 'hacktivist' group Anonymous orchestrated a DDoS attack against leader.ir in support of Operation Iran, which accused Iran of operating an illegal regime for the past 32 years. This attack was not successful, but a separate attack against the Islamic Republic of Iran Broadcaster (irib.ir) did appear to succeed.