Following a tweet from the spokesperson of the Ministry of Foreign Affairs noting the change in the domain of the Ministry of Foreign Affairs (from http://www.mea.gov.lk to http://www.mfa.gov.lk), did the first archive of the site.
Access it here.
Download second copy of archive, taken on 15 February 2017, here.
A brand new avatar of the MFA site was launched on 23 April 2018. Download the archive of this new version of the site here. Download archive of Sinhala and Tamil versions of this site, taken 3 June 2018, here.
Download complete site archive taken 3 November 2018 here (~9Gb). This archive was taken after the extraordinary developments on 26 October 2018 and the contra-constitutional appointment of a new Foreign Minister and Foreign Secretary.