Yuk, this is terrible. Please use the source of this data:
https://nodejs.org/download/release/index.json or
https://nodejs.org/download/release/index.tab, same URL works if you replace "nodejs" with "iojs" if you want to include the io.js versions as well. Use
https://github.com/rvagg/node-version-data to grab it all programmatically if you have use for it.