data - Where to get school zone shapefiles?

Census.gov usually makes available the shapefiles containing school zone boundaries. Due to the US government shutdown, census.gov is down. Does anyone know where to download a recently archived copy?

Answer

Code for America has a collection of data backed up from the census.gov websites, including the school zone data.

Another (privately curated?) collection of backups, including the unified school districts, can be found at https://census-backup.s3.amazonaws.com/index.html.