So

Solr

Databaseshttps://lucene.apache.org/solr/
Build report API
OverviewSitesHistoryCo-occurrenceGeographic

Used alongside Solr

Technologies most often detected together with Solr across our crawl sample.

Ja
Java
Programming languages
412Lu
Lucene
Databases
412Py
Python
Programming languages
412Ck
Ckan
CMS
412Po
PostgreSQL
Databases
412Bo
Bootstrap
UI frameworks
410Jq
jQuery
JavaScript libraries
408Ng
Nginx
Web servers
223