The most comprehensive list of query system supports websites last updated on Sep 1 2023. Stats collected from various trackers included with free apps.
PDOCrud - Best PHP CRUD application builder and Form generator for Mysql, Pgsql & Sqlite database. PDOCrud is an advance PHP based CRUD(Create, Read, Update and Delete) application. It supports Mysql, Pgsql and Sqlite database.
RapidDNS is a domain name information query system that supports querying information about websites, subdomains and the same ip website. RapidDNS supports A, AAAA, CNAME, CERTIFICATE and MX types.