What are some alternatives?
When comparing Data Miner and XML-Sitemaps.com, you can also consider the following products
import.io - Import. io helps its users find the internet data they need, organize and store it, and transform it into a format that provides them with the context they need.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
Apify - Apify is a web scraping and automation platform that can turn any website into an API.
WonderWebWare Sitemap Generator - Sitemap Generator is freeware program that will help you to automatically generate site maps for google, bing and yahoo in their respective file formats.
Scrapy Cloud - A cloud-based web crawling platform, allows you to easily deploy crawlers and scale them on demand.
GlooMaps - Create your visual sitemap on the go - easy peasy