BacklinkChecker

Open repository of web crawl data that can be used for large-scale link graph analysis

Open-source Python library for extracting and monitoring backlinks from raw HTML and web crawls

Command-line tool to check backlink status and anchor text from a list of URLs

Python library to check if a backlink exists on a specific page programmatically

Free backlink checker that provides a massive database of links for any domain analysis

Classic free web service for checking all outbound links and incoming backlinks for a URL