Certainly! Here are a few free backlink indexing tools that you can use:
1. Google Search Console: This is a free tool provided by Google that allows you to monitor and index your website's backlinks. It provides insights into the visibility of your website in Google search results.
2. Bing Webmaster Tools: Similar to Google Search Console, Bing Webmaster Tools enables you to submit your website's sitemap and monitor backlinks for indexing on the Bing search engine.
3. Ping Submission Tools: Ping submission tools like Ping-O-Matic and Pingler can help notify search engines about the existence of new backlinks, prompting them to crawl and index the pages faster.
4. Social Bookmarking Platforms: Platforms like Reddit, Digg, and Mix allow you to submit and share your website's backlinks. These platforms have a high domain authority, which can help in faster indexing.
5. Social Media Platforms: Sharing your website's backlinks on social media platforms, such as Facebook, Twitter, and LinkedIn, can also help in indexing by increasing visibility and attracting user engagement.
Remember, it's important to ensure that your backlinks are from reputable sources and relevant to your website's content. This will increase their chances of getting indexed and positively impacting your website's search engine rankings.