Link Sphinx - the best free backlink checker

Link Sphinx solves a vast scope of SEO tasks!

You will receive complete information about backlinks to your websites or sites of your competitors and can bring positions of your pages in SERP higher.

Why using Link Sphinx?

  • - Explore your backlinks
  • - Analyze your competitors' backlinks
  • - Get your backlinks indexed by search engines
  • - Improve your SERP positions
  • - Save time by solving CAPTCHAs automatically
  • - Save money: the software is 100% free!
DownloadHow it works

What can it be used for?

You can use Link Sphinx to solve such everyday SEO tasks as:

  • - Searching and checking backlinks to any sites
  • - Analyze link-building strategy of your competitors
  • - Check reciprocal links
  • - Obtain PageRank of donor pages and domains
  • - Check if backlinks are indexed
  • - Submit backlinks for indexing
DownloadHow it works

Pay your attention!

Link Sphinx key features:

  • Fetches backlinks from 15+ backlink providers
  • Optimizes backlink list by 6 parameters
  • Checks backlinks indexation without proxy list
  • Integrated with 5 indexing services
  • Supports 7 cheap CAPTCHA solving services
  • Multi-threaded backlink checking
See all featuresDownloadHow it works

Backlink analyzer &
site explorer software

Desktop-based SEO tool

  • - Ideal for webmasters and SEO experts
  • - Powerful, easy to use, easy to install
  • - Works on Windows (x32, x64) XP/Vista/7/8
  • - Absolutely free!
DownloadHow it worksMore screenshots

Get Link Sphinx now!

To see our backlink checker software in action just download Link Sphinx and install it on your computer. It's free!

Your feedback is important to us. If you have any questions or suggestions, please do not hesitate to contact us.


The best free
Backlink checker SEO tool

Link Sphinx is a completely free backlink checker. Link Sphinx helps you find webpages that link to your sites or your competitors’ sites, analyze the quality of the backlinks, and index the donor pages to improve your rank in SERP.

Link Sphinx - backlink analyzer & site explorer

Site explorer

Link Sphinx is the only free program to check backlinks capable of extracting backlink information from various online sources in addition to checking existence and quality of backlinks.
This means you can use the program both for classic backlink checking and for investigating your competitors’ link-building strategy.

Index checker

Another unique feature of the program is the ability to check if donor pages are in Google index. Importantly, this function doesn’t require using multiple proxies to work properly.

Link Sphinx can solve CAPTCHAs automatically

Normally, you would use a proxy list while massively checking the index, because Google protects himself from large amount of queries following from the same IP address within short time.

Link Sphinx correctly processes Google protection solving a shown CAPTCHA instead of using a proxy list as a workaround. A CAPTCHA can be solved by hand or automatically using one of the specialized online-services supported by the program.

Be indexed!

Link Sphinx integrates with several backlink indexing services allowing speeding up donor page indexing and therefore to significantly improve search engine positions of your websites.


Link Sphinx works under Windows (x32 & x64) XP/Vista/7/8. The program requires established Internet connection. Additionally, if a firewall is installed on your computer, Link Sphinx must be permitted to create inbound and outbound connections in that firewall.