Backlink analysis tools: Such as Ahrefs , Majestic , or Semrush , which allow you to examine the link profiles of potential expired domains.
Specialized sites: Such as Expireddomains.net , where you can search and filter expired domains by various SEO criteria. For example, at dns.pl or in the cctld, godaddy or tf database, you can find domains for sale that have a good profile.
Exchanges and auction sites:
Expired domains can also be searched for on exchanges or auction chinese overseas europe database sites, such as aftermarket.pl . This is a platform where users can buy and sell domains. These sites allow you to:
Monitoring the domain secondary market.
Bidding on attractive domains that may expire soon, first checking which domain is still in circulation.
Direct purchase of domains at prices set by sellers, depending on domain type.
When searching for valuable expired SEO domains , be sure to also verify through Whois to understand the domain's historical registration data. Within 30 days of expiration, the domain is deleted.