WHOIS History API Get the historical WHOIS records of a domain name. Get the WHOIS history of any domain name through the following API: Replace the key " XXXXX " with your own API key, generated through the Members Area . Cost for Single Query = (2 API Credits for 100 Results) Sample Response By default, all results are sent in JSON format. To get results in XML format, simply add " &format=xml " to your query. Cost for Single Query = (Same as with JSON Format) Count Total Results The total count of results for your query will be provided in the following format: Generally the total results count can't be computed accurately without visiting all matches, which is costly for queries that match lots of documents. So, the API will count the total accurately up to 10,000 results. It is a good trade-off to speed up searches if you don't need the accurate number of results after a certain threshold. The " relation " determines how the " total " should be interpreted. A value of " gte " means that there might be more than the " total " results. When the relation has value of " eq ", it indicates that " total " is the exact count. The value of " current " is the total number of results in current page. Change Page Size By default, 100 results are returned per query. To get more results, simply add " &page_size= " to your query.

Cost for Single Query = (Additional 1 API Credit for each 100 Results, Max 10000 Results Allowed) Search Pagination If the total results are greater than current page size, simply add " &search_after= " to get the next page of results. Replace "XXXXXXX_XXXXX" with the value you receive for " search_after " at current page. Change Results Sorting By default, results are sorted by " query_time " in ascending order. You can change the sorting in the following ways: Cost for Single Query = (Same as with Default Sorting, No Extra Charges to Change Sorting) API Pricing and Packages Can be used for Current WHOIS API , Bulk WHOIS API , WHOIS History API , Reverse WHOIS API and Fuzzy Domains API . API Credits you purchase have lifetime validity, and you may use it whenever you wish. We accept Visa, Mastercard, American Express, Discover, Diners Club, JCB and China UnionPay. Popular payment wallets like Apple Pay, Google Pay, Alipay, WeChat Pay & Cash App Pay are accepted. You can also pay in installments through Buy Now, Pay Later (Affirm, Afterpay, Clearpay, Klarna) services. For orders worth $1000 and higher, you can also pay through Bank Wire Transfer (ACH, Fedwire and SWIFT). We also accept crypto payments through Bitcoin, Ethereum, Tether, Binance, Ripple and 100+ Cryptocurrencies . WHOIS History Lookup Discover a domain's past owners and details with our free WHOIS History tool . Our Historical WHOIS Database contains over 3.14 Billion WHOIS records of about 727 Million domain names. This powers our WHOIS History API , which lets you quickly see the complete WHOIS history of any domain name that was ever registered.