Need access to more types of DNS records? Obtain comprehensive and accurate DNS data fast. Enrich threat intelligence, protect networks from DDoS attacks, and uncover more assets with our DNS products.
Access market-leading repositories of historical DNS data with the highest number of unique FQDNs across several DNS record types.
Explore DatabaseObtain the IP address, MX servers, NSs, and other DNS records for one or more domains with API calls.
Explore APILook up the IP address, MX, NS, TXT, CNAME, SOA, and other records of a domain using a web-based tool.
Explore LookupRetrieve the historical A and AAAA records of one or more domains or perform a reverse lookup instantly with API calls.
Explore APIFind a domain’s past IP address connections (forward search) or obtain a list of domains associated with an IP address (reverse search) within seconds using a GUI.
Explore Lookup"我们希望为所有 Cyberscape 用户提供整合网络威胁调查相关数据的能力。WhoisXML API 所提供的独特数据将对网络威胁调查社区有所帮助，分析师可以缩短了解和缓解威胁的周期"。
"WhoisXML 改变了我们的游戏规则，可快速识别所有那些为网络犯罪分子提供物质支持的供应商，这些犯罪分子使用看似合法实则使用非常复杂的网站，从而彻底颠覆了我们在过程中侦破网络犯罪的能力。通过快速识别这些在不知情的情况下位犯罪分子提供支持的供应商，可协助其以公共利益为目的，摧毁犯罪分子的基础设施。”
A TXT record is a type of DNS record that allows domain name owners to associate arbitrary text with their domain names that other Internet-connected systems and services can read. This text is most commonly used for domain ownership verification and email authentication.
TXT records can contain text strings in the value field, which can be any text that the domain administrator wants to assign. This text string, along with the record’s TTL value, is then stored on our passive DNS database.
Yes, a single domain can have several TXT records. This is often necessary when using multiple services that require their own specific TXT records for verification or authentication purposes. Our TXT Record Lookup tool returns all the TXT records it finds for a queried domain.
TXT records essentially help different online services trust and correctly interact with your domain. If a TXT record is configured incorrectly or missing when required, it can lead to various issues. For example, email authentication may fail, causing emails to be marked as spam. This can also prevent certain online services from verifying the domain, which may interfere with how they function.
You may use our DNS Lookup API, which returns TXT records and other DNS record types, or our lookup tool.
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