As defined in the IETF RFC-7208, an SPF record must be a single string of text in a single DNS TXT record. Multiple SPF records for the same domain name are not allowed. Having multiple SPF records for a single domain could lead to conflicting information, making it difficult for receivin...
nslookup Nslookup is way more powerful than just that. It includes an interactive mode that lets you set additional options and run lots of queries in a row. To start an interactive nslookup session, you just enter nslookup, without any hostname following it. You should see an angle brack...
Multiple key-value pairs must be separated with spaces and can be up to 1024 characters in length. TTL: Enter a TTL value for the SVCB record. A smaller value indicates a shorter period of time to apply record updates. The default value is 10 minutes. Add an HTTPS record Scenarios The...
v=spf1: SPF version. ip4:192.0.2.0/24: Allowed IP address range. include:_spf.example.net: Includes the SPF policy from another domain. ~all: Soft fail for all other sources. For more information about SPF records see theSPF Record Lookuptool. ...
Includes a full security audit to track the changes per user. Templates Your time is valuable, so why waste it? We designed Templates to cut down on the time it takes to configure large groups of domains.Create a template of records and rules (like GeoDNS or Failover) and apply it to...
DNS SOA (start of authority) records store administrative information about domains or zones. This includes the primary name server, the time a server should wait between refreshes, and the last time a domain updated. They're useful with zone transfers because all DNS zones require this record ...
TXT records are used to map domain names to arbitrary text strings. They're used in multiple applications, in particular related to email configuration, such as theSender Policy Framework (SPF)andDomainKeys Identified Mail (DKIM). The DNS standards permit a single TXT record to contain multiple ...
ADNS zone filecan be likened to an organized filing cabinet. It is a plain text document that houses critical information about a domain name. This file includes resource records, which enable the efficient pairing of domain names with their related requests, streamlining the process of finding wh...
4. Review the results: Analyze the response returned by the DNS server, which includes the IP address and additional DNS information. Online DNS lookup tools Several web-based tools are available for performing DNS lookups without needing to use the command line. These options are convenient for...
Weight. Used when multiple servers have the same priority; higher values give a server more priority. Port. The TCP or UDP port the service is running on. Target. The canonical hostname of the machine providing the service. PTR Record PTR (Pointer) records are the inverse of A or AAAA ...