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Most TXT records can have up to 255 characters. For TXT records that include more than 255 characters, DNS adds multiple strings together in a single record. If you're using a 2048-bit DKIM key, you can't enter it as a single text string in a DNS record with a 255-character limit.

There are no specific formatting requirements for basic TXT records, but there are some restrictions. These records aren't meant for large bytes of data. If the text value is longer than 255 characters, you'll need to split the value into separate parts.

How to lookup TXT records on Windows. To check the TXT records for a certain domain name on Windows, follow these steps: Open a command prompt by navigating to Start → 'Type here to search' → 'cmd' → Open. Type nslookup -q=txt example.com and hit [enter] to get the TXT records for example.com .

DNS TTL (time to live) is a setting that tells the DNS resolver how long to cache a query before requesting a new one. The information gathered is then stored in the cache of the recursive or local resolver for the TTL before it reaches back out to collect new, updated details.

The DNS 'text' (TXT) record lets a domain administrator enter text into the Domain Name System (DNS). The TXT record was originally intended as a place for human-readable notes. However, now it is also possible to put some machine-readable data into TXT records.

A TTL of 1800 to 3600 is recommended for TXT (SPF)/DMARC/DKIM/CAA records. If you don't need to make changes often, opt for the higher TTL, which will be sufficient since these records are primarily used for static verifications.

The default TTL for A records is 14,400 seconds. This means that if an A record gets updated, it takes 240 minutes (14,400 seconds) to take effect.

Most TXT records can have up to 255 characters. For TXT records that include more than 255 characters, DNS adds multiple strings together in a single record. If you're using a 2048-bit DKIM key, you can't enter it as a single text string in a DNS record with a 255-character limit.

There are no specific formatting requirements for basic TXT records, but there are some restrictions. These records aren't meant for large bytes of data. If the text value is longer than 255 characters, you'll need to split the value into separate parts.

How to lookup TXT records on Windows. To check the TXT records for a certain domain name on Windows, follow these steps: Open a command prompt by navigating to Start → 'Type here to search' → 'cmd' → Open. Type nslookup -q=txt example.com and hit [enter] to get the TXT records for example.com .

DNS TTL (time to live) is a setting that tells the DNS resolver how long to cache a query before requesting a new one. The information gathered is then stored in the cache of the recursive or local resolver for the TTL before it reaches back out to collect new, updated details.

The DNS 'text' (TXT) record lets a domain administrator enter text into the Domain Name System (DNS). The TXT record was originally intended as a place for human-readable notes. However, now it is also possible to put some machine-readable data into TXT records.

A TTL of 1800 to 3600 is recommended for TXT (SPF)/DMARC/DKIM/CAA records. If you don't need to make changes often, opt for the higher TTL, which will be sufficient since these records are primarily used for static verifications.

The default TTL for A records is 14,400 seconds. This means that if an A record gets updated, it takes 240 minutes (14,400 seconds) to take effect.